Octal to Base64
Enter space-separated octal byte values and get the Base64-encoded string in one click.
Last updated: May 29, 2026
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Buy me a coffeeWhat is Octal to Base64?
Octal to Base64 parses a list of octal numbers (base-8, each representing one byte from 0 to 377 octal / 0 to 255 decimal) into their raw bytes, then Base64-encodes the result. Octal notation was historically common in Unix systems and file permission bits; this tool bridges that representation to the Base64 format used in modern APIs and data URIs.
How to Use Octal to Base64
Paste space-separated octal byte values into the input.
Click "Encode to Base64".
Toggle URL-safe if needed.
Copy the output.
Common Use Cases
- Encoding legacy octal-formatted binary data for use in Base64-only APIs.
- Verifying octal→Base64 conversions against known test vectors.
- Learning how octal, binary, and Base64 representations relate to each other.
Example Input and Output
Encoding "Hello" from octal to Base64.
110 145 154 154 157SGVsbG8=Privacy
All processing runs in your browser. No data is sent to any server.
Frequently Asked Questions
What octal range is valid for a single byte?
Each octal value must be between 0 and 377 (octal), which maps to 0–255 in decimal — one byte. Values of 400 or above are rejected.
Do I need spaces between values?
Yes — the tool splits on spaces, commas, or semicolons. A continuous octal string without separators is ambiguous and cannot be parsed correctly.
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