The best free online hex and binary tools convert numbers between bases, run bitwise operations, and turn bytes into text or images, all in your browser. All Tools Verse has a full set of free hex and binary converters that run client-side with no sign-up and nothing uploaded. This guide picks the best free tool for each task, from a simple hex to decimal conversion to bitwise XOR and binary addition.
In this guide
Best hex and binary tools at a glance
Pick the task, then open the tool. Each is free and needs no account.
| Task | Best free tool | Good for |
|---|---|---|
| Hex to decimal | Hex to Decimal, Decimal to Hex | Reading and writing hex values |
| Hex to binary | Hex to Binary | Seeing the bits behind a hex value |
| Decimal to binary | Decimal to Binary, Binary to Decimal | Base 10 and base 2 |
| Hex to text | Hex to Text, Text to Hex | Decoding and encoding bytes |
| Bitwise XOR | XOR Binary, XOR Hex | Masks, checksums, crypto basics |
| Binary addition | Binary Addition | Adding numbers in base 2 |
| Hex to color | Hex to RGB, RGB to Hex | Web and design color codes |
Binary converters
Binary is base 2, the bits a computer actually stores. To move between base 10 and base 2, use Decimal to Binary and Binary to Decimal. To see the bits behind a hex value, Hex to Binary does it instantly, and Binary to Octal covers base 8. For text, String to Binary and Binary to String turn words into bits and back, and Binary to Image renders raw bits as a picture.
Hex converters
Hex, or base 16, is the compact way programmers write bytes. The everyday conversions are Hex to Decimal and Decimal to Hex. To decode bytes into readable characters, use Hex to Text and Text to Hex, or the encoding aware Hex to ASCII, ASCII to Hex, Hex to UTF-8, and UTF-8 to Hex. You can also reshape values with Reverse Hex Digits and Rotate Hex Digits.
Bitwise operations and math
Bitwise operations compare numbers one bit at a time, the building blocks of masks, flags, and checksums. Run them with AND, OR, and XOR on binary, or XOR Hex, OR Hex, and NAND Hex on hex. For arithmetic, Binary Addition and Multiply Binary work in base 2, while Add Hex and Multiply Hex work in base 16. To measure a value, Count One Bits and Count Zero Bits give the Hamming weight.
Color, bytes and addresses
Hex is everywhere in web design, so Hex to RGB and RGB to Hex move between color codes. To visualize raw data, Hex to Image and Binary to Image draw bytes as pixels. For networking, IP to Binary, Binary to IP, IP to Hex, and Hex to IP translate addresses between forms.
Octal, Gray code and BCD
Beyond hex and binary, base 8 is handled by Octal to Binary and Octal to Hex. Gray code, used in encoders and error reduction, has Binary to Gray Code and Gray Code to Binary. Binary coded decimal is covered by Decimal to BCD and BCD to Decimal.
How to choose the right tool
Start from what you have and what you need. Converting a value between bases is a single converter such as hex to decimal or hex to binary. Working with the meaning of bytes, like a hex dump, calls for hex to text or an encoding aware converter. Combining two values bit by bit is a bitwise tool such as XOR or AND. For a quick reference on how the bases relate, our guides on adding hex and counting set bits explain the math behind the tools.
Trusted alternatives
Single purpose converters are fastest for one value. For chaining many steps together, CyberChef is a free tool from GCHQ that pipes operations into a recipe, and the programmer mode in the Windows, macOS, or Linux calculator handles base conversion and bitwise math offline. For a quick one off conversion, a dedicated browser tool is simpler.
Popular free tools in this guide
Frequently asked questions
What is the best free hex to binary converter?
Use Hex to Binary for a single value, which expands each hex digit into four bits instantly in your browser. For the reverse, Binary to Decimal and Decimal to Hex chain together.
How do I convert hex to text?
Run the bytes through Hex to Text, or use Hex to ASCII and Hex to UTF-8 when you need a specific encoding. Each turns pairs of hex digits into readable characters.
How do I XOR two numbers?
Open XOR Binary Values or XOR Hex Numbers, enter the two values, and the tool returns the result bit by bit. XOR is the basis of simple masks and checksums.
Are these hex and binary tools free?
Yes. Every tool is free with no account, because the conversion runs on your device rather than on a server.
Do they work offline and keep my data private?
They run in your browser with JavaScript, so once the page loads the values you enter never leave your computer.
What is a good free alternative to CyberChef?
CyberChef is great for chaining steps. For a single conversion, a focused tool like Hex to Decimal or Hex to Text is faster, and the programmer mode of your system calculator works offline.
This guide is part of our roundup of the best free online tools.