Webutilbox
94+ privacy-first, offline-first browser tools for devs.
Webutilbox launched on June 29, 2026 with 4 votes, #3,322 of 22,647 launches that month and more than 75% of that year's launches.
What it does
A suite of 94+ fast, ad-free developer utilities—from JSON formatting & JWT decoding to audio visualizers & converters. Because all operations run client-side using browser APIs, your sensitive data never leaves your device. 100% free.
94+ free online tools for JSON, passwords, images, calculators. Privacy-focused, works offline.
94+ free, fast, and privacy-focused utilities. No ads, no tracking, no data leaves your browser. Unlike other tool websites, Webutilbox processes all your data locally in your browser. Whether you are generating a password, formatting JSON, or compressing an image, your sensitive information never leaves your device. No servers, no logs, no leaks. Our tools are built with vanilla JavaScript and optimized CSS. There are no heavy frameworks, no tracking scripts, and no bloated library dependencies. This means near-instant load times and high performance even on older hardware. Once you have loaded a tool page, it will continue to work even if you lose your internet connection. Our…from webutilbox.com
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