Freedom251 › Secure Cloud Storage
Sefaly
What Sefaly is
Sefaly is a cloud storage service that encrypts files before they leave the browser, with end-to-end encryption and post-quantum key protection. It supports web, Windows, macOS, and Linux, and provides a command-line interface for uploading, downloading, managing, and sharing files on the three desktop operating systems. The CLI can create public links with expiration dates and download limits, as well as direct shares with other Sefaly users; folder sharing is handled in the web app. For files larger than 256 MB, the CLI uses chunked transfers, and its stated format ceiling is around 312 GB per file.
Sefaly uses AES-256-GCM to encrypt files and ML-KEM-768 to wrap per-file keys. Its listed key derivation method is PBKDF2-SHA256 with 600,000 iterations, and it uses Argon2id for password hashing. Sefaly says its servers hold ciphertext and cannot decrypt files. Its privacy policy says it collects account and file metadata, not plaintext passwords or unwrapped private keys. Because content is encrypted end to end, Sefaly says it cannot scan file contents proactively and instead responds to account metadata and user reports. Plans include a free tier with 2 GB and a 100 MB file limit, plus paid options starting at $9.99/mo.
Who it suits
Sefaly suits people who want cloud storage with browser-side encryption and post-quantum key protection across web and desktop platforms. Its CLI and sharing controls may also suit users who manage files from a terminal or need links with expiration and download limits.
What it does well
- Encrypts files in the browser before upload.
- Includes ML-KEM-768 per-file key wrapping.
- CLI supports Windows, macOS, and Linux.
- Chunked CLI transfers support files over 256 MB.
- Free plan includes 2 GB storage.
What to know first
- Free plan limits files to 100 MB each.
- Folder sharing is available only in the web app.
- Pro starts at $9.99/mo.
Limits
The Free plan provides 2 GB of storage and a 100 MB maximum file size. Pro provides 1 TB and Pro Plus provides 2 TB, and both paid plans list no file-size limit.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Billed monthly • Cancel anytime · 2 GB secure storage · 100 MB max file size · End-to-end encryption · Post-quantum security (ML-KEM) · Browser-based encryption · Email support | Free |
| Pro Plus | Billed monthly • Cancel anytime · 2 TB secure storage · No file size limit · End-to-end encryption · Post-quantum security (ML-KEM) · Browser-based encryption · Priority support (24/7) · Advanced sharing controls | $19.99 a month |
| Pro | Billed monthly • Cancel anytime · 1 TB secure storage · No file size limit · End-to-end encryption · Post-quantum security (ML-KEM) · Browser-based encryption · Priority email support · Advanced sharing controls | $9.99 a month |
As sefaly.com lists them, read 10 Oct 2026. The maker's own page has the final word.
Getting started
- Visit https://www.sefaly.com/.
- Choose the Free, Pro, or Pro Plus plan.
- Use Sefaly on the web or a supported desktop platform.
- For terminal workflows, use the CLI on Windows, macOS, or Linux.
- Use the web app for folder sharing.
Verdict
Choose Sefaly if browser-side encryption, post-quantum key protection, and desktop CLI access are central to your storage needs. Look elsewhere if you need folder sharing directly from the CLI or want more than 100 MB per file on the free plan.
Questions
Is Sefaly free?
Yes. Its Free plan costs nothing and includes 2 GB of secure storage.
What do the paid plans cost?
Pro is $9.99 a month, and Pro Plus is $19.99 a month. Both are billed monthly and can be canceled anytime.
Which platforms does Sefaly support?
Sefaly lists web, Windows, macOS, and Linux. Its CLI runs on Windows, macOS, and Linux.
Can Sefaly decrypt stored files?
Sefaly says its servers store ciphertext and cannot decrypt users’ files.
Can I share folders from the CLI?
No. Folder sharing is available in the web app; the CLI supports public links and direct shares to Sefaly users.
Facts from Sefaly's own pages
- CLI
- Sefaly provides a terminal CLI for file upload, download, management, and sharing on Windows, macOS, and Linux. · sefaly.com, 10 Oct 2026
- CLI limit
- The CLI page says folder sharing is available in the web app for now. · sefaly.com, 10 Oct 2026
- Crypto details
- The site lists PBKDF2-SHA256 with 600,000 iterations for key derivation and Argon2id for password hashing. · sefaly.com, 10 Oct 2026
- Encryption
- Files are encrypted in the browser with AES-256-GCM before upload, and per-file keys are wrapped with ML-KEM-768. · sefaly.com, 10 Oct 2026
- Infrastructure
- The privacy policy names Vercel for hosting, Neon for managed PostgreSQL, Cloudflare R2 for encrypted blobs, and Stripe for payment processing. · sefaly.com, 10 Oct 2026
- Key privacy
- Sefaly says its servers store ciphertext and cannot decrypt users’ files. · sefaly.com, 10 Oct 2026
- Large files
- The CLI supports chunked uploads and downloads for files over 256 MB, with the page stating a format ceiling of around 312 GB per file. · sefaly.com, 10 Oct 2026
- Privacy
- The privacy policy says Sefaly collects account and file metadata, but does not receive plaintext passwords or unwrapped private keys. · sefaly.com, 10 Oct 2026
- Product
- Sefaly is a quantum-safe end-to-end encrypted cloud storage service. · sefaly.com, 10 Oct 2026
- Sharing
- The CLI supports public share links with expiration and download limits, and direct shares to Sefaly users; folder sharing remains in the web app. · sefaly.com, 10 Oct 2026
- Support
- The pricing page lists email support on Free, priority email support on Pro, and 24/7 priority support on Pro Plus. · sefaly.com, 10 Oct 2026
- Trust and safety
- Because file contents are end-to-end encrypted, Sefaly says it cannot proactively scan them and instead acts on account metadata and submitted reports. · sefaly.com, 10 Oct 2026
Where Sefaly stands on Freedom251
- Secure Cloud Storage#19 of 30