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.

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