FREE TOOL · ON YOUR DEVICE
Encode and decode URLs for free
Prepare a URL component, a complete address or one query value. Each context treats separators differently: choose before converting. Supplied links are never opened or visited.
- Free with an account
- Three contexts
- No link visits
- Paste input
- Choose context
- Review results
HOW TO USE IT
Three steps.
Paste input
Enter up to 1 MiB text and choose encoding or decoding.
Choose context
Component mode escapes separators. Full URL uses encodeURI/decodeURI. Query value interprets + as a space when decoding.
Review results
Check spaces, + signs and reserved characters before copying or downloading TXT.
NEXT STEP
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Encode and decode URL: common questions
How is a URL different from a component?
A full URL preserves delimiters such as /, ? and #. A component encodes those symbols so they belong to the value.
Does + always mean a space?
Only in query value mode. In component or URL mode, + remains literal.
Does it open or repair links?
No. It only encodes text. Invalid percent sequences or UTF-8 cause an error; destination availability is not checked.
Is my text sent to a server?
No. Everything is calculated in your browser as you type; the text is not sent to Cocuyo or any third party and is not stored. You can check it in your browser’s network tools: your file is not sent.
Is it really free?
Yes. You can try it before signing up; to keep using it, we ask for a free account, with no subscription. It uses no credits and does not count toward your 30 welcome uses: it has no usage cap.
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