Launching today
SoundTool
43 free audio tools & 8 virtual instruments in 14 languages
3 followers
43 free audio tools & 8 virtual instruments in 14 languages
3 followers
SoundTool — free, browser-based audio toolkit. 43 tools: trim/merge/convert, EQ, reverb, BPM detector, vocal isolator, TTS, and 8 playable virtual instruments (piano, violin, guitar, sax, kalimba...). Every instrument records and exports WAV — no account, no upload, 100% client-side. 14 languages. Built by a solo developer on the Web Audio API. Zero data collection: your audio never leaves the browser.
Hey Product Hunt! 👋
I'm a solo developer from China, and I've built a free audio toolkit: 43 tools and 8 playable virtual instruments, all
running 100% in your browser.
Why? Because most audio tools are paywalled, require uploads to servers, or are English-only. SoundTool is none of that:
• Every instrument actually records — hit ⏺, play, export WAV
• Audio never leaves your device (Web Audio API, zero upload)
• 14 languages, from English to Hindi
• No accounts, no paywalls
Try the violin or kalimba — they're real playable instruments with bow/vibrato, not colored buttons.
Built it solo with Web Audio API. Next up: more instruments and a chord trainer. Happy to answer anything