Development / Converters

URL Encoder / Decoder

v1.0.0
4.7/5 (634 votes)
Certified dolf.in tool

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Guide & Explanations

Online URL Encoder / Decoder

The URL encoder and decoder is an essential tool for web developers, API testers and SEO professionals. It handles special characters according to RFC 3986 standards and offers three distinct working modes.

Why encode a URL?

URLs can only contain certain ASCII characters. Spaces, accented characters, Asian characters and special symbols must be transformed into %XX sequences (percent-encoding) to be transmitted correctly over HTTP.

4 encoding methods

  • encodeURIComponent: encodes everything except unreserved characters. Ideal for parameter values
  • encodeURI: preserves URL separators (/ ? # & = @). Ideal for complete URLs
  • HTML form: replaces spaces with + (application/x-www-form-urlencoded standard)
  • Custom: precisely choose which characters to preserve

Additional tools

  • URL Parser: breaks down a URL into its components (protocol, host, port, path, parameters, fragment) and lists all query string parameters in a table
  • URL Builder: assemble a clean URL from its components, with dynamic parameter addition and automatic encoding

Frequently Asked Questions

Q: Is URL Encoder / Decoder free to use?

R: Yes, the URL Encoder / Decoder utility is 100% free. All tools on Dolf.in are accessible at no cost and without intrusive ads.

Q: Is my data secure?

R: Absolutely. Dolf.in uses a 'Serverless' approach: your data is processed locally in your browser and is never sent to our servers.

Q: Do I need to install any software?

R: No, no download or installation is required. Everything works directly in your web browser.

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UUID: url-encoder-decoder-u1r2l3e4n5c6d7e8 LICENSE: MIT
DEVELOPED BY DOLF.IN