Harold Huynh

Harold Huynh

Software Engineer making useful tools.
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Maker History

  • LocalTools
    LocalToolsPrivacy-first tools that work 100% on your machine.
    May 2026
    • 🎉
    Joined Product HuntApril 30th, 2026

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Harold Huynh•

1d ago

LocalTools - Privacy-first tools that work 100% on your machine.

Privacy-first toolbox for builders: LocalTools offers 40+ browser-based utilities — JSON/YAML/XML/TOML formatters, JWT debugger, PEM & PKI tools, HKDF/PBKDF2 playgrounds, AES-GCM, PDF merge/split, image optimizer, Markdown & regex studios, subnets, cron, QR — engineered so sensitive input stays client-side whenever possible instead of disappearing into black-box servers; free with no signup.
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