Free, browser-based utilities for everyday developer workflows

URL Encoder & Decoder

Encode text for safe use in URLs (query parameters, fragments) or decode URL-encoded strings while you debug callbacks and redirects.

Use cases

URL encode query strings Parse URL query parameters

Explore more in the Use cases library.

  • Encode and decode URL components safely.
  • Handle query strings and percent-encoding.
  • Useful for redirects, OAuth, and UTM params.

Text <-> URL-encoded

Paste raw text on the left and encode it for use in URLs, or paste a URL-encoded value on the right and decode it back. + is treated as a space when decoding.

Text
URL-encoded
Runs locally in your browser. No uploads.

How to use URL Encoder & Decoder

Paste a URL or query string component into the input and click Encode to percent-encode special characters, or click Decode to recover the original string. The tool uses encodeURIComponent semantics so it is safe for individual parameter values.

Common use cases

Frontend developers use this to safely encode query parameter values before appending them to URLs. Backend developers use it to decode incoming query strings during debugging, and QA engineers use it to construct test URLs with special characters in parameter values.

Why run this in your browser?

All processing happens locally in your browser. Your data never leaves your machine, making it safe for sensitive payloads, internal API responses, and confidential configurations.