Developer Toolkit

Extension with 8 essential developer tools

Developer Toolkit (DevTools Toolbox) is a lightweight, all-in-one efficiency workspace tailored for modern software engineers. By utilizing an elegant and intuitive tab-based interface, we combine 8 of the most frequently used day-to-day utilities into a single, highly-optimized extension. No more heavy, ad-ridden web tools, and no more constant context-switching across dozens of bookmarked sites. Everything runs 100% locally in your browser. 【Core Modules Included】 • SQL Formatter: Beautify, format, and minify SQL statements with support for multiple SQL dialects. • JWT Decoder: Instantly parse JSON Web Tokens (JWT) and visually inspect Header, Payload, and signature status offline. • Regex Tester: Test regular expressions in real-time with live matching highlights and capture group views. • UUID Generator: Batch generate high-quality Cryptographically Secure UUIDs/GUIDs with one-click copy. • Timestamp Converter: Bi-directional quick conversion between Unix timestamps (seconds/milliseconds) and human-readable time. • Code Diff: A highly efficient side-by-side text and code comparison utility that cleanly highlights line additions and deletions. • Line Counter: Instantly calculate total lines, empty lines, and character metrics for any pasted text blocks. • Markdown Preview: A distraction-free Markdown editor equipped with live HTML preview rendering. 【Upcoming Extensions (Coming Soon)】 • JSON Formatter (Advanced interactive JSON tree viewer) • Base64 Encoder/Decoder (Fast text & image Base64 processing) • Hash Generator (Secure cryptographic hashing: MD5, SHA-256, etc.) 【Why Choose Developer Toolkit?】 Privacy First & 100% Secure: We do NOT track your browsing history or inject heavy persistent content scripts into every page you visit. Every computation (including JWT decoding and code diffing) is processed strictly within your local browser sandbox. Built for Speed: Modular design, ultra-low memory footprint, and absolutely ZERO remote tracking analytics or external advertisement scripts. Native Integration: Includes a built-in global context menu shortcut. Right-click any selected text on a documentation page to process it directly inside your clean popup interface. Ditch the browser tab clutter and supercharge your engineering workflow today!