In December of 2022, I was scrolling Twitter in the wee-hours of the morning holding my then-newborn daughter. ChatGPT had launched, and we were all figuring out what this technology was and how to make it useful. Developers were using retrieval to bring their data to the models - and so I DM\u2019d every person who had tweeted about \u201cembeddings\u201d in the entire month of December. (it was only 120 people!) I saw then how AI was going to need to search to all the world\u2019s information to build useful and reliable applications.
Anton Troynikov and I started Chroma with the beliefs that:
1. AI-based systems were way too difficult to productionize
2. Latent space was incredibly important to improving AI-based systems (no one understood this at the time)
On Valentines Day 2023, we launched first version of Chroma and it immediately took off. Chroma made retrieval just work. Chroma is now a large open-source project with 21k+ stars and 5M monthly downloads, used at companies like Apple, Amazon, Salesforce, and Microsoft.
Today we\u2019re excited to launch Chroma Cloud - our fully-managed offering backed by an Apache 2.0 serverless database called Chroma Distributed. Chroma Distributed is written in Rust and uses object-storage for extreme scalability and reliability. Chroma Cloud is fast and cheap. Leading AI companies such as Factory, Weights & Biases, Propel, and Foam already use Chroma Cloud in production to power their agents. It brings the \u201cit just works\u201d developer experience developers have come to know Chroma for - to the Cloud.
Try it out and let me know what you think!
\u2014 Jeff"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: Chroma Cloud \u2013 serverless search database for AI"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://trychroma.com/cloud"}},"_tags":["story","author_jeffchuber","story_44944241","show_hn"],"author":"jeffchuber","children":[44954123,44954504,44954540,44954547,44955088,44956068,44956240,44956372,44956589,44957763,44957979,44958085,44958408,44958868,44960398,44961178],"created_at":"2025-08-18T19:20:01Z","created_at_i":1755544801,"num_comments":40,"objectID":"44944241","points":93,"story_id":44944241,"story_text":"Hey HN - I\u2019m Jeff, co-founder of Chroma.
In December of 2022, I was scrolling Twitter in the wee-hours of the morning holding my then-newborn daughter. ChatGPT had launched, and we were all figuring out what this technology was and how to make it useful. Developers were using retrieval to bring their data to the models - and so I DM\u2019d every person who had tweeted about \u201cembeddings\u201d in the entire month of December. (it was only 120 people!) I saw then how AI was going to need to search to all the world\u2019s information to build useful and reliable applications.
Anton Troynikov and I started Chroma with the beliefs that:
1. AI-based systems were way too difficult to productionize
2. Latent space was incredibly important to improving AI-based systems (no one understood this at the time)
On Valentines Day 2023, we launched first version of Chroma and it immediately took off. Chroma made retrieval just work. Chroma is now a large open-source project with 21k+ stars and 5M monthly downloads, used at companies like Apple, Amazon, Salesforce, and Microsoft.
Today we\u2019re excited to launch Chroma Cloud - our fully-managed offering backed by an Apache 2.0 serverless database called Chroma Distributed. Chroma Distributed is written in Rust and uses object-storage for extreme scalability and reliability. Chroma Cloud is fast and cheap. Leading AI companies such as Factory, Weights & Biases, Propel, and Foam already use Chroma Cloud in production to power their agents. It brings the \u201cit just works\u201d developer experience developers have come to know Chroma for - to the Cloud.
Try it out and let me know what you think!
