URL Encode / Decode
Encode characters and symbols into special codes, or decode URL-encoded strings
Features
Supports three encoding methods
Choose encodeURIComponent and others by purpose
Both encoding and decoding
Restore encoded strings back to their original characters
PHP urlencode compatible
Converts spaces to + to reproduce legacy behavior
Batch-convert multiple lines at once
Encode space-separated words individually
How to use
Switch the conversion direction
Select encode or decode with the tabs
Specify the conversion mode
Choose from urlencode, encodeURIComponent, or encodeURI by purpose
Enter the target string
Paste the string to convert into the text field, or load it from a sample
Check and copy the result
The result appears instantly after pressing, ready to copy and use
Use cases
Building query parameters
Convert values containing Japanese or symbols into a form safe to embed in a URL
Decoding encoded URLs
Turn a URL full of percent signs back into readable characters to check its contents
Formatting API request values
Encode parameters sent to an API to avoid communication errors
Investigating garbled URLs
Pinpoint unexpected conversions to help isolate issues
Safety and privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
Encoding and decoding is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
Input strings and conversion results and input suggestions are not stored on the server.
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Most tools are designed securely and do not transmit data.