Anvil
Free developer utilities. No signup, no tracking, no fuss.
UUID Generator
Generate one or many random UUIDs and copy them instantly.
Password Generator
Create strong, random passwords with custom length and character sets.
QR Code Generator
Turn any text or URL into a scannable QR code and download it as a PNG.
Hash Generator
Generate SHA-256, SHA-1, and MD5 hashes from any text.
Base64 Encoder/Decoder
Convert text to Base64 and back, with proper UTF-8 handling.
JSON Formatter
Format, minify, and validate JSON with clear error messages.
Color Palette Generator
Generate harmonious 5-color palettes and lock the ones you like.
Markdown Previewer
Live-preview rendered Markdown side by side with the source.
URL Shortener
Turn a long URL into a short, shareable link.
Pastebin
Paste text or code and share a link, with syntax highlighting.
Regex Tester
Test a regular expression against sample text with live match highlighting.
JWT Decoder
Decode a JWT's header and payload and check its expiration.
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Case Converter
Convert text to camelCase, snake_case, kebab-case, and more, all at once.
Color Contrast Checker
Check WCAG contrast ratio between text and background colors.
URL Encoder/Decoder
Encode and decode URL components like query string values.
CSV ↔ JSON Converter
Convert CSV to JSON and back, with proper quoted-field handling.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Webhook / Request Bin Inspector
Generate a unique URL and inspect every HTTP request sent to it.
File Drop
Upload a file and get a shareable link that auto-expires.
Recent Public Pastes
Browse pastes people have chosen to share publicly.
Feedback & Bug Reports
Report a bug, flag abuse, or suggest a feature.