Free tools & games. No ads. Ever.
Every tool here is free, open-source, and runs entirely in your browser. No ads, no tracking, no accounts, no data collection. If it can't be free, it'll be a cheap one-off payment. Never ads.
Domain WHOIS via RDAP, DNS records, and IP geolocation. Supports path-based lookups.
Validate, format, minify, and explore JSON with syntax highlighting and tree view.
Decode JWT tokens — inspect header, payload, and expiration status.
Encode and decode Base64 strings and files. URL-safe option included.
Decode cron expressions into plain English with the next 10 scheduled runs.
Compare two texts with line and word-level highlighting. Unified or side-by-side views.
Generate SHA-256, SHA-384, SHA-512 hashes from text or files using Web Crypto API.
Generate QR codes for URLs, WiFi, email, and more. Download as PNG or SVG.
Test regex patterns live with capture groups, named groups, and replace mode.
Encode/decode URL components, parse URLs, and build query strings.
Classic QBasic snake game remake. 1-2 players, 9 levels, retro CRT effects.
QBasic Gorillas remake. Aim angle and velocity to hit your opponent with bananas.
Classic Pong with a neon glow aesthetic. Simple, fast, satisfying.
Grid-based puzzle game. Remove arrows in the right order. Multiple difficulty modes.
43 hands-on web security labs. XSS, SQL injection, CSRF, and more — exploit and fix. Requires Docker to self-host.