Base64 Encode/Decode
developer
Unicode-safe Base64 encode/decode for text and files locally.
#developer
Explore 11 wowTools utilities tagged “developer”. Each tool is built to run in your browser whenever possible.
Tools
Cron Explainer
developer
Turn cron expressions into readable schedules.
Diff Checker
text
Line-level text diff with inline and side-by-side views.
JSON Formatter
json
Format, validate, and minify JSON locally in your browser.
JSON Minifier
json
Minify JSON locally into a compact single-line string.
JSON Validator
json
Validate JSON locally with clear syntax error messages.
JSON YAML Converter
json
Convert JSON and YAML both ways in your browser.
Markdown Preview
text
Live GFM preview with sanitized, XSS-safe rendering.
Query String Parser
developer
Parse and build URL query strings safely, client-side.
Regex Tester
developer
Test regex patterns with flags, highlights, and safe timeout protection.
URL Encode/Decode
developer
URL percent-encoding with component and URI modes locally.