Tool Catalog

Formatting tools tidy and standardize structured text. Paste minified or messy JSON, SQL, HTML, CSS or Markdown and get consistently indented, validated output that's easier to read, review and diff.

• JSON Formatter

  Format, validate and minify JSON — live.

• SQL Formatter

  Beautify SQL queries with keyword casing.

• HTML Formatter

  Beautify and indent HTML.

• CSS Formatter

  Beautify or minify CSS.

• Markdown Editor

  Write Markdown with live preview and toolbar.

• JSON Validator

  Validate JSON and pinpoint errors.

Encoding tools translate text between transport-safe representations. Convert to and from Base64, percent-encoded URLs and HTML entities to safely move data through APIs, markup and query strings.

• Base64 Encode / Decode

  Encode or decode Base64 with Unicode support.

• URL Encode / Decode

  Percent-encode or decode URLs.

• HTML Entity Encoder

  Encode or decode HTML entities.

Converter tools translate values between common formats — timestamps, number bases, color spaces, text casing, and structured data like JSON, YAML, CSV, TypeScript and GraphQL — so you can move between representations without manual rewriting.

• Timestamp Converter

  Convert between Unix timestamps and dates.

• Number Base Converter

  Convert between binary, octal, decimal and hex.

• Color Converter

  Convert between HEX, RGB, HSL and HSV.

• Case Converter

  Convert text between casing styles.

• JSON → TypeScript

  Generate TypeScript interfaces from JSON.

• JSON → GraphQL

  Generate GraphQL types from JSON.

• YAML ↔ JSON

  Convert between YAML and JSON.

• CSV → JSON

  Convert CSV data to a JSON array.

Generator tools produce ready-to-use values on demand — UUIDs, strong passwords, placeholder text, cryptographic hashes and cron expressions — using your browser's secure random source, with no data leaving your device.

• UUID Generator

  Generate RFC4122 v4 UUIDs in bulk.

• Password Generator

  Generate strong random passwords.

• Lorem Ipsum Generator

  Generate placeholder text.

• Hash Generator

  Generate SHA-1/256/384/512 checksums.

• Cron Generator

  Build and preview cron schedules.

• Text Generator

  Generate placeholder text in multiple languages.

Inspector tools help you examine and debug — decode JWT claims, test regular expressions against sample text, look up HTTP status codes, diff two blocks of text, and send HTTP requests to inspect API responses.

• JWT Decoder

  Decode and inspect JSON Web Tokens.

• Regex Tester

  Test regular expressions and view matches.

• HTTP Status Codes

  Reference for HTTP response status codes.

• Text Diff

  Compare two blocks of text line by line.

• API Tester

  Send HTTP requests and inspect responses.