Utilities

Developer

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Tools

Utilities

Developer

JSON Formatter

Format and validate JSON locally without sending its contents anywhere.

YAML Formatter

Format and validate YAML locally with precise line-aware errors.

XML Formatter

Beautify, minify, and validate XML entirely in your browser.

SQL Formatter

Format SQL for common dialects with flexible keyword and indentation options.

JSON โ†” CSV Converter

Convert arrays of JSON objects and correctly quoted CSV in either direction.

YAML โ†” JSON Converter

Convert YAML and JSON in either direction with validation before output.

Regex Tester

Test JavaScript regular expressions, groups, flags, and replacements live.

Markdown Preview

Write Markdown and view sanitized rendered HTML side by side.

Markdown to HTML

Convert Markdown to sanitized HTML locally and download the result.

HTML to Markdown

Convert HTML headings, links, tables, lists, and code blocks to Markdown.

Aspect Ratio Calculator

Calculate matching dimensions from common or custom aspect ratios.

Base64 Encoder/Decoder

Encode UTF-8 text or files and decode standard or URL-safe Base64.

URL Encoder/Decoder

Encode or decode complete URLs and individual URL components.

HTML Entity Encoder/Decoder

Safely encode reserved HTML characters or decode named and numeric entities.

Hash Generator

Generate SHA-1, SHA-256, SHA-384 or SHA-512 hashes for text and local files.

JWT Decoder

Decode JWT headers and payloads and show readable timestamp claims.

Unix Timestamp Converter

Convert epoch seconds or milliseconds to ISO and local dates and back.

Number Base Converter

Convert arbitrarily large integers between bases 2 and 36.

Email Validator

Check email syntax and flag common domain typing mistakes locally.

JSON Validator

Validate JSON and inspect its byte size, nesting depth and key count.

HTML Minifier

Minify HTML locally while preserving valid markup and protected content.

CSS Minifier

Optimize CSS locally and see exactly how many bytes you save.

JavaScript Minifier

Minify JavaScript with lazy-loaded Terser in a local Web Worker.

Color Converter

Convert HEX, RGB, HSL and HSV colors with a synchronized live preview.

CSS Gradient Generator

Design linear, radial and conic gradients with editable color stops.