Frequently asked questions
Answers about free large-file transfer, encryption, retention, and replacing PPAP.
Is it free?
Yes. Secufile is completely free with no sign-up. It is run by the Japanese non-profit PAPS (特定非営利活動法人ぱっぷす).
How large a file can I send?
Up to 10 GB and 100 files per transfer. Choosing a longer retention or more downloads lowers the limit a little.
Is it secure? Are files encrypted?
Files are encrypted with a password before they leave your device, so even the server operator cannot read them. The password is never stored, so no third party can recover a lost file.
How long are files kept?
You can set retention from 1 to 100 days. Files are deleted automatically when they expire or reach the download limit.
Can I use it instead of a password-protected ZIP (PPAP)?
Yes. It encrypts the file itself without making a ZIP, so it is a safer alternative to PPAP. Share the password through a different channel than the link.
Does it work on a phone?
Yes. Pick files or photos straight from your phone's browser and send them. There is no app to install.
Does the recipient need an account?
No. They just open the link and enter the password to download.
Can I delete a file I sent?
Yes. Create a management link when you send, and you alone can check download status and delete the share manually.