Step-by-step
- Copy the Base64 value.
- Open a Base64 decoder.
- Paste the encoded input.
- Decode it.
- Inspect the resulting text or data.
Invalid Base64 input
Unexpected characters, damaged values, incorrect padding, or a value that is not actually Base64 can cause decoding errors.
Base64 and UTF-8
When encoded text contains non-ASCII characters, the original character encoding matters. A decoder needs to interpret the resulting bytes correctly.
Finish the task with DevUtilityKits
Use the relevant online utility, check the result, and continue with your development workflow.
Open Base64 Tools →