\u2014 Jeff","title":"Show HN: Chroma Cloud \u2013 serverless search database for AI","updated_at":"2026-03-05T22:30:52Z","url":"https://trychroma.com/cloud"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"bkudria"},"story_text":{"matchLevel":"none","matchedWords":[],"value":""},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chroma-Hash: a sexy, non-reversible, live visualization of password field input"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://mattt.github.com/Chroma-Hash/"}},"_tags":["story","author_bkudria","story_729556"],"author":"bkudria","children":[729563,729593,729604,729605,729613,729619,729622,729649,729665,729806,729864,729977,730000,730013,730023,730465],"created_at":"2009-07-29T06:26:48Z","created_at_i":1248848808,"num_comments":66,"objectID":"729556","points":83,"story_id":729556,"story_text":"","title":"Chroma-Hash: a sexy, non-reversible, live visualization of password field input","updated_at":"2024-09-19T16:39:20Z","url":"http://mattt.github.com/Chroma-Hash/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"luu"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chromatron Wi-Fi Pixel Controller"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://chromatron.io/"}},"_tags":["story","author_luu","story_22717295"],"author":"luu","children":[22723754,22723956,22723962,22724040,22724047,22724171,22725084,22725913,22726664,22726757,22727322],"created_at":"2020-03-29T08:28:21Z","created_at_i":1585470501,"num_comments":36,"objectID":"22717295","points":80,"story_id":22717295,"title":"Chromatron Wi-Fi Pixel Controller","updated_at":"2024-09-20T05:50:17Z","url":"http://chromatron.io/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"llambda"},"story_text":{"matchLevel":"none","matchedWords":[],"value":""},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"ChromaShift: Browser-based game written in ClojureScript"},"url":{"matchLevel":"none","matchedWords":[],"value":"http://kodowa.nko3.jit.su/"}},"_tags":["story","author_llambda","story_4771273"],"author":"llambda","children":[4771292,4771313,4771400,4771505,4771506,4771671,4771953,4771955,4772726],"created_at":"2012-11-12T01:47:51Z","created_at_i":1352684871,"num_comments":17,"objectID":"4771273","points":78,"story_id":4771273,"story_text":"","title":"ChromaShift: Browser-based game written in ClojureScript","updated_at":"2023-09-06T21:30:10Z","url":"http://kodowa.nko3.jit.su/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"matt_d"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"k-Coloring is Faster than Computing the Chromatic Number"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://arxiv.org/abs/2607.25973"}},"_tags":["story","author_matt_d","story_49119508"],"author":"matt_d","children":[49221547,49221738,49222902,49225183],"created_at":"2026-07-31T06:00:34Z","created_at_i":1785477634,"num_comments":23,"objectID":"49119508","points":74,"story_id":49119508,"title":"k-Coloring is Faster than Computing the Chromatic Number","updated_at":"2026-08-13T03:36:16Z","url":"https://arxiv.org/abs/2607.25973"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"philip1209"},"story_text":{"matchLevel":"none","matchedWords":[],"value":"https://x.com/trychroma/status/2037243681988894950
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https://xcancel.com/trychroma/status/2037243681988894950","title":"Chroma Context-1: Training a Self-Editing Search Agent","updated_at":"2026-04-24T21:22:46Z","url":"https://www.trychroma.com/research/context-1"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"jeffchuber"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Wal3: A Write-Ahead Log for Chroma, Built on Object Storage"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://trychroma.com/engineering/wal3"}},"_tags":["story","author_jeffchuber","story_45129369"],"author":"jeffchuber","children":[45129753,45132508,45133751,45133911],"created_at":"2025-09-04T16:55:06Z","created_at_i":1757004906,"num_comments":8,"objectID":"45129369","points":66,"story_id":45129369,"title":"Wal3: A Write-Ahead Log for Chroma, Built on Object Storage","updated_at":"2026-03-05T22:38:42Z","url":"https://trychroma.com/engineering/wal3"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"hising"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chroma.js \u2013 A JavaScript library for color conversions and color scales"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://github.com/gka/chroma.js"}},"_tags":["story","author_hising","story_8603955"],"author":"hising","children":[8604655,8604691,8604798,8604996,8605752],"created_at":"2014-11-13T20:45:45Z","created_at_i":1415911545,"num_comments":6,"objectID":"8603955","points":66,"story_id":8603955,"title":"Chroma.js \u2013 A JavaScript library for color conversions and color scales","updated_at":"2024-09-19T21:13:59Z","url":"https://github.com/gka/chroma.js"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"lurtbancaster"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chroma Doze \u2013 Open-Source Customizable White Noise Generator for Android"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://f-droid.org/packages/net.pmarks.chromadoze/"}},"_tags":["story","author_lurtbancaster","story_35011747"],"author":"lurtbancaster","children":[35012381,35012590,35013265,35013392,35013409,35013988],"created_at":"2023-03-03T16:33:34Z","created_at_i":1677861214,"num_comments":9,"objectID":"35011747","points":64,"story_id":35011747,"title":"Chroma Doze \u2013 Open-Source Customizable White Noise Generator for