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Binary to Text Converter

Converts binary code back into readable text, and text into binary, with 8-bit grouping and space or no-space output.

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In short Binary to text converts groups of eight bits back into the characters they encode, so 01001000 01101001 is "Hi". Each eight-bit group is one byte, and the byte is looked up as a character — 01001000 is 72, which is capital H in ASCII and in UTF-8, since UTF-8 is identical to ASCII for the first 128 characters. That equivalence is why English text converts cleanly in both directions and why anything else needs more care: a character outside ASCII takes two to four bytes in UTF-8, so "é" is 11000011 10101001, two groups for one character. A converter that treats every eight bits as one character gets that wrong and produces two nonsense symbols. The grouping is the other thing to watch. Binary is conventionally written in eight-bit groups separated by spaces, but plenty of sources give it as one unbroken run, and a stream whose length is not a multiple of eight is either truncated or was never eight-bit encoded. This tool accepts both spaced and unspaced input.

How to use the Binary to Text Converter

  1. Type or paste your input.
  2. The output is produced instantly as you type.
  3. Press Copy to take the result with you.

About the Binary to Text Converter

The Binary to Text Converter converts binary code back into readable text, and text into binary, with 8-bit grouping and space or no-space output. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Decoding a binary string from a puzzle or CTF challenge.
  • Teaching how characters map to bytes.
  • Checking an encoding by hand.

Frequently asked questions

Does the Binary to Text Converter cost anything?
There is no cost and no cap. The Binary to Text Converter is not a demo of a paid product, so nothing is held back or watermarked.
Is what I paste into the Binary to Text Converter stored?
No. The Binary to Text Converter runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
Give me a worked example.
Enter 01001000 01101001 and the Binary to Text Converter returns Hi.
Who is the Binary to Text Converter for?
Typical uses: decoding a binary string from a puzzle or CTF challenge. Teaching how characters map to bytes. Checking an encoding by hand. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Does the Binary to Text Converter work on a phone?
Yes. The page is responsive and the page works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.

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