Why email fails, what your options are, and how to send a file of any size directly from your browser
✉️Why email is not an option
Email was never designed for big files. Gmail limits a message to 25 MB and Outlook.com to 20 MB, and what counts is the lower of the sender’s and the recipient’s limits. Attachments are also encoded before being sent, which makes them roughly a third larger, so the real ceiling for your file is often below 20 MB.
That is enough for a document or a few photos, but not for a video, a folder of RAW images, a design project or a backup. When a file is too big, Gmail replaces it with a Google Drive link: you are no longer sending an attachment, you are uploading to the cloud.
☁️Two ways to send a big file
Every free solution for large files belongs to one of two families.
Upload to a server, then share a link
Services such as WeTransfer, Smash, Google Drive or Dropbox first copy your file to their servers, and the recipient downloads it later, whenever they want. This is convenient when the recipient is not available right now. But the file travels twice (up, then down), it is stored on someone else’s infrastructure for a while, and free plans come with limits on the size per transfer, the number of transfers, the storage space or how long the link stays valid.
Send it directly, peer to peer
A peer-to-peer tool connects the two browsers and streams the file from one device to the other. Nothing is stored in between, there is no quota to fill, and the transfer starts as soon as the recipient opens the link and accepts it, with no upload to wait for. The trade-off: both people must be online at the same time, and the sender has to keep the page open until the end.
Open File Transfer on the device that has the file. No account or installation is needed.
Select the file, or drag it onto the page. A unique link is generated right away.
Send the link to the recipient by any means: messaging app, email, text message…
The recipient opens the link and confirms the download. The transfer starts immediately, and both sides see the progress, the speed and the estimated time remaining.
Keep your page open until the transfer shows as done. In Chrome and Edge on a computer, the recipient chooses where to save the file and it is written straight to their disk; other browsers save it with their usual downloads.
One link sends one file. To send several files or a whole folder, put them in a ZIP archive first (most operating systems can do it from the right-click menu). The same link can be opened by several recipients while your page stays open, and each of them receives their own copy.
💡Tips for a smooth transfer
Keep both tabs open. The file travels only while both pages are open. Closing or reloading the sender’s tab ends the transfer and the link stops working; you would have to share a new one.
Short drops are not a problem. If the connection is lost, both sides try to reconnect for 60 seconds, and the transfer resumes from the last received chunk instead of starting over.
The same network is faster. When both devices are on the same Wi-Fi or office network, the data can go directly across the local network instead of through the internet, which is usually much faster. Otherwise, the speed is limited by the sender’s upload bandwidth, which is often far lower than the download speed.
On a phone, keep the screen on. Mobile browsers may pause a tab when the screen locks or when you switch to another app, which interrupts the transfer. Stay on the page until the end, ideally with the phone plugged in.
Check the receiving browser. Chrome, Edge and Firefox normally write the file to disk as it arrives. Safari on Mac and every browser on iPhone and iPad assemble it in memory and save it at the end, and so do the other browsers when they cannot stream to disk (for example when service workers are disabled or blocked). In that case a very large file may fail if the device runs short of memory. For files of several gigabytes, receive them on a computer with Chrome, Edge or Firefox in a normal window when you can.
📤Ready to send your file?
No account, no upload, no size limit imposed: select a file, share the link, and keep the page open until the transfer is done.