About the URL Encoder / Decoder
URL Encoder / Decoder is a free browser-based developer tool from Convertify. Percent-encode special characters in a URL or query string, or decode an already-encoded URL back to readable text. Everything runs instantly with no file upload, no account, and no usage limit.
Frequently Asked Questions
What's the difference between the two encoding modes?
"Component" mode escapes every special character, including / and &, so it's safe to drop a value inside a query string parameter. "Full URI" mode leaves URL structure characters like :/?# intact, so it's for encoding an entire URL, not a single value going inside one.
Why does my decoded URL look different from what I typed?
If you decode using the wrong mode for what was originally encoded, certain characters won't be restored correctly — match the mode to how the string was originally encoded.
Is this the same as encoding a URL for HTML output?
No — percent-encoding (this tool) and HTML entity encoding (for & < > inside HTML) solve different problems. Use this tool for the URL itself, not for embedding it safely inside an HTML page.
Does anything get sent to a server?
No — encoding and decoding both run entirely in your browser using built-in JavaScript functions.
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