Encode text for safe use in a URL query string (spaces, ampersands, and other reserved characters become percent-escapes), or decode a percent-encoded string back to readable text.
Describe what you need in plain English and automatically build, explain, test, and optimize regex, JSON, JWT, cron, and hash workflows with zero regex friction. This app requires JavaScript to run interactively — enable JavaScript for the full experience, or explore what each tool does below.