Developer builds 59 privacy-first browser tools in vanilla JS with zero dependencies

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A developer has publicly launched Antigravity Tools, a collection of 59 free, browser-based utilities built entirely in vanilla JavaScript with no external dependencies or server-side processing. The project was designed with privacy as a core principle, ensuring that all operations — including JWT decoding, hashing, and regex testing — run locally inside the user's browser. Tools rely solely on native browser APIs such as Web Crypto, Canvas, Web Audio, and IndexedDB, with no analytics, cookies, or backend involved. The collection spans a wide range of developer needs, including AI prompt utilities, code converters, a cron builder, and a Git command helper. The developer cited concerns about existing online tools logging user data — such as JWT tokens and regex test strings — as the primary motivation for building a privacy-respecting alternative.

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ProgrammingDEV Community ·

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