Tool StudioEncode or decode URLs and query parameters
Component: encodes everything except A-Z a-z 0-9 - _ . ! ~ * ' ( ) — use for a single query param or path segment.
Encode text into percent-encoded URL format, or decode it back. Supports both component encoding (for a single query parameter) and full-URL encoding (which preserves URL structure characters).
Choose encode or decode
Pick the direction you need.
Choose the scope
Component for a single value, or full URL to preserve structure.
Paste your text
Get the result instantly, and copy it with one click.
What's the difference between component and full URL encoding?
Component encoding (encodeURIComponent) escapes everything except letters, numbers, and a few safe symbols — use it for a single query parameter. Full URL encoding (encodeURI) leaves URL-structural characters like : / ? # & alone — use it for an entire URL.
Why does decoding sometimes fail?
The input isn't valid percent-encoded text — for example it contains a lone % not followed by two hex digits.
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