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URL Encoder & Decoder

Percent-encode a link or one value, decode one back, and read what a long link carries.

FreeRuns in your browser

About the URL Encoder & Decoder

Encode a link so spaces and Bangla text survive being pasted into a message, or decode one that arrived full of %20 and %E0. Whole links and single values are handled differently, as they should be, and the query string is broken out into rows so you can see what a long tracking link is actually carrying.

How to use it

  1. 1Choose Encode or Decode.
  2. 2Say whether this is a whole link or one value from it.
  3. 3Paste it in, then copy the result.

Questions

What is the difference between a whole link and one value?

A whole link keeps the characters that give it structure, the : / ? & and #, so it still works. One value escapes those too, which is what you want when the value itself contains an & or a ? that would otherwise be read as part of the link.

Why does my decoded text show strange characters?

Percent-encoding carries bytes, not letters. If the text was encoded in something other than UTF-8, the bytes decode to different characters. Everything encoded by this page, and by browsers today, is UTF-8.

Is my text uploaded or stored?

No. The tool runs in this browser tab. What you paste is never sent to KuponGuru, and it is gone when you close the tab.

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