Free Base64 & URL Encoder / Decoder

Encode or decode UTF-8 text as Base64 or a URL component. Convert text online with whitespace preserved and validation for malformed encoded input.

Free · No AI API key required

How to use this tool

Encode text for a Base64 field or a URL parameter, or decode it back into readable UTF-8. Choose the operation explicitly so the tool knows which encoding to use.

  1. Select Base64 encode, Base64 decode, URL encode or URL decode.
  2. Paste your text, including any whitespace you want to preserve.
  3. Run the conversion and copy the output.

Example to try

Base64 encode: Hello → SGVsbG8= URL encode: hello world → hello%20world

Supported use and limits

This is a text converter, not a binary file converter. Base64 decoding expects valid padded Base64. URL operations encode a component, not an entire URL; URL decoding keeps + as a literal plus sign.

Does Base64 keep my text secret?

No. Base64 is a reversible representation, not encryption. The text is sent to this server for processing, so use sample data rather than private credentials.

Free to use without an account. Submitted input is processed on our server. How Sarvam Tools works.