End-to-end encrypted. No cloud in the middle. Free. On the same network it flies at LAN speed; across the internet it hole-punches; pair devices with a QR scan, and interrupted transfers resume where they left off. ThunderFile is also your file manager and a private photo gallery — ThunderFine.
Mobile apps roll out on the stores; desktop builds are signed installers for Windows, macOS and Linux. Everything is device-to-device and private by architecture — see our Privacy Policy.