URL Encoder & Decoder

Encode or decode text for URLs, query strings, and URI components.

Decoded Text
Encoded Text
Decoded Length
0
Encoded Length
0
Encoded % Chars
0
Status
Ready
This uses encodeURIComponent and decodeURIComponent. It is best for URL components, query values, and text that needs percent-encoding.

About this tool

URL Codec helps developers, marketers, analysts, and support teams encode or decode URL strings, query values, redirect targets, and URI components. Use it for percent-encoding spaces and symbols, reading encoded tracking links, debugging OAuth callback URLs, and cleaning query parameters before sharing a link.

Use cases

  • Decode an encoded query string from a support ticket so product, campaign, and search parameters are readable before triage.
  • Encode a redirect_uri, callback URL, or nested return path before adding it to OAuth, SSO, or webhook configuration.
  • Check whether spaces, ampersands, equals signs, hashes, and non-ASCII characters were encoded correctly in a marketing or analytics URL.
  • Convert only a URI component when you need a safe query value without accidentally encoding the entire scheme, host, or slash-separated path.

FAQ

What is URL Codec best used for?

URL Codec is best used to percent-encode or decode URL components, query strings, redirect values, and tracking links so reserved characters travel safely in links.

What input and output should I expect?

Provide a URL, query string, or individual component. The tool returns the encoded or decoded text so you can copy it into links, docs, tickets, or configuration.

Should I encode a full URL or only part of it?

For nested parameters such as redirect_uri, encode the value being placed inside another URL. Encoding a complete URL can also encode separators like ://, /, ?, and &, which may not be what you want.

What edge cases affect URL encoding?

Plus signs can mean spaces in form-encoded query strings, hashes start fragments, and Unicode characters may become multiple UTF-8 percent escapes. Always test the final link in the target application.