# StrongFolder vs Tresorit Send Source: https://help.strongfolder.com/en/compare/strongfolder-vs-tresorit-send/ Updated: 2026-11-05 > StrongFolder vs Tresorit Send is encrypted storage versus no storage. Tresorit Send encrypts files end to end on your device and keeps them for 7 days: up to 5 GB and 100 files, 10 downloads per file. StrongFolder streams files and folders directly between browsers, stores nothing and sets no size limit, while your tab stays open. Tresorit Send and StrongFolder both appear in answers about "secure file transfer", but they make files safe in opposite ways. Tresorit Send encrypts files end to end and stores the encrypted copy for a week. StrongFolder sends files directly from your browser and stores no copy at all. This StrongFolder vs Tresorit Send comparison lays out the facts so you can pick by your actual risk. **Key facts** - **Tresorit Send** (as of 2026-11-05): end-to-end encrypted on your device; up to 5 GB and 100 files per upload; links live 7 days; each file can be downloaded up to 10 times. - **Tresorit Send extras:** optional password, e-mail when the link is opened, revocation; servers in Microsoft Azure data centers in Ireland. - **StrongFolder:** files go browser to browser over WebRTC, are never stored on a server, and have no size limit set by the service; whole folders keep their structure. - **Going offline:** with Tresorit Send you upload and leave; with StrongFolder your tab stays open until the download ends. - **Choose Tresorit Send** for confidential files the recipient opens later; **choose StrongFolder** for big files and folders with no stored copy. ## How do StrongFolder and Tresorit Send compare? Tresorit Send facts as of 2026-11-05, from Tresorit's help center (Tresorit Send overview and FAQ) and send.tresorit.com (sources at the end). "Not stated" means Tresorit's own pages don't say. | | StrongFolder | Tresorit Send | |---|---|---| | Model | Peer-to-peer, browser to browser | End-to-end encrypted cloud link | | Stored on a server | Never | Encrypted copy for 7 days | | Size limit | None set by the service | 5 GB per upload, up to 100 files | | Downloads | Several recipients from one link while you share | Up to 10 downloads per file | | Link lifetime | While you share; Stop Sharing ends it | 7 days, or revoke earlier | | Sender can go offline | No — tab stays open | Yes, after the upload | | Encryption | DTLS in transit (WebRTC) | Client-side, end-to-end, AES-256; key in the link | | Password on a link | Not at the moment | Optional | | Notification when opened | Shows how many users are connected | Optional e-mail | | Whole folders with structure | Yes, no ZIP | Not stated | | What you provide | Nothing | Your e-mail address, verified via the admin link | | Data location | Files not stored | Microsoft Azure data centers in Ireland | | Price | Free | Free ("freemium product") | ## How does Tresorit Send protect files? Tresorit's FAQ says Tresorit Send uses client-side, end-to-end encryption: files are encrypted with AES-256 on your device before upload, and the decryption key is part of the download link and never stored on Tresorit's servers. You can add a password and, for best protection, send the link and the password through different channels. The encrypted copy sits in Microsoft Azure data centers in Ireland. Links are available for 7 days, then files are deleted automatically, and Tresorit says stored content and related metadata are removed from its system 14 days after a link expires. You can revoke a link at any time from the admin link sent to your e-mail. ## How does StrongFolder protect files? By not keeping them. Files are never uploaded to or stored on a StrongFolder server. WebRTC encrypts every data channel with DTLS, so the file stream is encrypted in transit on every connection. If a direct connection is impossible (strict corporate firewall, some mobile networks), the encrypted stream passes through a StrongFolder relay (TURN) server. The relay forwards the data and does not store it. To create the link and run the service, we keep transfer metadata: file and folder names, sizes and the number of files, plus the IP address and country of the sender and the country of each recipient. We describe our protection as encryption in transit, not end-to-end encryption with your own key — there is no password option at the moment, so treat the link like a key and click **Stop Sharing** when the recipient is done. See [security](https://help.strongfolder.com/en/security/) and the [DTLS](https://help.strongfolder.com/en/glossary/#dtls) glossary entry. ## Which is more secure: E2EE cloud or P2P without storage? They answer different threats. - **Worried about a stored copy being breached?** Tresorit Send's copy is encrypted with a key only the link holds. StrongFolder has no copy at all. - **Worried about the link leaking?** Tresorit Send adds an optional password, open notifications and revocation. With StrongFolder, a leaked link works only while you are sharing; stopping sharing ends it. - **Bound by rules on where data sits?