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ToolSuite

JSON to Base64

Minify JSON and encode it as Base64 and Base64URL.

Processed in your browser

Your result will appear here as soon as you add some input.

How to use it

  1. 1Paste your document into the input box, or type it directly.
  2. 2Adjust the options if you need something other than the defaults.
  3. 3The result updates as you type.
  4. 4Copy the result to your clipboard or download it as a file.

About the JSON to Base64

The document is minified before encoding, so the result is as short as it can be. Both the standard alphabet and the URL-safe one are shown - the latter is what a JWT payload uses.

Base64 is an encoding, not encryption. Anyone can decode it instantly, so it hides nothing.

Questions people ask

Is your document uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your document never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.

Is it free, and do I need an account?

Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.