95+ browser-based dev tools that never touch a server

The article describes Wizbit.to, a collection of over 95 free browser-based developer utilities that process all data locally without sending it to any server. The tools include functions for data encoding, security and cryptography (such as JWT decoding and RSA key generation), developer utilities, frontend and CSS generators, AI tools, and even VFX calculators. The key differentiator is that no account, ads, or limits are required, and all data remains in the user's browser tab, disappearing when the tab is closed.

Every developer has a folder of bookmarks for one-off tools — a JWT decoder here, a Base64 encoder there, a cron expression tester somewhere else. Half of them send your data to a server you know nothing about. I built Wizbit.to to fix that. What it is 95+ free developer utilities, all running 100% in your browser. No server ever sees what you paste. No account. No ads. No limits. What's inside Data & encoding - JSON formatter, beautifier, minifier & validator - Base64 encoder/decoder - CSV → JSON, CSV → Markdown, YAML ↔ JSON converters - ENV file parser and ENV → JSON/YAML converter Security & crypto - JWT decoder with expiry checker and claims differ - Hash generator SHA-256, SHA-512 - RSA key pair generator & X.509 certificate inspector - BIP39 seed phrase generator - Password generator & strength checker Developer utilities - Regex tester with live match highlighting - Cron expression builder and syntax decoder - SQL formatter - Webhook visualizer and Stripe webhook simulator - UUID/GUID generator v4, v5, v7, bulk - HTTP status explorer - CIDR subnet calculator - Semver comparator Frontend & CSS - SVG → JSX converter and SVG cleaner - CSS shadow, clip-path, and glassmorphism generators - Color converter HEX, RGB, HSL - Bezier curve and spring physics playground AI & LLM tools - Prompt tokenizer and token calculator - Context trimmer and prompt compressor - AI response cleaner and text humanizer VFX & camera yes, really - Depth of field visualizer - LUT .cube file 3D visualizer - ACES color space matrix calculator - Timecode and frame arithmetic calculator - Focal length / FOV / crop factor matcher Why it's different Most online dev tools are thin wrappers around a server call. That's fine for public data — but when you're pasting a JWT, an RSA private key, an ENV file, or a seed phrase, you're trusting a server you've never audited. Wizbit processes everything locally. The code runs in your tab. Close the tab and it's gone.