URL Encoder and Decoder
Paste text to percent-encode it for a URL, escape a full link while keeping its structure, or decode an encoded string back to plain text. Everything runs in your browser.
How to encode or decode a URL
- Paste your text or URL into the box.
- Pick a mode: Component, Full URL or Decode.
- Copy the encoded or decoded result.
Examples
Encode a query value
name=Ada Lovelace&dept=R&D
name%3DAda%20Lovelace%26dept%3DR%26D
Decode an encoded value
caf%C3%A9%20%26%20cr%C3%A8me
café & crème
Frequently asked questions
What is the difference between Component and Full URL?
Component uses encodeURIComponent and escapes reserved characters like / ? : & = so a value is safe inside a query string. Full URL uses encodeURI and leaves those structural characters intact so a whole link still works.
When should I use Component mode?
Use Component for a single piece of data going into a URL, such as a query parameter value, a path segment or a form field, where every reserved character must be escaped.
Why does decoding fail with an error?
Decoding throws when the input contains a malformed percent escape, for example a stray % or an incomplete byte sequence like %E0%A4%A. Fix or remove the broken escape and try again.
Does a space become %20 or a plus sign?
This tool produces %20 for spaces, which is correct for paths and is also accepted in query strings. The plus sign is only used by the older application/x-www-form-urlencoded form encoding.
Is my text private?
Yes. All encoding and decoding happens locally in your browser and nothing is uploaded.
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