Developer Tools

JSON Formatter

Beautify and validate JSON with configurable indentation and bracket styles.

HTML Formatter

Prettify HTML markup with proper indentation for better readability.

SQL Formatter

Format SQL queries with proper indentation and keyword capitalisation.

XML Formatter

Beautify and pretty-print XML documents with consistent indentation.

Markdown Previewer

Live Markdown editor with GFM support — preview rendered HTML as you type.

Base64

Encode text or binary data to Base64 and decode it back.

URL Encoder / Decoder

Encode and decode URL components and query string parameters.

JWT Decoder

Decode and inspect JSON Web Token headers and payloads.

YAML ↔ JSON

Convert between YAML and JSON formats instantly.

HTML → Markdown

Convert HTML to clean Markdown. Paste HTML or upload a .html file.

JSON → TypeScript

Generate TypeScript interfaces from JSON with nested objects, arrays, and union types.

Color Converter

Convert colors between HEX, RGB, and HSL formats with a live preview swatch.

CSV ↔ JSON

Convert CSV to JSON and JSON to CSV with custom delimiters and header options.

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal with BigInt precision.

String Case Converter

Convert between camelCase, PascalCase, snake_case, kebab-case, and SCREAMING_SNAKE.

Regex Tester

Test regular expressions against text with live match highlighting.

Cron Explainer

Convert cron expressions to plain English with a field-by-field breakdown.

Hash Generator

Generate SHA-1 through SHA-512 hashes entirely in your browser.

Text Diff

Compare two text blocks and highlight every addition and removal.

UUID / ULID Generator

Generate UUID v4 and ULID identifiers in configurable batch sizes.

Timestamp Converter

Convert Unix timestamps to readable dates and back. Supports seconds, ms, and ISO 8601.

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, or words.

Chmod Calculator

Visual permission selector outputting numeric and symbolic chmod notation.

Markdown Table Generator

Visual table editor that outputs Markdown and HTML table syntax.

JSON Path Evaluator

Test JSONPath expressions against JSON data with live results.

JSON Diff Viewer

Compare two JSON structures and see every added, removed, and changed key.