What is File Size Formatter?

Convert byte counts to B, KB, MB, GB with any decimal precision.

Is File Size Formatter free to use?

Yes — File Size Formatter is free to use, with no sign-up, no install and no account.

No — File Size Formatter runs entirely in your browser, so your text, files and results never leave your device.

No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.

What is File Size Formatter?: Convert byte counts to B, KB, MB, GB with any decimal precision.
Is File Size Formatter free to use?: Yes — File Size Formatter is free to use, with no sign-up, no install and no account.
Does File Size Formatter upload or store my data?: No — File Size Formatter runs entirely in your browser, so your text, files and results never leave your device.
Do I need to install anything to use File Size Formatter?: No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.