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URL Encoder / Decoder

Encode text into URL-safe percent encoding, or decode percent-encoded strings back into readable text.

Understand URL percent encoding

Input text

Output URL encoding

Using This Tool: Guide & Notes Show guide

URL encoding rewrites reserved, unsafe, or ambiguous characters as percent-coded byte values so text can travel safely inside links and query strings.

How to use it

  • Choose Encode to turn ordinary text into URL-safe percent encoding, or Decode to turn percent escapes back into readable text.
  • Use URL component mode for search terms, query values, form values, and pasted text.
  • Use Full URL mode only when the input is already a complete URL and you want to keep URL structure characters readable.
  • Use Load example to compare the handling of spaces, ampersands, question marks, equals signs, and non-ASCII characters.

Options and settings

  • Encode spaces as + uses form/query-string style spacing instead of %20, and is available only in component mode.
  • Decode + as space treats plus signs as spaces when decoding form-style query text.
  • Uppercase percent escapes normalises values such as %3f to %3F.
  • Trim leading/trailing whitespace removes accidental outer spaces before processing.

Notes

  • URL encoding is not encryption. Anyone can decode it.
  • If decoding fails, check for a bare % sign, incomplete escapes such as %2, or malformed UTF-8 byte sequences.
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Related Article

URL Encoding: How the Web Makes Text Safe for Links

Why spaces become %20, why & turns into %26, and how percent encoding lets ordinary text survive inside web addresses without breaking URL structure.

Read the article
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A note from the team

We build these tools because we love cryptography, encoding, and making difficult ideas easier to explore. If they've helped you, even a small coffee means the world to the project. Thank you!

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