Developer tools
Format, encode and generate, all locally. 19 free tools, all running in your browser.
JSON formatter
Validate, prettify and minify JSON.
Base64 encoder / decoder
Encode text to Base64 and back, UTF-8 safe.
URL encoder / decoder
Percent-encode text for URLs, or decode it.
UUID generator
Random v4 and time-ordered v7 UUIDs, in bulk.
Hash generator
SHA-1, SHA-256, SHA-384 and SHA-512 of any text.
Password generator
Strong passwords, created on your device.
JWT decoder
Read the header and claims of a JSON Web Token.
Regex tester
Test a regular expression and see the matches.
Cron expression helper
Explain a cron schedule and list the next runs.
CSV to JSON
Turn CSV into JSON and JSON back into CSV.
IP subnet calculator
Network, broadcast, mask and host range of a subnet.
YAML to JSON
Convert YAML to JSON and JSON to YAML.
CSS minifier
Make CSS smaller, or format it for reading.
HTML entity encoder
Escape text for HTML, or decode entities.
Markdown to HTML
Convert Markdown to HTML with a live preview.
SQL formatter
Format SQL queries for reading.
JSON to TypeScript
TypeScript interfaces from a JSON sample.
chmod calculator
Unix file permissions in numbers and letters.
HTTP status codes
What every HTTP status code means.
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