dev101.io is a privacy-first, keyboard-driven utility hub designed specifically for software engineers and developers. Packing over 60 essential utilities into a single browser-based interface, it allows users to format JSON, decode JWTs, hash strings, convert timezones, build regex, and much more without switching tabs or tools.
Built with privacy and efficiency at its core, dev101.io runs 100% client-side. All data transformations happen directly inside your browser tab, ensuring your data never leaves your device or gets uploaded to external servers. Featuring a lightning-fast command palette (⌘K) to quickly jump to any tool, the platform is entirely free, requires no signup, features no ads, and is fully installable to work offline.
Yes, dev101.io is completely free with no ads, signups, or paid tiers mentioned.
Yes. All data transformations run 100% client-side in your browser, meaning your data never leaves your tab or gets uploaded to external servers.
Yes, dev101.io is installable and works completely offline.
You can use the keyboard shortcut ⌘K to instantly jump to any tool in the hub.
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