Android","updated_at":"2024-09-20T13:22:40Z","url":"https://f-droid.org/packages/net.pmarks.chromadoze/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"mbitsnbites"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: A luma dependent chroma compression algorithm (image compression)"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-algorithm/"}},"_tags":["story","author_mbitsnbites","story_46884412","show_hn"],"author":"mbitsnbites","children":[46929092,46929492,46931212,46931394,46932115,46932662,47000456,47039900],"created_at":"2026-02-04T11:13:33Z","created_at_i":1770203613,"num_comments":13,"objectID":"46884412","points":59,"story_id":46884412,"title":"Show HN: A luma dependent chroma compression algorithm (image compression)","updated_at":"2026-05-15T07:10:12Z","url":"https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-algorithm/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"arsentjev"},"story_text":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://github.com/stepandel/chroma-explorer"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"ChromaDB Explorer"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://www.chroma-explorer.com/"}},"_tags":["story","author_arsentjev","story_46624731"],"author":"arsentjev","children":[46624732,46626171,46627635,46628443],"created_at":"2026-01-14T22:30:16Z","created_at_i":1768429816,"num_comments":6,"objectID":"46624731","points":59,"story_id":46624731,"story_text":"https://github.com/stepandel/chroma-explorer","title":"ChromaDB Explorer","updated_at":"2026-03-05T23:24:21Z","url":"https://www.chroma-explorer.com/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"v15w"},"story_text":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"We're happy to present Veena Chromatic Tuner, an app we've developed for musicians, instrument makers, and ethnomusicologists who need more than just a standard chromatic tuner. Our goal was to create a tool that not only supports pitch detection but also provides deep support for diverse musical intonation systems and offers intuitive visual feedback.
The Problem We're Solving:\nMany tuners are good for Equal Temperament, but has limited support when it comes to the Just Intonation, microtonal music, or the specific requirements of instruments like the Veena where fret positions are determined by precise ratios.
Oscilloscope-like Visual Feedback:\nInstead of just a needle, you get a dynamic, oscilloscope-like waveform display.
In Tune: The waveform appears stabilized, giving you an immediate, confirmation of perfect pitch.\nSharp: The waveform rotates right.\nFlat: The waveform rotates left.
This dynamic visual feedback, akin to a digital oscilloscope's trigger synchronization, offers immediate, precise adjustment cues that go far beyond what a static needle can provide, allowing for incredibly fine-tuned adjustments.
Unmatched Intonation Flexibility:\nWe understand that music isn't just 12-TET.
Just Intonation Support: Perfect for Indian classical music, early music, and any tradition that relies on pure harmonic relationships between notes. This is crucial for achieving the rich, resonant chords and melodic purity that Equal Temperament can't always deliver.
Custom Temperaments: Go beyond presets! Create, save, and manage your own unique temperaments with personalized ratio settings. This empowers composers, researchers, and performers to explore microtonal scales and historical tunings with ease.
Dedicated Veena Instrument Mode: It allows users to play and tune notes across 24 fret positions, specifically highlighting how note positions on the fretboard vary relative to each other when pure intonation is applied. This feature is invaluable for instrument makers and those studying the physics of string instruments.
Other Key Features:
Multicultural Note Naming: Display notes in Western, Indian classical (Carnatic/Hindustani), and Solfege, with support for multiple Indian language scripts (Tamil, Devanagari, Telugu, Kannada, Malayalam).
Adjustable Reference Pitch: Customize A4 frequency from 440Hz to 432Hz or anything in between.
Transposition Support: Easily transpose notes for different instruments.
This app is would be useful for string players (veena, violin, guitar, sitar, etc.), wind instrument musicians, vocalists, music teachers, students, ethnomusicologists, and especially instrument makers and tuners who need to work with precise intonation and fret setting. Anyone exploring microtonal music will also find it incredibly useful.
We're actively developing the app, continuously adding features and improvements. While pitch detection is resource-intensive, we strive for broad device compatibility.
Check it out on Google Play: [https://play.google.com/store/apps/details?id=in.magima.digi...]
We welcome your feedback, questions, and thoughts!"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: Veena Chromatic Tuner"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://play.google.com/store/apps/details?id=in.magima.digitaltuner&hl=en_US"}},"_tags":["story","author_v15w","story_45165245","show_hn"],"author":"v15w","children":[45165493,45165701,45165837,45166000,45166220,45166518,45166742,45167056,45167206,45167569,45168715,45169456,45181126],"created_at":"2025-09-08T06:38:34Z","created_at_i":1757313514,"num_comments":45,"objectID":"45165245","points":53,"story_id":45165245,"story_text":"We're happy to present Veena Chromatic Tuner, an app we've developed for musicians, instrument makers, and ethnomusicologists who need more than just a standard chromatic tuner. Our goal was to create a tool that not only supports pitch detection but also provides deep support for diverse musical intonation systems and offers intuitive visual feedback.
