Need to format JSON from an API response? The Wivrix Number Base Converter is free, works in your browser, and takes seconds to use.
What this tool does
Convert numbers between any base (2-36), view bitwise operations, IEEE 754 floating point representation, and more. Free, instant, runs in your browser.
Why use Wivrix?
Many online tools ask you to sign up, add a watermark, or upload your files to a server you cannot see. Wivrix is different:
- Private by design — Everything runs in your browser. Your files and input stay on your device — nothing is uploaded to Wivrix.
- Free — no account, no paywall, no file-size tricks
- Fast — open the page and start working
Step-by-step guide
- Type a number in any base — the tool auto-detects prefixes like 0x (hex), 0b (binary) and 0o (octal).
- Select a specific input base or use auto-detect.
- All common bases are shown simultaneously with one-click copy.
- Set a custom output base (2-36) to convert to any base you need.
Common uses
- Format json from an api response
- Decode a jwt during debugging
- Test a regular expression quickly
- Convert yaml config to json
Frequently asked questions
Do I need an account?
No. Open the tool and use it straight away.
Is the Number Base Converter really free?
Yes. Wivrix tools are free to use. The site is supported by ads that load only after you consent.
Is my data safe?
Everything runs in your browser. Your files and input stay on your device — nothing is uploaded to Wivrix.
Try it now
Open the free Number Base Converter and follow the steps above. If this guide helped, bookmark the tool or share it with someone who needs the same job done quickly.
Related tools
- Unix Timestamp Converter — see also our guide
- JSON Formatter & Validator — see also our guide
- Color Converter — see also our guide
Ready to try it? Open the free Number Base Converter — no sign-up needed.
Open Number Base Converter →