What is URL encoding?

URL encoding replaces unsafe characters with % followed by hex code (e.g. space becomes %20).

When do I need to URL encode?

When passing special characters in query strings or form data.

encodeURI preserves URL structure; encodeURIComponent encodes everything including / and ?.

Yes, you can encode/decode both full URLs and individual query parameter values.

Yes, URL encoding and percent-encoding are the same thing.

decode

Encode and decode URLs and query strings. Escape special characters for safe URL usage.

Plain text / URL

Select Encode or Decode.

Paste your URL or text to encode/decode.

Copy the encoded or decoded output.

Encode and decode Base64 strings online. Also supports file to Base64 encoding for data URIs.

Format, validate, and minify JSON data online. Syntax highlighting, error detection, and tree view.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text or files. Browser-based, private.