The Problem We're Solving:\nMany tuners are good for Equal Temperament, but has limited support when it comes to the Just Intonation, microtonal music, or the specific requirements of instruments like the Veena where fret positions are determined by precise ratios.
Oscilloscope-like Visual Feedback:\nInstead of just a needle, you get a dynamic, oscilloscope-like waveform display.
In Tune: The waveform appears stabilized, giving you an immediate, confirmation of perfect pitch.\nSharp: The waveform rotates right.\nFlat: The waveform rotates left.
This dynamic visual feedback, akin to a digital oscilloscope's trigger synchronization, offers immediate, precise adjustment cues that go far beyond what a static needle can provide, allowing for incredibly fine-tuned adjustments.
Unmatched Intonation Flexibility:\nWe understand that music isn't just 12-TET.
Just Intonation Support: Perfect for Indian classical music, early music, and any tradition that relies on pure harmonic relationships between notes. This is crucial for achieving the rich, resonant chords and melodic purity that Equal Temperament can't always deliver.
Custom Temperaments: Go beyond presets! Create, save, and manage your own unique temperaments with personalized ratio settings. This empowers composers, researchers, and performers to explore microtonal scales and historical tunings with ease.
Dedicated Veena Instrument Mode: It allows users to play and tune notes across 24 fret positions, specifically highlighting how note positions on the fretboard vary relative to each other when pure intonation is applied. This feature is invaluable for instrument makers and those studying the physics of string instruments.
Other Key Features:
Multicultural Note Naming: Display notes in Western, Indian classical (Carnatic/Hindustani), and Solfege, with support for multiple Indian language scripts (Tamil, Devanagari, Telugu, Kannada, Malayalam).
Adjustable Reference Pitch: Customize A4 frequency from 440Hz to 432Hz or anything in between.
Transposition Support: Easily transpose notes for different instruments.
This app is would be useful for string players (veena, violin, guitar, sitar, etc.), wind instrument musicians, vocalists, music teachers, students, ethnomusicologists, and especially instrument makers and tuners who need to work with precise intonation and fret setting. Anyone exploring microtonal music will also find it incredibly useful.
We're actively developing the app, continuously adding features and improvements. While pitch detection is resource-intensive, we strive for broad device compatibility.
Check it out on Google Play: [https://play.google.com/store/apps/details?id=in.magima.digi...]
We welcome your feedback, questions, and thoughts!","title":"Show HN: Veena Chromatic Tuner","updated_at":"2026-03-05T22:40:59Z","url":"https://play.google.com/store/apps/details?id=in.magima.digitaltuner&hl=en_US"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"jobstijl"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Introducing Daala part 4: Chroma from Luma (xiph video codec)"},"url":{"matchLevel":"none","matchedWords":[],"value":"http://people.xiph.org/~xiphmont/demo/daala/demo4.shtml"}},"_tags":["story","author_jobstijl","story_6501599"],"author":"jobstijl","children":[6501903,6502082,6502105,6502475,6503697],"created_at":"2013-10-05T18:51:39Z","created_at_i":1380999099,"num_comments":8,"objectID":"6501599","points":53,"story_id":6501599,"title":"Introducing Daala part 4: Chroma from Luma (xiph video codec)","updated_at":"2024-09-19T19:58:04Z","url":"http://people.xiph.org/~xiphmont/demo/daala/demo4.shtml"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"DiamondsSteak"},"story_text":{"matchLevel":"none","matchedWords":[],"value":""},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Speaking about color: hue, value, saturation, chroma, shade, tint, tone"},"url":{"matchLevel":"none","matchedWords":[],"value":"http://www.landor.com/?do=thinking.blog&post_id=23223"}},"_tags":["story","author_DiamondsSteak","story_1880529"],"author":"DiamondsSteak","children":[1880810,1881214,1881282,1881347,1881460,1881604,1881769],"created_at":"2010-11-07T22:24:11Z","created_at_i":1289168651,"num_comments":16,"objectID":"1880529","points":52,"story_id":1880529,"story_text":"","title":"Speaking