Dev Tools
10 free dev utilities. No signup, no ads, instant results.
JSON Formatter
Format, validate, and minify JSON online. Syntax error highlighting with exact line positions. Runs in your browser.
CSS Gradient Generator
Visual CSS gradient editor — linear, radial & conic. 12+ presets, multi-stop colour control, real-time CSS output.
Favicon Generator
Generate perfectly sized standard favicons from text or emoji. Creates PNGs, Apple Touch Icons, and more in seconds.
Base64 Encoder & Decoder
Instantly encode standard text or decode Base64 strings. Runs securely client-side for 100% data privacy.
Regex Tester
Visually debug Regular Expressions on the fly with syntax highlighting, live indexing, and loop protection.
SQL Formatter
Beautify raw, minified database queries into perfectly indented, readable syntax.
Epoch Converter
Instantly translate Unix epoch integers into formatted dates across timezones.
Code Diff Checker
Compare two code blocks or text files side-by-side with visual diff highlighting. Runs 100% in your browser — fully private.
JWT Decoder
Decode any JSON Web Token instantly. View header, payload, and all claims. Check expiry, issuer, and subject. 100% client-side.
UUID Generator
Generate UUID v4, v1, v5, ULID and NanoID in bulk. Uppercase, no-hyphens and braces formatting. Copy all or download as .txt.
Developer Tools: Client-Side Utilities for Modern Engineering
Software engineers shouldn't have to paste sensitive API payloads, JWT tokens, or proprietary codebase snippets into random online tools that log their data. Security and speed are the two pillars of our Developer Utilities suite. We engineer these tools to run 100% locally in your browser using modern Web APIs, ensuring that your data never touches a remote server.
From JSON formatters that instantly validate deep nested structures, to Base64 encoders, UUID generators, and RegEx testers, this is your frictionless toolkit. We strip away the ads, the popups, and the loading screens, giving you a clean, dark-mode environment designed for deep focus.
Performance as a Feature
Every developer tool on this platform is strictly audited to score 100/100 on Google Lighthouse. We leverage pure React state management and optimized inline CSS architectures to guarantee instant interactivity. Whether you're debugging a complex API response or generating bulk universally unique identifiers for a database migration, our tools execute with zero latency.