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Octal converter

Free online octal converter. Convert text to octal (base 8) and back instantly — perfect for legacy Unix file permissions and older computing systems.

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Free Octal Converter — Text In, Octal Out

Convert any text into octal (base 8) and decode it back again, both directions in one tool.

Octal (Base 8) conversion is commonly needed for legacy Unix file permissions and older computing systems. The converter handles the full character set correctly.

How to use this tool

  1. Paste your text into the input box.
  2. Choose the direction: text to code or code to text.
  3. Copy the converted result.

Why use it on Shortlys?

  • Two-way conversion in a single page
  • Correct handling of spaces and full character sets
  • Free and instant

Frequently asked questions

Are there any usage limits?

No. You can use this tool as often as you like — it is free and unlimited for everyone.

Can I use the results commercially?

Yes. Whatever output the tool produces is yours to use in your projects, client work or business.

Is my input stored or shared?

Your input is only processed to run the tool. There is no history to review and nothing is shared with third parties.

Looking for more? Shortlys also offers 126+ free online tools, URL shortening and bio link pages — all in one place.

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