WolfP2PSend a file that is too large for email
For:All users
No technical knowledge required.Email and messaging services may reject a large file, impose an attachment limit, or replace the attachment with a hosted download link. That adds an upload step and may leave another stored copy with the provider. WolfP2P lets the sender stream the file to the receiver as part of one live transfer, without first completing a provider upload.
Why WolfP2P fits
WolfP2P sends the file directly between two browsers without an attachment-size ceiling imposed by email. Email or messaging carries only the invitation; the large file itself travels over an encrypted direct transfer channel.
This also avoids another provider-held copy and requires no transfer application or account. For original media handling, see Send a Large Video Without Compression.
This is most useful when the receiver is available now. Unlike an attachment or hosted link, the invitation does not contain the file and does not make it available for a later download after the sender leaves.
Before you start
Connection discovery helps the browsers connect directly across different networks. Some networks still prevent a connection, and there is no relay fallback. See connection requirements. Keep both computers online until the transfer finishes. Complete folder preservation and disk-backed large-file handling require a Compatible Browser, such as current Chrome, Edge, or Brave, with the required capabilities confirmed by WolfP2P's live check. Keep both transfer tabs open until completion. Confirm that the receiver can write to the chosen destination and has enough free space for the transfer mode.
How to send the file
Ask the receiver to be available
Unlike an attachment or hosted download, this is a live handoff. Confirm that the other person can keep their computer online until the file arrives.
Create an invitation
Open WolfP2P on the computer containing the file, create a tunnel, and privately share its link or six-character code.
Select the oversized file
After the intended receiver joins, choose the file that the email or messaging service could not accept.
Review before accepting
The receiver checks the offered name and size, chooses a supported receiving mode with enough space, and accepts the transfer. Folder-saving mode writes to a selected folder. Browser-download mode receives into browser-private storage when the required capabilities are available; saving a download is a separate step.
If the browser refuses Documents or reports system files, create a subfolder inside Documents and select that instead. See folder permissions.
Complete the direct handoff
Keep both computers awake while the file moves. Verified receipt in browser-download mode confirms bytes in browser-private storage, not a saved download. Save the download and verify the local result before clearing site data. In folder-saving mode, inspect the result in the chosen folder.
See How WolfP2P Works for the complete transfer flow.
One browser tab represents one tunnel. Reloading or browser-restoring the same tab can resume its session, but genuinely closing the tab ends that session.
For supported destination-folder receiving, mid-file checkpoint resume requires the receiver to use Safe mode. Safe mode may need about twice the file's size in free disk space, and an interruption can require retransferring up to approximately 256 MB of the current large file.
Quick mode uses about the file's own size in free disk space and avoids checkpoint-copy overhead, but an interrupted current file restarts from its beginning.
Home or workplace network rules may affect whether the computers can connect. If you are unable to connect, see connection requirements for sending files remotely.
Use another method when the receiver needs to download later, several people need the same link, or the file must remain hosted online. Compare live large-file transfer with email delivery when availability after the sender leaves is the deciding factor.
Questions and answers
Does WolfP2P upload the large file first?
No. WolfP2P's server helps the browsers connect but does not receive, store, or relay the file bytes.
Can the receiver download the file later?
The invitation is not a hosted download link: both computers must remain online for the transfer. Once the receiver has saved the file locally, they can use that saved copy later. Use a hosted service if the sender must leave before the receiver receives it.
Can an interrupted large file continue?
On a compatible receiving browser, Safe mode can continue a large file from saved progress. Quick mode starts the interrupted file again. See recovery and reliability for the exact rules.