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 StatsLines: 0Words: 0Chars: 0Size: 0 KB
Output StatsLines: 0Words: 0Chars: 0Size: 0 KB
System Status: Ready
Preview
⏳DOCX / XLSX: after clicking "Convert", please wait about 15 seconds for the file to finish being fully generated before clicking "Download" — the Download button will stay disabled and count down until it's ready.
📄 DOCX / PDF / RTF are document containers — pick which text format gets written inside them with the extra "Content" dropdown (e.g. keep it as JSON, or write XML/CSV/YAML text instead).
Input
Input statistics are shown in the status bar above.
Output
Output statistics are shown in the status bar above.
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.
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.