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No. You can send and receive files without signing up. An account is optional — it adds a dashboard to manage your transfers and an optional vault for file names.

On the home page, drag files or folders onto the send card (or tap to choose). Then pick how to send them: create a share link to send anywhere, or send straight to a device with In person or My devices. A basic link needs no account.

Open the share link and download — nothing to install. For a In person transfer, open Receive, enter the sender's code (like SEND-4K2P9) or scan their QR, and the files arrive directly, device to device.

No. Senderly works in any modern web browser on desktop or mobile — no app or extension required. All encryption and decryption happen inside your browser.

Any modern browser on desktop or mobile — no app or extension required. Encryption and decryption happen right inside the browser.

No. Your files are encrypted on your device before they are uploaded, and the key lives only inside the share link — never on our servers. We cannot read your files, their names, or your keys. That is what "zero-knowledge" means.

Very little. Files and file names are encrypted on your device, so we can't read them. We only handle the minimum needed to deliver a transfer — such as size, number of files, expiry, and whether a password is set.

For device-to-device transfers, Senderly shows a short security code on both screens. If the codes match, the connection is authentic and end-to-end encrypted. If they don't match, cancel and try again.

The password protects the transfer and is never sent to us, so we cannot recover it. Share it separately from the link, and keep a copy somewhere safe.

Encrypted files are stored on Cloudflare R2 and deleted automatically at expiry (24 hours, 7 days, or 30 days) or right after a one-time download. We don't keep copies. Device-to-device transfers don't touch our storage at all.

We handle personal data in line with Singapore's PDPA, and with the EU/UK GDPR where it applies to you. Because files are end-to-end encrypted, we can't access their contents. See our Privacy Policy for details.

You can send up to 15 GB per transfer. Links delete automatically — choose 24 hours, 7 days, or 30 days when you create one.

Yes. When you create a link, choose 24 hours, 7 days, or 30 days — the transfer is deleted automatically at expiry. You can also enable "delete after first download" for a one-time link.

Yes — drag in whole folders and their structure is kept. You can send many files in one transfer, up to a total of 15 GB. Large batches are packed together for faster device-to-device sending.

It creates a one-time link: the transfer self-destructs the moment it is downloaded once. Preview is disabled for these links, because reading any part of them would destroy them.

For most links, the recipient can preview images, text, and PDFs (and short video or audio) before downloading. Preview is disabled for one-time "delete after first download" links, because opening them would use up the single download.

Use In person: create a short code (or QR) on one device and enter it on the other. Files go straight device-to-device, encrypted, without an account.

In person is for a one-off transfer to any device using a short code or QR — no account needed. My devices is for your own signed-in devices, which stay paired so you can send between them instantly without a code.

My devices lets you send between your own signed-in devices without re-verifying each time. Pair a device once (from Settings or the pairing screen); afterwards transfers connect automatically, still end-to-end encrypted.

On a device where you're already signed in, open "Log in on another device" to show a QR code. Scan it with the new device's camera and approve the request — you'll be signed in there without typing your password.

Yes. When both devices are on the same network, Senderly connects them directly over your local network for faster local transfers. Sharing is opt-in and the transfer stays end-to-end encrypted.

Discovery is opt-in and off by default. On both devices, open Senderly, choose "In person", and turn on visibility for this network — then make sure both are on the same Wi-Fi. Some networks (public, guest, or corporate Wi-Fi) keep devices apart or block local discovery, so nothing appears; that's normal. You never need it: share or enter a code like SEND-4K2P9, or scan the QR, and files go directly on any network, with no camera or network permission required.

Yes. Universal clipboard lets you copy on one device and paste on another, end-to-end encrypted. Turn it on in settings on each paired device.

The vault (a Pro feature) saves your real file names, encrypted, so they appear on any device you sign in to. Your passphrase never leaves your device — if you forget it, the saved names are lost for good, but your files stay reachable through their links.

Sending and receiving is free, with no account required. Paid plans — Plus, Pro, Team, and Enterprise — add higher limits, longer link life, the encrypted vault, and team features. See the Pricing page for the full comparison.

You can delete your account from Settings; this removes your account data and saved (encrypted) file names. Any active transfers still expire on their own schedule. If you need help, contact us.

Transfers can resume. If the connection drops or a tab reloads, Senderly picks up where it left off instead of starting over from zero.

Check your connection and try again — transfers can resume from where they stopped instead of restarting. If a tab reloaded, reopen the same page to continue. Large files over a weak connection can be slow; a stronger or wired network helps.

The link may have expired, reached its download limit, or been a one-time link that was already opened. If you set a password, it's required — share it separately. When in doubt, create a fresh link; we can't recover expired transfers.

Use the Report page. It is anonymous, and we still never see your files, names, or keys.