URL Encoder / Decoder
Encode text for use in URLs or decode percent-encoded strings. Uses standard JavaScript encodeURIComponent / decodeURIComponent.
When to Use URL Encoding
URL encoding is needed when query parameters or path segments contain spaces, ampersands, equals signs, or other characters that have special meaning in URLs. Browsers and APIs use percent-encoding (e.g. %20 for space). This tool uses the same rules as JavaScript's encodeURIComponent so the output is safe for query strings.
Frequently Asked Questions
What is URL encoding?
URL encoding (percent-encoding) converts special characters into %XX format so they can be safely used in URLs. For example, a space becomes %20 and & becomes %26.
Is my data sent to a server?
No. Encoding and decoding happen entirely in your browser. Your text never leaves your device.
When should I encode vs decode?
Encode when building URLs with query parameters or path segments that contain spaces or special characters. Decode when you have a percent-encoded string and need to read the original text.