Converter Tools

Octal to Base64

Enter space-separated octal byte values and get the Base64-encoded string in one click.

Last updated: May 29, 2026

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What 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

1

Paste space-separated octal byte values into the input.

2

Click "Encode to Base64".

3

Toggle URL-safe if needed.

4

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.

Octal bytes

110 145 154 154 157

Base64

SGVsbG8=

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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