ToolStash Offers Free, Privacy-First Developer Utilities That Run Entirely in Browser

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A developer has launched ToolStash, a free collection of browser-based utilities designed to handle common coding tasks without ads, signups, or data uploads. The platform currently includes tools such as a JSON formatter, diff checker, UUID generator, SQL formatter, regex tester, and YAML-to-JSON converter. All tools run as plain JavaScript client-side, meaning no user input is ever sent to a backend server, addressing privacy concerns when working with real data. The creator built ToolStash out of frustration with existing tool sites that are slow, ad-heavy, or require account registration. Additional utilities including a base64 encoder, cron expression builder, and password generator are planned for upcoming releases.

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