OctaSapien

Base64 Encoder / Decoder

Encode text to Base64 and decode Base64 text or binary attachments such as PDFs, images and ZIP files.

Input

Uses UTF-8 and runs locally in your browser. Base64 is not encryption: do not use real credentials. Browser text fields may normalize CRLF to LF. Limits: 8 MiB of UTF-8 text to encode; 12,000,000 Base64 characters and 8 MiB decoded. Binary detection uses signatures and does not validate file integrity.

Output

Ready0 lines0 bytesUTF-8
Status
Ready
Input size
82 B
Output size
0 B
Time
-
Format
Base64
Found something we could improve?
Practical usage guide

Practical usage guide

A practical workflow for Base64 Encoder / Decoder

Encode UTF-8 text and decode Base64 values for API payloads, sample credentials, attachments, and integration testing.

1. Prepare

Choose the conversion direction and use a representative source value, including edge cases such as empty or special characters.

2. Review

Compare the converted value with the source and verify that encoding, delimiters, data types and structure were preserved as expected.

3. Apply

Copy or download only the verified result and remove confidential data before sharing it.

Verification before operational use

  • Use representative samples without passwords, tokens, personal data or production secrets. Keep the smallest input needed to reproduce the behavior you are reviewing.
  • Confirm the result in the authorized target environment when runtime versions, namespaces, extensions, permissions or system configuration can change the outcome.
  • Record the source, assumptions, tool settings and expected result so another reviewer can reproduce the check and distinguish verified facts from recommendations.