A focused toolkit for everyday development.

Convert cURL to HTTP client code

Convert between JSON arrays and CSV

Convert between YAML and JSON

Convert between TOML config and JSON

Convert between XML documents and JSON

Convert HEX/RGB/HSL and check WCAG ratios

Convert bases from 2 to 36

Convert dates and Unix time

Inspect cron schedules and next runs

Encode and decode UTF-8 text

Encode and decode URL components

Escape HTML special characters

Verify JWT signatures and standard claims

Sign messages with a shared secret

Generate and inspect Basic auth headers

Escape strings for JSON, JS, SQL and regex

Format and validate JSON

Format SQL queries

Format XML documents

Normalise and re-indent YAML

Re-indent CSS blocks for reading

Indent HTML markup

Generate UUID v4 values

Generate secure passwords

Generate Lorem Ipsum and Japanese filler text

Calculate SHA hashes

Build X search queries and jump to the results

Generate a QR code from text

Inspect matches and capture groups

Query and validate JSON data

Run CSS selectors and XPath against HTML

Check which paths a glob pattern matches

Analyze text and convert its case

Compare differences between two texts

Sort, deduplicate and wrap lines in one pass

Safely preview Markdown

Convert images and Data URLs

Strip cruft and emit a CSS-ready data URI

Convert to WebP/AVIF and shrink the file

Inspect capture and location data, then strip it

Calculate IPv4 network ranges

Inspect URL components and query parameters

Inspect a domain and web page in one request

Inspect browser network details