What is URL Encoder / Decoder?
URLs can only contain a limited set of characters, so spaces, accents and symbols must be percent-encoded — turning a space into %20, for example. A URL encoder and decoder converts text into this safe form and decodes encoded URLs back into readable text.
The tool offers both full-URL encoding, which preserves structural characters like slashes and colons, and component encoding, which escapes everything for use inside a single query parameter.
How to Use the URL Encoder / Decoder
- Paste a URL or text into the input box.
- Click Encode for a whole URL, or Encode Component for a parameter value.
- Click Decode to turn an encoded string back into readable text.
- Copy the result to use in links or code.
Features of Our URL Encoder / Decoder
- Full URL and single-component encoding modes
- Accurate percent-encoding of special characters
- Reliable decoding with error handling
- Preserves URL structure when appropriate
- Handles international characters
- Instant and fully offline
Benefits & Use Cases
Developers build query strings, share links with special characters, and debug encoded parameters. Marketers create tracking URLs, and anyone sharing a link with spaces or symbols benefits from proper encoding so the link works everywhere.
Everything is processed in your browser, so even private URLs and parameters stay on your device.
Converting data accurately is easy to get wrong by hand, and a single mistake can ripple through everything downstream. The URL Encoder / Decoder removes that risk by applying the correct rules every time, so the output you copy is dependable. Because it sits alongside our other converters, you can chain conversions and handle mixed data formats in one place rather than juggling several different websites.
Best of all, our URL Encoder / Decoder runs entirely inside your web browser. Nothing you enter is uploaded or stored on a server, so your data stays private and results appear instantly. It is completely free, requires no sign-up or installation, and it works beautifully on desktop, tablet and mobile alike. The interface supports both light and dark themes and is built with accessibility in mind, so it is comfortable to use for everyone. Bookmark this page and come back to the URL Encoder / Decoder as often as you need — it will always be here, ready and free to use.
Tips for Getting the Best Results
For the most accurate conversion, double-check that your input is formatted the way the URL Encoder / Decoder expects before you run it. Small details — an extra space, a missing separator, or the wrong notation — are the usual cause of unexpected output, and correcting them takes only a moment. When you are working with a large batch of data, convert a small sample first to confirm the result looks right, then process the rest with confidence.
Keep in mind that conversion is only as good as the source data you provide. If your figures or encodings need to be exact for a downstream system, verify a couple of results by hand the first time you use the URL Encoder / Decoder. Once you trust the output, you can rely on it for repeated use, knowing every conversion follows the same consistent, standards-based rules on every run.
FAQ about URL Encoder / Decoder
What is the difference between Encode and Encode Component?
Encode keeps URL structure characters like : / ? intact, while Encode Component escapes them too, which is correct for a value placed inside a query parameter.
Why does a space become %20?
Spaces are not allowed in URLs, so they are replaced with their percent-encoded form %20 (or sometimes a plus sign in query strings).
Can it decode any encoded URL?
Yes, as long as it is validly percent-encoded. Malformed sequences will show an error so you can fix the input.
Does it support non-English characters?
Yes. International characters are encoded using UTF-8 percent-encoding and decoded back accurately.