About this tool
File Size Converter is part of our File Tools collection. It is designed for a clear, fast workflow with practical options, useful output, and privacy-aware processing.
File Size Converter
Convert between bytes, KB, MB, GB, and TB.
KB
Convert between bytes, KB, MB, GB, and TB.
✓Your files are processed in your browser — nothing is uploaded to our servers.
Privacy-first processing
Your files are processed in your browser — nothing is uploaded to our servers.
Frequently asked questions
Can I use File Size Converter for free?
Yes. You can use the core File Size Converter workflow for free.
How are my files handled?
Your files are processed entirely in your browser. File contents are never uploaded to our server.