Developer tools that respect your data

Format, validate, minify, and pretty-print JSON data instantly.

Build, test, and debug regular expressions with real-time matching.

Format, validate, and pretty-print XML documents.

Format and beautify SQL queries with syntax highlighting.

Format, beautify, or minify CSS stylesheets.

Format, beautify, or minify HTML markup.

Format, beautify, or minify JavaScript code.

Compare two texts side-by-side and highlight differences.

Write Markdown with live preview and export to HTML.

Look up any HTTP status code and what it actually means.

Compare two JSON documents structurally, ignoring key order.

Count words, characters, sentences and estimate reading time.

Encode text to Base64 or decode Base64 back to plain text.

Generate SHA-1, SHA-256, SHA-384, SHA-512 and other hash digests.

Decode JWT tokens to inspect header, payload, and signature.

Encode or decode URLs and query strings with percent-encoding.

Encode or decode HTML entities and special characters.

Encrypt and decrypt text with AES-256-GCM and a password.

Build and decode HTTP Basic Authorization headers.

Generate UUID v4/v7 or short NanoID strings in bulk.

Generate QR codes from text, URLs, or contact information.

Generate strong, random passwords with customizable rules.

Generate placeholder text for designs and mockups.

Build and validate cron expressions with human-readable explanations.

Generate RSA or elliptic-curve key pairs in PEM and JWK format.

Generate and verify time-based one-time passwords from a secret.

Pick colors and convert between HEX, RGB, HSL, Tailwind CSS and more.

Convert between Unix timestamps and human-readable dates.

Convert YAML to JSON and JSON to YAML bidirectionally.

Search and convert Unicode characters, code points, and escapes.

Convert any text into a clean, URL-safe slug.

Convert numbers between binary, octal, decimal, and hex.

Convert CSV data to JSON array and JSON back to CSV.

Convert text between camelCase, snake_case, kebab-case, and more.

Generate TypeScript interfaces, Go structs or Python dataclasses from JSON.

Calculate network, broadcast, host range and mask from any CIDR block.

Convert a date and time between any world timezones at once.

Convert between octal, symbolic and checkbox file permissions.

Find the MIME type for any file extension, and vice versa.

Break a user-agent string into browser, engine, OS and device.

Convert a docker run command into a docker-compose service.

Convert between common units of length, weight, temperature, and more.