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 without any external dependencies, backend servers, or analytics. The project was motivated by privacy concerns with existing online tools, such as JWT decoders and regex testers, which can log or transmit user data to remote servers. All operations run locally in the browser using native APIs including Web Crypto, Canvas, Web Audio, and IndexedDB. The toolkit covers a wide range of developer needs, including JWT inspection, RSA key generation, JSON formatting, cURL conversion, regex testing, and AI prompt optimization. The tools are freely accessible at antigravitytools.app and require no installation, accounts, or cookies.

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Developer Builds Spider-Man-Themed Portfolio Site Inspired by Peter Parker's Curiosity

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Tim King, Creator of Tripos OS That Powered the Amiga, Dies at 78

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