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Text ↔ Binary / Hex

Convert text to binary, hex, octal, decimal codes or HTML entities, and back. Runs on your device, UTF-8 correct, with auto-detect on decode.

Ready

Unit

Delimiter

Custom

Line break every

Entity style

Encode

Uppercase hex Prefixes (0b 0x 0o) Pad leading zeros Auto-detect format on decode

Text

Your text never leaves your browser. Nothing is uploaded.

Code

About Text ↔ Binary / Hex

Text ↔ Binary / Hex is a free, private converter that runs entirely in your web browser. Convert text to binary, hex, octal, decimal or HTML entities, and back. Everything happens locally on your device: your text is never uploaded to a server, there is no sign-up or installation required, and the tool works offline. It handles UTF-8 multi-byte characters correctly and supports custom delimiters, prefix notation, and line grouping. Like every free tool by Digital Heroes, it is 100% free with no limits.

What you can do

Encode text to binary: convert any string to space-separated 8-bit binary tokens, UTF-8 byte-accurate.

Decode binary back to text: paste binary code and get the original string instantly, with auto-format detection.

Switch between 5 formats: Binary, Hex, Octal, Decimal, and HTML entities from a single toggle.

Control delimiters and prefixes: choose space, none, or a custom separator, and toggle 0b / 0x / 0o prefix notation.

Group output into lines: break encoded tokens every 4, 8, or 16 units for readability.

Copy or download the result: one-click copy to clipboard or save as a .txt file.

How to use Text ↔ Binary / Hex

Open Text ↔ Binary / Hex. It runs entirely in your browser, with no signup.

Paste or type your text into the left panel, or paste encoded code into the right panel.

Select a format: Binary, Hex, Octal, Decimal, or HTML entities. Adjust delimiter, prefix, and grouping options as needed.

Click Encode or Decode, then copy or download your result. Your data stays on your device.

Frequently asked questions

Is Text ↔ Binary / Hex free?

Yes. Text ↔ Binary / Hex is completely free for everyone. No sign-up, no account, and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Text ↔ Binary / Hex runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. This tool is a Progressive Web App: once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Text ↔ Binary / Hex do?

Convert text to binary, hex, octal, decimal or HTML entities, and back, entirely in your browser.

Text ↔ Binary / Hex

About Text ↔ Binary / Hex

What you can do

How to use Text ↔ Binary / Hex

Frequently asked questions

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