AK
appkiro.comEnter or Upload
Input your text or upload a file
Choose Action
Encode, decode or view information
View Results
See output and extra details
Input (Binary)
101010 111100 110101 ...
Split into 6-bit
101010 111100 110101 ...
Convert to Index
42 60 53 ...
Base64 Characters
q 8 1 ...
100% Private & Secure
All processing happens in your browser. No data is sent to any server.
Decode a Base64 payload back into a JSON document. Use it whenever a service stores or transmits JSON inside an opaque token.
Inspecting JWT-like containers, decoding API responses pasted from logs, or reading config blobs stored in Base64 fields.
For structured payloads, inspect the decoded document with JSON Validator or convert it with JSON to CSV.
Will this pretty-print the JSON?
No. The decoded text is returned exactly as it was encoded.
What if the payload is not valid Base64?
An error is shown immediately.