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.
Example
Input
Hi! Output
110 151 041 Every value is padded to three digits, which is what makes the output splittable back into characters — without padding, 041 would be ambiguous with 41.
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, and Octal to String turns the output back into text.
- 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.