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Integer base converter
Convert signed arbitrary-size integers between bases 2 to 36.
Convert signed arbitrary-size integers between bases 2 to 36. Parse signed integer digits using BigInt and write the exact result in a chosen radix. Supported digits are 0–9 and a–z, with case-insensitive input.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Input: 255 Input base: 10 Output base: 16
Example result
ff
Limitations and details
Fractional digits and base prefixes are not interpreted; the integer digit string is limited to 10000 characters.
Inputs and options
- Input
- Text
- Input base
- Number · Minimum: 2 · Maximum: 36
- Output base
- Number · Minimum: 2 · Maximum: 36
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.