Developer tools
that just work.

Encode & decode Base64 strings

Percent-encode URLs and strings

Escape & unescape HTML

Decode and inspect JWT tokens

Convert to/from Unicode escapes

Prettify & minify JSON

Format SQL queries

Prettify XML documents

Validate YAML, detect CI/K8s/Compose

Format & minify CSS

Generate v4 UUIDs instantly

Cryptographically secure passwords

Placeholder text generator

MD5, SHA-1, SHA-256, SHA-512

Collision-resistant & sortable IDs

Convert between JSON and YAML

Tabular data conversion

Unix timestamp ↔ human date

Hex, binary, octal, decimal

HEX ↔ RGB ↔ HSL ↔ OKLCH

Compare two texts side by side

Words, chars, sentences, reading time

camelCase, snake_case, kebab-case

URL-safe slug from any text

Test regex with live matching

Viewport, DPR, media queries

Query DNS records (A, MX, TXT…)

Inspect response headers of any URL

Verify SSL certificate details

Domain & IP registration lookup

What your browser reveals about you