URL Encode / Decode

Percent-encode or decode text, or break a full URL into its parts.

Private by design. Your input never leaves this browser. Conversions run locally on your device.

What this tool handles

Detects what to do with the input: an absolute URL is inspected, text carrying percent escapes is decoded, anything else is encoded.
Encoding uses encodeURIComponent for a single value or encodeURI for a whole URL.
"+" can be treated as a space when decoding, which is the form-submission rule.
Inspecting a URL breaks out protocol, host, port, path, query parameters and hash.

hello world&lang=cs

hello%20world%26lang%3Dcs

JWT Decoder — Decode a JSON Web Token header and payload locally. Signatures are not verified.
Base64 Encode / Decode — Encode and decode Base64 and Base64URL with correct UTF-8 handling.
cURL → code — Translate a cURL command into fetch, axios or Python requests code.
Hash Generator — Compute SHA-256, SHA-384, SHA-512, SHA-1 and MD5 digests of text or a file.