URL Encoder/Decoder
Encode and decode URL components and query strings
About URL Encoder/Decoder
How URL Encoder/Decoder Works
Encodes and decodes percent-encoded character sequences conforming to RFC 3986 Uniform Resource Identifier specifications. Operates synchronously using native browser encodeURIComponent and decodeURIComponent engines with zero server transmissions, protecting sensitive query parameters.
The URL Encoder and Decoder converts text into percent-encoded form and back, making strings safe to place inside URLs, query parameters, and form values. A typical use case is encoding a search term or JSON payload for a query string, then decoding a received value to read it. The tool handles reserved characters like spaces, ampersands, and slashes correctly so links do not break. All processing is local, so nothing is sent over the network. It is especially useful when building APIs, crafting redirect URLs, or debugging why a parameter arrived malformed on the server. Switching between encode and decode views lets you verify round-trips quickly.
Frequently asked questions
What gets encoded?+
Reserved and unsafe characters such as spaces, ampersands, and non-ASCII text.
Is this the same as Base64?+
No. URL encoding escapes characters for transport; Base64 transforms binary into text.
Does it upload my text?+
No. Encoding and decoding happen entirely in your browser.
Limitations
It encodes component values, not full URL structures, so you should encode pieces separately before assembling them.