Pretty-print and beautify JSON.

Compress JSON to a single line.

Validate JSON and get precise error locations.

Compare two JSON objects and find differences structurally or line-by-line.

Interactive collapsible tree viewer for JSON documents with search and path copying.

Encode text to Base64.

Decode Base64 back to text.

Encode strings for use in URLs.

Decode URL-encoded strings.

Escape HTML entities.

Unescape HTML entities.

Convert text to hexadecimal.

Convert hexadecimal to text.

Compute MD5, SHA-1, SHA-256 and SHA-512 hashes.

Decode and inspect JSON Web Tokens.

Generate strong, secure passwords.

Estimate password strength and entropy.

Generate v4 UUIDs in bulk.

Generate placeholder Lorem Ipsum text.

Generate random strings with custom charsets.

Generate random numbers in a range.

Generate dummy PDF files of specific sizes (1MB, 2MB, etc.) for testing.

camelCase, PascalCase, snake_case, kebab-case & more.

Sort, reverse, dedupe and clean lines.

Count words, characters and lines.

Convert between Unix timestamps and dates.

Create URL-friendly slugs from any text.

Test regular expressions with live matches.

Convert between HEX, RGB and HSL.

Check WCAG color contrast ratios.

Live preview of Markdown as HTML.

Compress and optimize JPEG, PNG and WebP images client-side.

Convert images between WebP, PNG, JPEG, AVIF, HEIC, TIFF, BMP, SVG, and GIF formats client-side.

Create animated GIFs from multiple images, video files, or custom canvas animations client-side.

View, explore, and query SQLite databases entirely in your browser client-side.