About DevNib

DevNib is a free, focused suite of browser-based developer tools built for the small, frequent tasks that interrupt real work: formatting a JSON payload, testing a regular expression, decoding a JWT, converting a timestamp, or diagramming a quick flow. No installs, no accounts, no context-switching to a desktop app — just open a tab and get the answer.

Our goal is simple: give developers a single, reliable place for the utilities they'd otherwise Google one-off, piece together from scattered sites, or rebuild themselves. Every tool on DevNib is grouped by category — Editors, JSON, Text, Encoding, Regex, and Date/Time — so the right utility is always a click away, and every tool is designed to give precise, correct results the first time.

Privacy is built in, not bolted on. Every tool runs 100% client-side in your browser using JavaScript — nothing you paste, type, or upload is ever sent to a server, logged, or stored. That means DevNib is safe to use even with sensitive payloads, internal API responses, or proprietary code, and it works instantly with no network round-trip.

DevNib is independently built and actively maintained, with new tools added based on what developers actually need day to day. Have a tool you wish existed, or feedback on an existing one? Get in touch — we'd like to hear from you.

Need a tool that isn't here yet? Request a tool: email us a short description and our AI assistant will build it and reply with a link.