Wormhole
In-depth reviewShare files up to 10GB with end-to-end encryption. Files are never stored permanently — they vanish after download or 24 hours. No account, no tracking. Faster than WeTransfer.
Wormhole opens in a browser tab — no download.
Not sure how to add Wormhole to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own Wormhole? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install Wormhole as a PWA
Why we recommend Wormhole
Almost every way of sending a large file asks you to trust someone with it. Wormhole doesn't: the file is encrypted in your browser before anything leaves your machine, and the decryption key travels in the part of the link after the # — the fragment, which browsers never transmit to the server. The people running Wormhole therefore hold an encrypted blob they cannot open, and that is a structural property, not a promise in a privacy policy. Files disappear on their own after 24 hours or once downloaded, so nothing accumulates. For files under about 5 GB the transfer can happen peer-to-peer while both tabs are open, which means the file never touches a server at all. It handles up to 10 GB, needs no account, and works the same from a phone as from a laptop.
Best use cases
Sending a video edit to a client who should not have to make a Dropbox account. Moving a database dump or a design archive between two machines that share no cloud. Passing something confidential — a contract, medical scans, a press embargo — to someone outside your organisation, where the point is precisely that no intermediary can read it. It is also the least awkward way to get a large file off a phone: open the site, pick the file, send the link.
Honest limitations
The link is the key: anyone who gets it can download the file, so send it through a channel you trust and do not paste it in a public thread. The 24-hour expiry is not adjustable on the free tier, which makes it wrong for anything you need to keep available. Peer-to-peer mode requires both tabs open at once; close yours too early and the transfer falls back to the server copy or fails. And because encryption happens in the browser, very large files are bounded by the memory of the device doing the sending — an old phone will struggle where a laptop will not.
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Wormhole in our guides
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