about color: hue, value, saturation, chroma, shade, tint, tone","updated_at":"2024-09-19T17:23:25Z","url":"http://www.landor.com/?do=thinking.blog&post_id=23223"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"mgdigital"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: A Scala Implementation of the Chromaprint/AcoustID Audio Fingerprinter"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://github.com/mgdigital/Chromaprint.scala"}},"_tags":["story","author_mgdigital","story_20045695","show_hn"],"author":"mgdigital","children":[20045748,20052562],"created_at":"2019-05-29T21:27:54Z","created_at_i":1559165274,"num_comments":14,"objectID":"20045695","points":49,"story_id":20045695,"title":"Show HN: A Scala Implementation of the Chromaprint/AcoustID Audio Fingerprinter","updated_at":"2024-09-20T04:17:02Z","url":"https://github.com/mgdigital/Chromaprint.scala"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"troydavis"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"DM48 Digital Chromatic Harmonica"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://www.lekholminstruments.com/"}},"_tags":["story","author_troydavis","story_20614470"],"author":"troydavis","children":[20614778,20614865,20615280,20615895],"created_at":"2019-08-05T14:29:11Z","created_at_i":1565015351,"num_comments":14,"objectID":"20614470","points":41,"story_id":20614470,"title":"DM48 Digital Chromatic Harmonica","updated_at":"2024-09-20T04:34:46Z","url":"https://www.lekholminstruments.com/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"stared"},"story_text":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Play: https://p.migdal.pl/chromatron-oxide/\nRepo: https://github.com/stared/chromatron-oxide/ (educational purpose only)\nThe original: https://www.silverspaceship.com/chromatron/
Full story in the blog post."},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: Reviving a 20-year-old puzzle game Chromatron with Ghidra and AI"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://quesma.com/blog/chromatron-recompiled/"}},"_tags":["story","author_stared","story_47287259","show_hn"],"author":"stared","children":[47291342,47305034,47305147,47305289,47311568],"created_at":"2026-03-07T12:56:43Z","created_at_i":1772888203,"num_comments":9,"objectID":"47287259","points":28,"story_id":47287259,"story_text":"Play: https://p.migdal.pl/chromatron-oxide/\nRepo: https://github.com/stared/chromatron-oxide/ (educational purpose only)\nThe original: https://www.silverspaceship.com/chromatron/
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Chroma-Hash displays a series of colored bars at the end of field inputs so you can instantly see if your password is right. Chroma-Hash takes an MD5 hash of your input and uses that to compute the colors in the visualization. The MD5 hash is non-reversible, so no one could know what your password just from the colors. Your password will display the same sequence each time, so you can learn to expect \"blue, red, pink\", for instance; if you instead see \"green, purple, yellow\", you'll know you typed it wrong. The visualization also includes a user defined salt to prevent guessing passwords. The visualization is also salted with the domain name, trying out site to user authentication as an experiment."},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"The Chroma Hash effect"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://dy-verse.blogspot.com/2009/08/chroma-hash-effect.html"}},"_tags":["story","author_axemclion","story_753248"],"author":"axemclion","children":[753375,753433,753508,753587],"created_at":"2009-08-10T16:05:25Z","created_at_i":1249920325,"num_comments":19,"objectID":"753248","points":15,"story_id":753248,"story_text":"Password entry can be frustrating, especially with long or difficult passwords. On a webpage, secure fields obscure your input with \u2022's, so others can't read it. Unfortunately, neither can you\u2014you can't tell if you got your password right until you click \"Log In\".
