Formatters, encoders, diffs, and code helpers.
Decode and inspect JSON Web Token headers and payloads without verifying signatures.
Generate signed JSON Web Tokens with custom payloads and HS256 secrets.
Format, minify, and validate JSON with syntax error highlighting.
Format and validate YAML documents with clear error messages.
Convert between YAML and JSON formats bidirectionally.
Encode text to Base64 or decode Base64 strings to plain text.
Test regular expressions with live match highlighting and capture groups.
Generate random UUID v4 identifiers in bulk.
Generate MD5, SHA-256, and SHA-512 hashes from text input.
Generate secure random passwords with customizable length and character sets.
Convert between Unix timestamps and human-readable dates.
Write Markdown and preview rendered HTML in real time.
Compare two text blocks and highlight additions and deletions.
Encode and decode URL components and query strings.
Convert colors between HEX, RGB, and HSL formats.
Count words, characters, lines, and reading time for any text.
Convert text between camelCase, snake_case, kebab-case, PascalCase, and more.
Generate URL-friendly slugs from titles and text.
Format, minify, and validate XML locally in your browser.
Parse CSV, inspect quoted fields, and view data in an accessible table.
Beautify or minify practical SQL queries without sending them anywhere.
Edit HTML and preview it instantly in an isolated sandboxed frame.
Generate up to 500 cryptographically random UUIDs at once.
Generate configurable placeholder paragraphs, sentences, or words.
Compute SHA-256 and SHA-1 checksums for a local file.
Remove comments and unnecessary whitespace from typical CSS.
Conservatively remove common JavaScript comments and whitespace.
Beautify, validate, and minify HTML entirely in your browser.
Encode and decode JSON escapes, HTML entities, Unicode escapes, and URL components.
Build regular expressions with guided controls and preview live sample matches.
Infer a Draft 2020-12 JSON Schema recursively from sample JSON.
Format or minify GraphQL documents with brace and bracket validation.
Inspect an HTTP status, headers, and formatted JSON, XML, or text response body.