The from-base64 operation decodes a Base64-encoded value back into its original string. It is the inverse of the to-base64 operation.
How it works
- Input – a valid Base64-encoded string.
- Output – the decoded string.
- If the input is not valid Base64, the operation may return an empty string or the unmodified value, depending on the error handling.
Examples
| Input (Base64) | Output |
|---|---|
| aGVsbG8= | hello |
| MTIzNDU= | 12345 |
| eyJpZCI6MX0= | {“id”:1} |
| invalid!! | “ (empty string) or unchanged |
Usage in PalDock
Use from-base64 when you need to:
- Decode API responses that provide values in Base64.
- Convert stored tokens or payloads back into human-readable form.
- Process binary content (files, images) that was encoded for transmission.
Best Practices
- Always validate that the input is a valid Base64 string before decoding.
- Be aware that decoding binary data may produce non-printable characters – only decode into text fields if the source is known to be textual.
- Pair with to-base64 for round-trip transformations.