Pause and resume
Stop a large transfer and continue later from the remaining pieces.
Secure file transfer
Move the files that make hardware work
Send firmware, logs, captures, test results, and entire folders alongside a remote support or lab session—without restarting from zero after a brief disconnect.
What you can do
Built around the job, not the jargon
Files and folders
Send individual files or recursively transfer a directory structure.
Verified arrival
Every piece and the final file are checked before the result is accepted.
Transfer queue
Prioritize work, limit concurrent transfers, retry failures, and review progress.
Send only changes
For updated large files, delta sync can transfer the changed blocks instead of the whole file.
Clear destination boundary
A shared folder limits where the remote participant can browse, read, or write.
A clear workflow
From invitation to completed work
- 1
Choose a shared folder
The host defines the part of the computer that is available for the session.
- 2
Add files to the queue
Select files or folders, set priority or speed limits, and begin.
- 3
Verify completion
NullPort confirms integrity and records the outcome in transfer history.
Common questions
Good to know
Can a large transfer resume after a disconnect?
Yes. NullPort records completed pieces and can continue from the remaining data.
Can I send a folder?
Yes. Folder structure is preserved during recursive transfer.
Can a guest browse the whole computer?
No. Remote file access is confined to the folder explicitly shared for that session.
Start today
Try it with your own equipment.
The free trial begins with your first sharing invitation and includes the standard feature set.