Chroma-Hash displays a series of colored bars at the end of field inputs so you can instantly see if your password is right. Chroma-Hash takes an MD5 hash of your input and uses that to compute the colors in the visualization. The MD5 hash is non-reversible, so no one could know what your password just from the colors. Your password will display the same sequence each time, so you can learn to expect \"blue, red, pink\", for instance; if you instead see \"green, purple, yellow\", you'll know you typed it wrong. The visualization also includes a user defined salt to prevent guessing passwords. The visualization is also salted with the domain name, trying out site to user authentication as an experiment.","title":"The Chroma Hash effect","updated_at":"2024-09-19T16:41:26Z","url":"http://dy-verse.blogspot.com/2009/08/chroma-hash-effect.html"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"iamwil"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chromakode's xkcdfools at master - GitHub"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://github.com/chromakode/xkcdfools"}},"_tags":["story","author_iamwil","story_1235881"],"author":"iamwil","children":[1235963],"created_at":"2010-04-02T02:46:33Z","created_at_i":1270176393,"num_comments":3,"objectID":"1235881","points":13,"story_id":1235881,"title":"Chromakode's xkcdfools at master - GitHub","updated_at":"2024-09-19T16:57:43Z","url":"http://github.com/chromakode/xkcdfools"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"samwillis"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Why does the chromaticity diagram look like that?"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://jlongster.com/why-chromaticity-shape"}},"_tags":["story","author_samwillis","story_38916715"],"author":"samwillis","created_at":"2024-01-08T19:19:17Z","created_at_i":1704741557,"num_comments":0,"objectID":"38916715","points":13,"story_id":38916715,"title":"Why does the chromaticity diagram look like that?","updated_at":"2024-09-20T16:01:24Z","url":"https://jlongster.com/why-chromaticity-shape"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"dmezzetti"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Txtai \u2013 A Strong Alternative to ChromaDB and LangChain for Vector Search and RAG"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://medium.com/neuml/vector-search-rag-landscape-a-review-with-txtai-a7f37ad0e187"}},"_tags":["story","author_dmezzetti","story_40887094"],"author":"dmezzetti","children":[40887522],"created_at":"2024-07-05T23:52:50Z","created_at_i":1720223570,"num_comments":1,"objectID":"40887094","points":12,"story_id":40887094,"title":"Txtai \u2013 A Strong Alternative to ChromaDB and LangChain for Vector Search and RAG","updated_at":"2025-03-30T14:23:55Z","url":"https://medium.com/neuml/vector-search-rag-landscape-a-review-with-txtai-a7f37ad0e187"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"Hooke"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"The Chromatic Effects of Late Nineteenth-Century London Fog (2016)"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://literarylondon.org/the-literary-london-journal/archive-of-the-literary-london-journal/issue-4-2/eyewitness-the-chromatic-effects-of-late-nineteenth-century-london-fog/"}},"_tags":["story","author_Hooke","story_25911895"],"author":"Hooke","children":[25922597],"created_at":"2021-01-26T02:57:58Z","created_at_i":1611629878,"num_comments":4,"objectID":"25911895","points":10,"story_id":25911895,"title":"The Chromatic Effects of Late Nineteenth-Century London Fog (2016)","updated_at":"2024-09-20T07:46:55Z","url":"http://literarylondon.org/the-literary-london-journal/archive-of-the-literary-london-journal/issue-4-2/eyewitness-the-chromatic-effects-of-late-nineteenth-century-london-fog/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"torrmal"},"story_text":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"If you have not seen it, this pretty cool open source project Ollama: It let's you run big LLMs in computers as small as your mac book!!
https://lu.ma/yourdatayourmodel
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https://lu.ma/yourdatayourmodel
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Looking at both the iOS and Android app stores, you'll find a lot of the top tuner apps are rather bloated with ads or subscription callouts. I thought I'd create a dead-simple minimalistic mobile chromatic tuner the way I would like it - open the app and tune my guitar.
My work is in web with NodeJS and React, so I chose React Native since it was the easiest to understand coming from React. Flutter was also an option since the company I work for has a team working in that, but I thought it would be a bit too much effort to learn Dart.
I learned a bit more about React rendering with this project as well. The main issue I had was trying to have a React state variable be constantly updated with any frequencies detected from the mic input, but that ended up causing substantial slowdown due to so many rerenders, so I opted to use a React ref to maintain any detections, and then only update the React state when there was an actual note. I feel like sometimes the UI has trouble updating occasionally when my iPhone is in battery saving mode, which I guess might be related to throttling the audio sample rate somehow, though I'm not entirely sure. Friends and family haven't noticed this, so it may be due to my old 2016 iPhone SE :P.
The apps you can find on the both the iOs App Store and Google Play (free!).
https://apps.apple.com/ca/app/jons-tuner/id1641018281
https://play.google.com/store/apps/details?id=com.orsi.jonst...
Would love any feedback!"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Show HN: I made a simple, open source, chromatic tuner mobile app"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://github.com/orsi/jonstuner"}},"_tags":["story","author_jonorsi","story_34200612","show_hn"],"author":"jonorsi","children":[34201111,34243306],"created_at":"2022-12-31T20:51:07Z","created_at_i":1672519867,"num_comments":3,"objectID":"34200612","points":5,"story_id":34200612,"story_text":"I'm a musician by night, software developer by day, and one of the minor frustrations I've always had was trying to find a simple tuner app for my phone. Looking at both the iOS and Android app stores, you'll find a lot of the top tuner apps are rather bloated with ads or subscription callouts. I thought I'd create a dead-simple minimalistic mobile chromatic tuner the way I would like it - open the app and tune my guitar.
