String to Octal
Convert text to octal representation — every character encoded as a three-digit octal value instantly. Free, instant, client-side octal encoder.
🔒 100% Client-Side Processing
Your data is processed entirely in your browser and never transmitted to any server.
0 / 100M Limit
Common Use Cases
Writing escape sequences
Get the octal values needed for C string literals and shell escape sequences like \101.
Legacy format compatibility
Produce octal-encoded values for older protocols and file formats that predate hex conventions.
Frequently Asked Questions
- What does the octal output look like?
- Each character becomes its code value in base 8, zero-padded to three digits and space-separated — "Hi" encodes to 110 151. Octal digits only run 0–7.
- Where is octal encoding still used?
- Unix file permissions (chmod 755), escape sequences in C and shell strings (\101), and some legacy protocols and file formats. It is compact for byte values since three octal digits cover 0–255.
- Is my data private when I use this tool?
- Yes. This tool runs entirely in your browser using client-side JavaScript — nothing you type is transmitted to, logged by, or stored on any server. You can safely process confidential text, tokens, or code.