buncha.tools
buncha/video & audio/tuner

Instrument Tuner

Tuner ready
♭ flat
sharp ♯

Tap a string to hear its reference pitch, or start the mic and play. The audio is analysed in your browser and never recorded or uploaded.

Pairs well with

AI Mastering
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Audio Speed Changer
Speed up or slow down any audio file from 0.5× to …

About Instrument Tuner

A chromatic microphone tuner with a live cents needle, configurable A4, instrument presets for guitar, bass, ukulele and violin, and built-in reference tones. Runs entirely in your browser.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
386
Free tools
Across 14 categories
27
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.