Binary Conversion
Two-way conversion between binary data and plain text
Features
Mutually convert text and binary
Switch between encoding and decoding with one click
Supports UTF-8 including Japanese
Accurately converts multibyte characters into 8-digit bit sequences
Selectable delimiter
Specify space-separated or concatenated to suit your purpose
Processes up to 1 million characters
A large-capacity design that batch-converts long text data
How to Use
Select the conversion mode with a button
Switch the conversion direction with the "Text → Binary" and "Binary → Text" buttons
Enter the content to convert
Enter text or a binary string of 0s and 1s in the input field. Loading from a sample is also possible
Set the binary delimiter
For Text → Binary, choose the delimiter every 8 digits as a space or "none"
Show the result with the convert button
Press convert to show the result in the output field, ready to use with copy or download
Use Cases
Support for learning programming
Understand through real examples how characters are handled as binary inside a computer
Checking character encoding behavior
Check the bit sequence of a UTF-8 encoding result to use in verifying implementations and tests
Decoding binary data
Restore a sequence of 0s and 1s in documents or logs back into the original text to quickly grasp the content
Creating exercises for classes and materials
Quickly prepare correspondence examples between binary and text to use in computer science exercises
Creating binary-style messages
Convert a greeting or password into a bit sequence to use in quizzes or playful touches
Basic Knowledge
How Text Becomes Binary
Computers manage characters using character codes (numeric values), and the binary representation of text is expressing those numbers as sequences of 0s and 1s. For example, in UTF-8, the character "A" is represented as 01000001.
Bits and Bytes
- Bit：A bit is the smallest unit of information in computers, representing either 0 or 1. One digit in binary corresponds to exactly one bit.
- Byte：A byte is a unit consisting of 8 bits grouped together. In UTF-8, a single alphanumeric character is represented as 1 byte, while a single Japanese character is typically represented as 3 bytes.
Safety and Privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
conversion processing is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
conversion results and input suggestions are not stored on the server.
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Featured Tools
RAKKOTOOLS is free to use!
Available free of charge for individuals and corporations, commercial and non-commercial use alike.No prior permission or usage application is required. Feel free to use it in various situations.
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Use in schools, work, and events
Can be used in various situations such as classes, team division, internal work, and events.
Introduction on Web, books, and SNS
Feel free to introduce it as a useful tool on web media, books, SNS, and other platforms.
Commercial use
Can be used for commercial purposes such as research, calculation, processing, and conversion in business and production.
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If using in streaming and videos
Link to RAKKOTOOLS in the description, or Mention or display that you are using RAKKOTOOLS in the stream or video.
Credit example for the description
Usage guidelinesYou are free to use it for normal purposes. However, use for purposes that violate laws, infringe on third-party rights, impose significant load on the service, or otherwise interfere with service operation is prohibited.
We do not guarantee the accuracy or completeness of information and calculation results obtained from each tool.
This notice is a translation of the original Japanese text. If there is any discrepancy between the translation and the original, the Japanese original takes precedence.