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Convert text to URL-safe percent-encoding and decode encoded strings back to plain text.
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Paste plain text in the Encode panel to generate URL-safe output.
Paste an encoded string in the Decode panel to convert it back to readable text.
Copy either result for use in URLs, API requests, or troubleshooting.
Preparing query parameter values before appending them to URLs
Checking encoded redirect URLs from ads, analytics, or email links
Debugging encoded payload values in logs and API requests
Validating output against encodeURIComponent/decodeURIComponent behavior
URL encoding (percent-encoding) converts characters that are unsafe in URLs into `%`-prefixed hexadecimal values. For example, a space becomes `%20`. This is required when sending user input through query strings or URL components.
In JavaScript this is commonly handled with `encodeURIComponent` and `decodeURIComponent`. This tool provides the same workflow in a visual UI for quick checks without opening a console.
Encode individual parameter values, not entire URLs, unless you intentionally need a fully encoded string.
A frequent mistake is double-encoding values. If you see `%2520`, the value was likely encoded twice. Decode once, verify the original string, then re-encode only where needed.
Marketers and SEO teams often use URL encoding for campaign parameters and redirect chains. This tool helps verify UTM values and destination links before publishing.
Convert plain text to percent-encoding and decode it back instantly.