** Tresorit names its data location (Ireland). StrongFolder doesn't store file contents anywhere. Many teams use both: an E2EE cloud link for a contract the client opens next week, a direct transfer for a 60 GB folder of raw footage today. More in [secure file sharing](https://help.strongfolder.com/en/guides/secure-file-sharing/) and [P2P vs cloud file transfer](https://help.strongfolder.com/en/guides/p2p-vs-cloud-file-transfer/). [Send files now](https://strongfolder.com) ## What if my files are larger than 5 GB? Tresorit's help center lists 5 GB per upload and 5 GB in total at once, with up to 100 files. Larger transfers need several links or another tool; for more storage and advanced features, Tresorit points to its paid plans. No size limit set by StrongFolder. The practical limits are free disk space on the recipient's device, connection speed, and how long both devices stay online. Because files stream from your disk, a big video project or a folder with thousands of files is sent the same way as one document. See [how to send large files](https://help.strongfolder.com/en/guides/send-large-files/) and [StrongFolder limits](https://help.strongfolder.com/en/limits/). ## Can Tresorit Send keep a folder structure? Tresorit's help center describes selecting files for upload and doesn't describe keeping a folder tree (as of 2026-11-05). For deep project folders, zipping first is the usual workaround with upload services. StrongFolder sends folders as folders. Folders are sent as folders: subfolders and file names are kept, nothing is zipped. Saving a whole folder with its structure uses the File System Access API: Chrome, Edge, Opera and other Chromium browsers on a computer. Other browsers can download the files one by one or as a ZIP. More in [how to send a folder without zipping](https://help.strongfolder.com/en/guides/send-folder-without-zipping/). ## When is Tresorit Send the better choice? Choose Tresorit Send when: - **you need to send and go offline** — the recipient can download any time within 7 days; - **end-to-end encryption** is required by your policy or your client; - **you want a password**, an e-mail when the link is opened, and the option to revoke; - **the files fit** in 5 GB and 100 files; - **your sender identity matters** — the verified e-mail on the download page reassures the recipient. ## Tresorit Send alternative: when is StrongFolder the better choice? Choose StrongFolder when: - **the transfer is over 5 GB** or more than 100 files; - **you're sending a whole folder** that must keep its structure; - **no copy should be stored anywhere**, even encrypted, even for 7 days; - **you don't want to give an e-mail address** — No account needed to send or receive. - **several people** need the files at once: One link can be opened by several recipients; each downloads directly from the sender. The honest trade-off: The sender's browser tab must stay open and online until the recipient finishes downloading — files come from the sender's device, not from a server. See [why the sender stays online](https://help.strongfolder.com/en/guides/why-sender-stays-online/). ## How do I send with StrongFolder? 1. Open [strongfolder.com](https://strongfolder.com) or click the StrongFolder [Chrome extension](https://help.strongfolder.com/en/chrome-extension/). 2. Choose files or a whole folder. Nothing is uploaded first. 3. Copy the link or show the QR code and send it privately. 4. Keep the tab open while recipients download, and click **Stop Sharing** when they're done. See [how it works](https://help.strongfolder.com/en/how-it-works/). ## Summary Tresorit Send is end-to-end encrypted cloud sharing: up to 5 GB and 100 files, kept for 7 days, 10 downloads per file, with passwords, notifications and revocation — ideal when the recipient opens files later. StrongFolder is direct transfer with no stored copy, no size limit set by the service and folders kept as folders, as long as your tab stays open. See also [StrongFolder vs Wormhole](https://help.strongfolder.com/en/compare/strongfolder-vs-wormhole/) and [WeTransfer alternatives](https://help.strongfolder.com/en/compare/wetransfer-alternatives/). ## Sources Checked on 2026-11-05: [Tresorit Send overview (help center)](https://support.tresorit.com/hc/en-us/articles/360007285474-Tresorit-Send-overview) · [Tresorit Send FAQ (help center)](https://support.tresorit.com/hc/en-us/articles/360012183493-Tresorit-Send-FAQ) · [send.tresorit.com](https://send.tresorit.com/) ## FAQ ### What are Tresorit Send's limits? Tresorit's help center lists a maximum of 5 GB per upload, up to 100 files at a time, and up to 10 downloads per shared file; links are available for 7 days, after which files are automatically deleted (as of 2026-11-05). No size limit set by StrongFolder. The practical limits are free disk space on the recipient's device, connection speed, and how long both devices stay online. ### Is Tresorit Send end-to-end encrypted? Yes, per Tresorit: files are encrypted on your device with AES-256 before upload, and the decryption key is in the download link and never stored on Tresorit's servers. StrongFolder doesn't store files at all; WebRTC encrypts every data channel with DTLS, so the file stream is encrypted in transit on every connection. ### Where does Tresorit Send store files? Tresorit's FAQ says its servers are in Microsoft Azure data centers in Ireland, and that stored content and related metadata, such as your settings and e-mail address, are removed 14 days after the link expires. Files are never uploaded to or stored on a StrongFolder server. ### Does Tresorit Send need an account? No Tresorit account is needed, but you enter your e-mail address: it is shown on the download page and receives the admin link used to manage or revoke the share. No account needed to send or receive. ### What is a good Tresorit Send alternative for files over 5 GB? A peer-to-peer tool with no service limit, such as StrongFolder. Files stream straight from your browser to the recipient's, so the 5 GB and 100-file limits don't apply, and whole folders keep their structure. The trade-off: your tab must stay open until the download ends.