How-to May 20, 2026 · 7 min read

How to Send Large Files (10 GB+) for Free — Without WeTransfer or Email

Email caps at 25 MB. WeTransfer free at 2 GB. The fastest, simplest way to send anything bigger is peer-to-peer — and the math on why is striking.

The math, in one widget

Drag the slider below to set a file size. The bars race in real time to show how long the same file takes by each common method — and which ones refuse outright.

Drag to set file size
1.1GB
10 MB100 MB1 GB10 GB50 GB
P2PInterDrop P2P · LAN
110 Mb/s
1m 20s
P2PInterDrop P2P · Internet
28 Mb/s
5m 13s
Cloud upload + download
10 Mb/s
15m 37s
Email attachment
Over 25 MB attachment cap
BLOCKED
Assumed throughput: P2P-LAN 110, P2P-net 28, Cloud 10, Email 5 Mb/sP2P cost: $0 · no upload step · no retention

Why P2P pulls ahead at every size

Cloud upload-and-download is doing the work twice: the file has to travel from you to the server (your upload speed, often slow) and then from the server to the recipient (their download speed). P2P skips the middle entirely and uses the fastest path between the two devices — which, on the same Wi-Fi, is your router itself.

The real “limits” of free services

  • Gmail / Outlook attachments — 25 MB hard cap. Anything bigger gets rewritten into a Drive/OneDrive link.
  • WeTransfer free — 2 GB per transfer. After that you need WeTransfer Pro at €10/mo.
  • Google Drive free — 15 GB total quota across Gmail and Photos. One 4K wedding video can eat half of it.
  • iCloud Mail Drop — 5 GB per file, 30-day expiry, requires an Apple ID on both sides.
  • InterDrop P2P — no cap. Throughput is whatever your network supports.

Free tiers exist to upsell you to paid tiers. P2P doesn’t have tiers — it just runs.

When to use what

  • Up to 25 MB, recipient checks email anyway → email attachment.
  • Few hundred MB, recipient is offline → Drive/Dropbox link.
  • Anything 1 GB+, both sides can open a browser → P2P, always.
  • Sensitive file of any size → P2P, no server copy to worry about.

Frequently asked

Is there really no upper limit?
No fixed cap. We've seen people stream 100+ GB drives over a single session. The practical limit is keeping both tabs open and on the same network.
What if my upload speed is awful?
Then so is a cloud upload — P2P uses the same uplink. On the same LAN it doesn't matter; you go router-to-router.
Does the recipient need an account?
No. They open a tab and the file starts arriving. Same as the sender.
Can I send to multiple people at once?
Send to each peer-to-peer; the total time is approximately the same as one send (your upload is the bottleneck either way). For very large groups, cloud is more efficient.

Try peer-to-peer for yourself.

Open InterDrop on this device, open it on the device you want to send to, and drop a file. No sign-up. No install.

Open InterDrop