Developer Tools
Format JSON, encode strings, test regex, decode JWTs, and other daily dev helpers.
16 tools in this category.
JSON Formatter
Pretty print JSON with indentation and error hints.
JSON Minifier
Remove whitespace to shrink API payloads.
XML Formatter
Indent messy XML configs and feeds.
YAML to JSON
Convert YAML snippets into JSON objects.
TOML to JSON
Parse TOML configuration into JSON for sharing.
CSS Minifier
Strip comments and extra spaces from stylesheets.
Base64 Encode / Decode
Encode or decode Base64 text safely in-browser.
URL Encode / Decode
Escape query parameters for HTTP requests.
HTML Entity Encoder
Escape HTML to prevent broken templates.
Hash Generator
Create SHA-256 and MD5 digests from strings.
UUID Generator
Generate random UUID v4 identifiers in bulk.
Regex Tester
Test JavaScript regular expressions with highlights.
JWT Decoder
Inspect JWT headers and payloads (unsigned check).
Unix Timestamp Converter
Convert seconds or milliseconds to local time.
Cron Expression Helper
Explain common five-field cron schedules in plain English.
Text Diff Checker
Compare two text blobs line by line for quick reviews.