No size limit
Send large files without uploading them anywhere
Email caps attachments at 25 MB. Chat apps compress. Cloud services make you upload the whole file before the other person can start downloading it. This one opens a direct, encrypted connection between the two browsers and sends the bytes once.
Short answer
How do I send a large file for free?
Open this page on both devices. One side creates a 6-digit code, the other enters it and the connection is approved. Drag the file in and the other person clicks download — it streams directly between the two browsers, end-to-end encrypted, with no upload step, no account and no size cap.
Send one now
Share the code; the other person enters it to connect
Nothing to install. The code works for 15 minutes while this tab stays open.
How it works
- 1
Create a code
You get six digits. Send them over any channel you already use — chat, a phone call, a sticky note. The code alone gets nobody in.
- 2
Approve the connection
When the other person enters the code, a request appears on your screen with a 4-character tag. Check that the same tag is on their screen, then allow it.
- 3
Drop the file, they download
Either side can add files. The other side sees the names and sizes, and the file is only read from your disk once they click download.
Why every other service has a size limit
A size cap is not a technical law — it is a storage bill. Upload-and-share services keep a copy of your file on their disks and pay for every gigabyte sent back out again. The free tier exists to bound that cost, which is also why links expire after a few days and why the cap goes up when you pay.
Remove the copy and the cap has nothing to attach to. Here the file never lands on a server, so there is no storage to ration. The only real ceiling is free space on the receiving device.
| Upload-and-share services | This tool | |
|---|---|---|
| Where the file goes | Stored on the provider's servers | Straight to the other person's browser |
| Size limit | Whatever the plan allows | None — bounded by free disk space |
| Wall-clock time | Upload it all, then they download it all | One trip; they receive while you send |
| Link lifetime | Expires in a few days | Nothing is stored, so nothing expires |
| Encryption | In transit and at rest — provider holds the keys | End to end; keys never leave the two browsers |
| Sign-up | Usually required past a certain size | Never |
| Both people online | Not needed | Required — this is the real trade-off |
What actually decides how long it takes
Uploading to a cloud service costs you two trips. Your 20 GB has to climb your upload link in full, then come back down theirs. Nothing can start on their side until the first trip finishes.
A direct connection makes it one trip, and the two sides overlap: they are writing to disk while you are still reading. The speed you get is whatever the path between the two devices allows.
- Both devices on the same Wi-Fi or LAN: the file never leaves the building and you get local network speed — often hundreds of megabytes per second.
- Across the internet: the ceiling is the slower side’s upload bandwidth, which for most home connections is far below the download figure on the bill.
- Transfers run over four parallel data channels plus a control channel, so a single congested stream does not throttle the whole transfer.
Multi-gigabyte transfers and flaky connections
A 40 GB transfer takes long enough that something will interrupt it — a laptop sleeping, a train entering a tunnel, a Wi-Fi handover. The receiving side records which byte ranges already arrived, so reconnecting picks up from the gap instead of starting over.
Files are also read lazily. Adding a file to the list only shares its name and size; your disk is not touched until the other person actually asks for it. Queueing up 200 GB of footage costs you nothing until they choose what they want.
Frequently asked questions
Is there really no file size limit?
There is no limit imposed by us, because we never hold the file. In practice the limits are the receiving device’s free disk space and both people staying connected long enough for the transfer to finish.
Do I need an account to send large files?
No. There is no sign-up, no email address and no payment tier. The 6-digit code is created on demand and stops existing when you close the tab.
How long does the code stay valid?
Fifteen minutes, and only while the tab that created it stays open. It is a handshake, not a download link — once the two browsers are connected the code has done its job.
Can I send a whole folder?
You can select or drag in many files at once, but a folder structure is not preserved. Compress it to a single archive first if the layout matters.
What happens if my Wi-Fi drops halfway through a 30 GB file?
The received byte ranges are kept on the receiving side. Reconnect with a new code and the transfer resumes from where it stopped rather than starting again.
Can I send a large file to someone who is offline right now?
No. Both browsers have to be open at the same time, because the file moves directly between them. If the recipient cannot be online, an upload-and-share service is the right tool for that job.
Send one now
Create a code, read it out, and the file is on its way — no account, no upload, no expiry date.
Start a transfer