Encode and decode URLs and components, with a live breakdown of query parameters.
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URL Encoder/Decoder is a free, browser-based tool built for one job: encode and decode urls and components, with a live breakdown of query parameters. It is part of ToolsMonk's developer tools collection, so you can finish the work without downloading software, creating an account, or jumping between multiple websites.
This tool is especially useful for workflows such as encoding a query-string value so special characters don't break the url, decoding an encoded url or parameter to read it during debugging, and building correct links with names, search terms, or symbols in them. Because it runs directly in your browser, you can use it on desktop, tablet, or mobile while keeping the process fast and easy for one-off tasks as well as repeat work.
Searches like url encoder, url decoder, and percent encoding all lead to the same everyday need, and URL Encoder/Decoder answers it with immediate results and an interface simple enough to use on the first try.
| Price | Free, no signup, no paywall, no watermark |
|---|---|
| Works on | Any modern browser: desktop, tablet, and mobile |
| Processing | In your browser, files never leave your device |
| Account required | None |
| Category | Developer Tools |
Paste your text or encoded URL
Choose encode or decode
The converted result appears instantly
Copy it into your link, request, or code
Encode text for safe use in URLs and decode percent-encoded strings back
Handles spaces, symbols, and Unicode characters correctly
Instant conversion as you type
One-click copy of the result
Runs in your browser, your data is never uploaded
Free, with no signup and no rate limit
Encoding a query-string value so special characters don't break the URL
Decoding an encoded URL or parameter to read it during debugging
Building correct links with names, search terms, or symbols in them
Fixing a URL that's failing because of unescaped characters
URL Encoder/Decoder is a free online tool on ToolsMonk with a single focus: encode and decode urls and components, with a live breakdown of query parameters. Whether you're a professional, student, or casual user, it provides instant, accurate results right in your browser without requiring any software installation or account creation.
Privacy and portability drive the design: all processing runs locally in your browser, so your files and data never leave your device. It behaves identically in every modern browser, from a desktop workstation to a phone.
URL Encoder converts text into percent-encoded form that's safe to place in a URL, and decodes it back to readable text. URLs only permit a limited character set, so spaces and symbols must be escaped (a space becomes %20) to avoid breaking the link.
You reach for it whenever a value going into a URL might contain special characters, search terms, names, query-string parameters, anything user-supplied. An unencoded & or # can prematurely terminate or misroute a URL, which is a frequent cause of broken links and dropped parameters.
A key subtlety: encode the values that go inside a URL, not the whole URL. Structural characters like : / ? & must remain literal in the URL skeleton, so wholesale-encoding a complete URL would escape those and break it. Encode the pieces, keep the structure intact.
Unicode is handled via UTF-8 percent-encoding, so non-English characters work, and everything runs in your browser so nothing is uploaded. Pair it with the Base64 Encoder and JWT Decoder for a full request-debugging toolkit.
Encode parameter values, not the whole URL, escaping the : / ? & in the structure will break the link
If a link breaks at an &, # or space, an unencoded value is almost always the cause
Use this alongside the Base64 Encoder when a parameter needs both Base64 and URL-safe encoding
Common questions about this tool, its workflow, and what to expect before you use it.
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Encode and decode URLs and components, with a live breakdown of query parameters.
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