Quickly encode and decode URLs for parameter handling and debugging
The URL Encoder / Decoder is a simple online tool that converts text to URL-encoded format or decodes URL-encoded data back to plain text. URL encoding is commonly used to transfer special characters in URLs, form submissions and other scenarios to ensure data travels safely over the network.
Whether you are a developer handling URL parameters or a regular user decoding special characters in a URL, this tool meets your needs. All operations run locally and never upload your data. Want to understand the "why" behind it? Read our URL encoding guide →
Convert plain text to URL-encoded format for safe transfer in URLs and forms.
Decode URL-encoded text back to its original form, supporting all standard URL encoding formats.
Provides detailed error messages to help you identify problems encountered during decoding.
All operations run locally and never upload your data, keeping it safe.
URL encoding (also called percent-encoding) converts characters that aren't safe in a URL — like spaces, ampersands, and non-ASCII letters — into a %XX sequence, so the URL stays valid and unambiguous.
Whenever you append text, query parameters, or special characters to a URL. Encoding makes sure the server reads the exact value you intended, not a mangled version of it.
Reserved characters like / ? & # are left alone when encoding a full URL so its structure stays intact. Encoding a single parameter value encodes everything, including those characters, which is what you want for individual query values.
No. Encoding and decoding run in your browser, so URLs containing tokens or private parameters stay on your device.
For a deeper look at how percent-encoding works, read our guide: What Is URL Encoding?