Base64 to JSON Decoder

Paste a Base64 string below to decode it. If the decoded text is valid JSON, it’s automatically parsed and pretty-printed for you.

This is commonly needed when a JWT payload, API response, or config value has been Base64-encoded before transport.

Secure & Private: Your data is sent to our server only to perform the conversion, then immediately discarded — nothing is logged or stored.
Input Stats Lines: 0 Words: 0 Chars: 0 Size: 0 KB
Output Stats Lines: 0 Words: 0 Chars: 0 Size: 0 KB
System Status: Ready

Preview

Input

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Output

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Frequently Asked Questions

What if the decoded content isn’t JSON?

You’ll get the raw decoded text back as-is - the JSON parsing is a convenience for when the underlying data happens to be JSON.

Accessibility Statement

Universal Data Converter PRO is committed to ensuring digital accessibility for users with disabilities. Our interface is designed to meet WCAG 2.1 Level AA standards.

Accessibility Features