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URL Decode

Safely decode strings from URL-safe format.

100% Client-Side Local Execution
Input Data
1
Transformed Result
1

What is URL Decode?

This url decode tool reverses percent-encoding, turning a URL-encoded string like name%3DJohn%20Doe back into readable text. It's useful for inspecting query parameters from a link, debugging a webhook payload, or reading an encoded value pulled from server logs. A straightforward url decoder online that handles standard percent-encoding.

Technical Execution

The tool scans the input for %XX sequences and replaces each one with the character represented by that hexadecimal byte value, reassembling multi-byte UTF-8 sequences into their original characters. Any plus signs are typically left as-is unless form-encoding decoding mode is explicitly selected.

Zero Data Storage Guarantee

Encoded strings often come from URLs containing session tokens, search terms, or redirect parameters. Decoding happens entirely in your browser, so the value you're inspecting is never sent to an external server.

How to Use URL Decode (Step-by-Step Guide)

  1. Paste the percent-encoded string into the input field
  2. The tool decodes the %XX sequences back to readable characters
  3. Review the decoded plain text output
  4. Copy the decoded string
  5. Use it wherever you need the original, human-readable value

Frequently Asked Questions (FAQ)

Q: What does percent decode url mean exactly?
A: It means reversing the %XX hexadecimal escape sequences in a URL-encoded string back into their original characters, which is exactly what this tool does.
Q: Is this url decoder online free?
A: Yes, free to use with no account or limit.
Q: Why isn't my plus sign being converted to a space?
A: Standard percent-decoding doesn't touch plus signs — that conversion is specific to form-encoded (application/x-www-form-urlencoded) data, which some tools support as a separate mode.
Q: What happens if I paste text that's already plain, not encoded?
A: Text with no %XX sequences passes through unchanged, since there's nothing to decode.
Q: Can it decode url string with international characters?
A: Yes, multi-byte UTF-8 percent-encoded sequences are correctly reassembled into their original non-ASCII characters.
Q: How is url-decode different from url-encode?
A: This tool reverses percent-encoding back to readable text; url-encode does the opposite, converting plain text into a percent-encoded safe string.
Q: What if the encoded string is malformed, like a stray % not followed by two hex digits?
A: Malformed percent sequences typically cause a decoding error, since a % must always be followed by exactly two valid hex characters.
Q: Can I decode an entire query string with multiple parameters at once?
A: Yes, you can paste the full query string and the %XX sequences throughout will all be decoded, though parameter separators (& and =) are left as literal characters.
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