URL Encoder / Decoder

Percent-encode and decode URLs and query strings, in whole-URL or single-component mode — instant and private in your browser.

This URL encoder percent-encodes and decodes URLs and query strings, both ways. Use it to URL-encode a query value, decode a percent-encoded string, or escape special characters like spaces and ampersands so a link works. It offers a whole-URL mode and a single-component mode, so separators are kept or encoded depending on what you need. It runs in your browser.

Plain text
Encoded

How it works

  1. 1

    Pick encode or decode

    Choose whether to encode raw text or decode a percent-encoded string.

  2. 2

    Choose the scope

    Encode a full URL (keeping separators) or a single component (encoding everything).

  3. 3

    Copy the result

    Copy the encoded or decoded string straight into your code or address bar.

Instant & 100% private — nothing is uploaded

Everything runs locally in your browser. Your code, text and files are processed on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and nothing is ever stored or logged.

Frequently asked questions

What is the difference between component and full-URL encoding?
Component mode (encodeURIComponent) encodes reserved characters like &, = and ? — use it for query values. Full-URL mode (encodeURI) preserves those separators so the URL still works.
Does it handle spaces and special characters?
Yes. Spaces become %20, and reserved or non-ASCII characters are percent-encoded as UTF-8, exactly as browsers and servers expect.
Why does decoding fail sometimes?
A malformed percent-sequence (for example a stray % not followed by two hex digits) is invalid; the tool flags it so you can correct the input.

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