Free Online Base64 to JSON Decoder

Free online. No signup, no email required. Get results on this page.

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 processed, then deleted right away. Nothing is logged or saved.

Input Ready

Input statistics are available via the Stats button above this field.

Output

Output statistics are available via the Stats button above this field.

Results are provided for informational purposes only and may contain errors. Please verify important information independently. Use of this tool is at your own risk.

Is this tool free?

Free online. No signup, no email required. Get results on this page.

How do I get my result?

Use the tool on this page. Your result appears here; no email delivery is required.

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.