yang changjiang

yang changjiang

I want to create 100 web tools sites
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āš”ļø 4 day streak
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About

Hey Product Hunt! šŸ‘‹ I'm a solo developer from China, and I've set myself a crazy goal: build 100 free tools in 14 languages. This is #1 ā€” PasswordGen. Why? Because most online tools are English-only, closed-source, or littered with trackers. I want to prove you can make useful things that are: ā€¢ Truly free ā€” no paywalls, no forced signups ā€¢ Truly private ā€” everything runs in your browser ā€¢ Truly global ā€” 14 languages, not just English PasswordGen was built with the Web Crypto API (same RNG as TLS). It does not collect, store, or transmit anything. Open DevTools and check ā€” zero network requests for password generation. I'm launching one tool at a time. QRfree is next. If you like the idea of 100 free, private, multilingual tools, say hi šŸ‘‡ Wish me luck šŸ€

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Maker History

  • SoundTool
    SoundTool43 free audio tools & 8 virtual instruments in 14 languages
    Aug 2026
  • PasswordGen
    PasswordGen14-language password generator ā€” truly free, zero tracking
    Jun 2026
    • šŸŽ‰
    Joined Product HuntJune 21st, 2026

Forums

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5h ago

SoundTool - 43 free audio tools & 8 virtual instruments in 14 languages

SoundTool ā€” 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 ā€” 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.
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2mo ago

PasswordGen - 14-language password generator ā€” truly free, zero tracking

PasswordGen ā€” free, browser-based password generator. 14 languages, 22 tools (6-char to 64-char, PINs, hex, memorable). Uses Web Crypto API, zero data collection. 15 security guides (NIST/OWASP cited). Open DevTools: no network requests. 100% client-side. Next tool: QRfree.
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