URL Encode / Decode
Encode or decode URL text — free, unlimited, and entirely private. Nothing leaves your browser.
Parse a full URL
How it works
URLs can only safely contain a limited set of characters — letters, digits, and a handful of symbols. Everything else (spaces, punctuation, non-Latin text) needs to be percent-encoded before it can go into a query string or path segment. This tool encodes and decodes that percent-encoding directly inside your browser tab using JavaScript's built-in encodeURIComponent/decodeURIComponent, no server involved.
Encoding always produces plain ASCII output regardless of the input script, and decoding converts it back exactly. If decoding fails, it usually means the input contains a stray % not followed by two hex digits — a sign the text wasn't actually URL-encoded to begin with.
The parser below does the opposite of encoding: paste a full URL and it splits it into protocol, host, path, and hash using the browser's built-in URL API, then lists every query parameter as a decoded key/value pair in a table — no more manually splitting on & and = and decoding each piece by hand.
Limitations
The encode/decode tool works on individual URL components (query values, path segments) — it does not parse a full URL structure; use the parser section for that. The parser requires a complete URL including a protocol (https://) — a bare path or domain without a scheme won't parse. For very large inputs, your browser's memory is the only real limit — there is no artificial cap.
FAQ
- Is this URL encoder really free?
- Yes — completely free, with no size limits and no account required. Everything runs in your browser, so there's no server cost to recoup.
- What's the difference between this and full-URL encoding?
- This encodes text as a URL component — safe to drop into a query string value or path segment, matching JavaScript's encodeURIComponent. It also encodes characters like / and & that a full-URL encoder would leave alone, since those are often meaningful inside a single component.
- Is my data uploaded anywhere?
- No — encoding and decoding both happen locally in your browser using built-in JavaScript APIs. Nothing you paste here is ever sent over the network, which makes it safe to use with production data.
- Why does decoding sometimes fail?
- Decoding fails when the input contains a malformed %-escape sequence — usually a sign the text wasn't actually URL-encoded, or was double-encoded.
- How is the URL parser different from the encode/decode tool above?
- The encode/decode tool works on a single piece of text (like one query value), converting it to and from percent-encoding. The parser works on a whole, complete URL, splitting it into protocol, host, path, and hash, and listing every query parameter as an already-decoded key/value pair — no manual splitting required.