My work is in web with NodeJS and React, so I chose React Native since it was the easiest to understand coming from React. Flutter was also an option since the company I work for has a team working in that, but I thought it would be a bit too much effort to learn Dart.
I learned a bit more about React rendering with this project as well. The main issue I had was trying to have a React state variable be constantly updated with any frequencies detected from the mic input, but that ended up causing substantial slowdown due to so many rerenders, so I opted to use a React ref to maintain any detections, and then only update the React state when there was an actual note. I feel like sometimes the UI has trouble updating occasionally when my iPhone is in battery saving mode, which I guess might be related to throttling the audio sample rate somehow, though I'm not entirely sure. Friends and family haven't noticed this, so it may be due to my old 2016 iPhone SE :P.
The apps you can find on the both the iOs App Store and Google Play (free!).
https://apps.apple.com/ca/app/jons-tuner/id1641018281
https://play.google.com/store/apps/details?id=com.orsi.jonst...
Would love any feedback!","title":"Show HN: I made a simple, open source, chromatic tuner mobile app","updated_at":"2024-09-20T12:55:56Z","url":"https://github.com/orsi/jonstuner"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"tambourine_man"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Vim Plugin for Razer Chroma: Keyboard LEDs Switch Colors in Insert/Normal Mode"},"url":{"matchLevel":"none","matchedWords":[],"value":"https://vimeo.com/175987019"}},"_tags":["story","author_tambourine_man","story_12245422"],"author":"tambourine_man","children":[12249456],"created_at":"2016-08-08T03:57:58Z","created_at_i":1470628678,"num_comments":1,"objectID":"12245422","points":5,"story_id":12245422,"title":"Vim Plugin for Razer Chroma: Keyboard LEDs Switch Colors in Insert/Normal Mode","updated_at":"2024-09-19T23:32:57Z","url":"https://vimeo.com/175987019"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"pierreneter"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chroma.js \u2013 magic library for all kinds of color manipulations"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"https://gka.github.io/chroma.js/"}},"_tags":["story","author_pierreneter","story_18527862"],"author":"pierreneter","created_at":"2018-11-25T17:51:39Z","created_at_i":1543168299,"num_comments":0,"objectID":"18527862","points":5,"story_id":18527862,"title":"Chroma.js \u2013 magic library for all kinds of color manipulations","updated_at":"2024-09-20T03:19:05Z","url":"https://gka.github.io/chroma.js/"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"yevbar"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"Chromatic Number of the Plane is at least five"}},"_tags":["story","author_yevbar","story_17468121","ask_hn"],"author":"yevbar","created_at":"2018-07-06T00:51:30Z","created_at_i":1530838290,"num_comments":0,"objectID":"17468121","points":5,"story_id":17468121,"title":"Chromatic Number of the Plane is at least five","updated_at":"2024-09-20T02:44:42Z"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"jashmenn"},"story_text":{"matchLevel":"none","matchedWords":[],"value":""},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"CHROMAom (YC W10) founder's awesome rainbow birthday cake"},"url":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["chroma"],"value":"http://ycombinator.posterous.com/chromaom-founder-darius-monsefs-birthday-cake"}},"_tags":["story","author_jashmenn","story_1277517"],"author":"jashmenn","created_at":"2010-04-19T18:52:08Z","created_at_i":1271703128,"num_comments":0,"objectID":"1277517","points":5,"story_id":1277517,"story_text":"","title":"CHROMAom (YC W10) founder's awesome rainbow birthday cake","updated_at":"2024-09-19T17:01:57Z","url":"http://ycombinator.posterous.com/chromaom-founder-darius-monsefs-birthday-cake"}],"hitsPerPage":50,"nbHits":29584,"nbPages":20,"page":0,"params":"query=Chroma&tags=story&hitsPerPage=50&advancedSyntax=true&analyticsTags=backend","processingTimeMS":10,"processingTimingsMS":{"_request":{"roundTrip":21},"afterFetch":{"format":{"highlighting":1,"total":1}},"fetch":{"query":2,"scanning":6,"total":9},"total":10},"query":"Chroma","serverTimeMS":12}