Binary-HEX Conversion

Two-way conversion between binary and hexadecimal (HEX)

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Features

Mutually convert binary and hexadecimal

Radix-convert bit sequences and HEX values in both directions

Choose uppercase or lowercase

Specify the A–F notation of hexadecimal to suit your purpose

Converts values with spaces

Automatically processes delimited values by removing the whitespace

Processes up to 1 million characters

A design that batch-converts long bit sequences and dumps

How to Use

1

Select the conversion direction with a button

Switch the conversion mode with the "Binary → Hex" and "Hex → Binary" buttons

2

Enter the value to convert

Enter binary or hexadecimal in the input field. Loading from a sample is also possible

3

Set whether to output in uppercase

For Binary → Hex, switch the A–F notation with the "Output in uppercase" toggle

4

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

Debugging in programming

Convert bit flags and register values to hexadecimal to use in checking code behavior

Learning and checking radix conversion

Confirm through real examples how 4 bits correspond to one hexadecimal digit, and use it to check hand calculations

Support for analyzing memory dumps

Consolidate data in binary notation into easier-to-read hexadecimal to streamline understanding the contents

Checking network settings

Cross-check the bit sequences of subnet masks and MAC addresses against hexadecimal

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.