All tools

The URL toolkit.

Every tool here runs entirely in your browser. No upload, no signup. Your input never leaves the page. Pick a category to find what you need.

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Query String Parser

Split a URL's query string into key/value pairs and decode each one.
⊕

URL Parser

Inspect every part of a URL: scheme, host, path, query, fragment.
▤

Form Encoder

Build application/x-www-form-urlencoded bodies from key/value input.
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Path Encoder

Slash-aware path encoding that preserves URL structure.
✓

URL Validator

Check whether a string is a valid URL and explain why if it isn't.
⌬

URL Builder

Construct a clean URL from parts — automatic encoding where needed.
★

Sample Library

Real-world examples: query strings, percent-encoded paths, edge cases.
About this page

Written and maintained by the urlencodedecode.com team. Every technical claim on this page is verified against primary sources — the RFCs (3986, 3629, 4648, 7578), the WHATWG URL Standard, and official vendor or language documentation — rather than second-hand summaries. When a source contradicts a common assumption, we follow the source and note the discrepancy. Corrections: contactus@urlencodedecode.com.