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Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
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- No sign-up
- Works on any device
Fill in the details to see your QR code.
PNG for phones, chats and websites. SVG and PDF stay sharp at any size, which is best for printing. Tip: point your phone camera at the preview to test it.
3. Style (optional): colors, dots, logo
Choose a photo or screenshot or drag it here
Works with photos of printed codes, screenshots and image files.
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Number base converter
Convert between binary, octal, decimal, hexadecimal and any base from 2 to 36. Works with very large numbers.
- Free
- No sign-up
- Works on any device
About Number base converter
Convert numbers among binary, octal, decimal and hexadecimal, or any base from 2 to 36, even very large values. Programmers use hex for colors and memory addresses, and binary for bit flags. For example, decimal 255 is 11111111 in binary and FF in hex.
How to use Number base converter
- Type the value you want to convert.
- Choose the units to convert from and to.
- See the answer instantly, with a table of every unit and the formula.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
How do I convert binary to decimal?
Multiply each bit by a power of 2 from the right and add: 1011 = 8 + 0 + 2 + 1 = 11.
Is Number base converter free?
Yes. Number base converter on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.