Launching today

FlexChords

Launching today

Turn any YouTube video into accurate, playable guitar chords

30 followers

Turn any YouTube video into accurate, playable guitar chords

30 followers

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FlexChords turns any YouTube video or audio file into accurate, synchronized guitar chords in seconds. Unlike tools with noisy predictions or paywalls, FlexChords pairs deep learning with music-theory smoothing to eliminate glitches and deliver clean, musical progressions. Features include YouTube & audio chord detection, synced playback & real-time chords, interactive timeline with chord editor, key & tempo estimation. Instant access to unlimited catalog songs + 5 free custom scans (per month).

Free

Launch tags:Music•Artificial Intelligence•Audio

Launch Team / Built With

Floot MCPBuild and ship web and mobile apps inside Claude or ChatGPT

Promoted

FlexChords

Maker

📌

Hey Product Hunt! 👋 I’m Amit, creator of FlexChords. As a guitarist, I was constantly frustrated by two things: 1. Trying to learn a song on YouTube, only to find chord charts in the wrong key or horribly oversimplified. 2. Existing chord-detection platforms locking basic play-along tools, tempo control, and transposing behind rigid subscriptions. I built FlexChords to make learning and jamming along to any song effortless, accurate, and interactive. It is still a work in progress, and I'm continuously adding new features as well as refining the chord prediction pipeline. 🎸 What makes it stand out? - No Hallucinated Chords: Raw ML chord models tend to produce erratic, rapid-fire jitter. FlexChords uses a custom deterministic music-theory smoothing layer that absorbs glitches and respects key context for clean, playable progressions. - YouTube & Audio Uploads: Paste any YouTube link or drop an audio file to extract synchronized chords aligned with the track. - Interactive Timeline Editor: Tweak a chord voicing, adjust boundaries, or split sections directly on the visual timeline with full undo/redo. (MIDI export coming soon!) - Musician-First Tools: Automatic Key & BPM detection and Audacity label export. - Start Playing Instantly: Unlimited access to all pre-analyzed catalog songs, plus 5 free custom song analyses for every user (resets every month). Take your favorite track for a spin at https://www.flexchords.com ! I’d love to hear your feedback on chord accuracy, UX, or features you’d love to see next. What song are you trying first? 🎶

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1d ago

🧐 Good find

@amits97 Hey Amit - this is really cool! I tried it on a few songs and it was pretty good in most cases. One thing I'll point out so you can refine: one of the songs I ran it through was "Legs" by ZZ Top. It detected the key correctly (E) but the chord progression "ping-ponged" between E and Em.

Keep working on it!

P.S. Pure formatting correction - United States phone numbers are formatted as "111-222-3333". When I selected US and typed in my phone number it was formatted as "11122 23333".

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10h ago

FlexChords

Maker

@tyler_cutshall Thank you so much for testing it out and for the great feedback, Tyler! Really glad to hear it worked well across most of your songs. Great catch on "Legs" - that classic blues minor 3rd (G) over an E major groove is notoriously tricky for chord models and creates exactly that E -> Em tug-of-war. I'll definitely work on smoothing out those blues-scale transitions!

Also, thank you for flagging the US phone number format. That was definitely an oversight on my spacing rules, and I'll have a fix deployed for that shortly.

Appreciate the support and feedback!

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10h ago