Convert signed integers between binary, octal, decimal and hexadecimal in your browser.
Enter an integer and choose its input and output bases.
Maximum 256 characters, including any sign.
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Your content stays in your browser. Nothing is uploaded or saved.
BigInt converts integers exactly between bases 2, 8, 10 and 16, without floating-point rounding.
255
Add this tool as a separate web app, with its own name and direct launch. No account is needed.
Options depend on your browser and device. If installation is unavailable, bookmark this site instead.
Internet is needed for the first download and updates. After downloading from inside this installed tool, its saved page and local dependencies can reopen offline. Other tools, external links and services are not included. Browser-specific limits still apply.
Installing does not upload your files, save your inputs or sync results between devices.
Download only this tool and its required shared files. Install the tool, open its icon online, then download here and wait for completion. Inputs, imported files and results are not saved. Updates need extra free space.
Download size: …
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