Sefaly
sefaly.com
- Free plan
- Windows
- macOS
- Linux
- Web
What Sefaly is
Sefaly is a cloud storage service with end-to-end encryption that it describes as quantum-safe. Files are encrypted in the browser with AES-256-GCM before upload, and ML-KEM-768 wraps each file’s key. Sefaly says its servers retain ciphertext and cannot decrypt users’ files. It lists PBKDF2-SHA256 with 600,000 iterations for key derivation and Argon2id for password hashing. The web service runs on Windows, macOS, Linux and the web, while its terminal CLI supports uploading, downloading, management and sharing on those desktop platforms. CLI users can create public links with expiration and download limits or share directly with Sefaly users; folder sharing remains in the web app. Chunked transfers handle files over 256 MB, with a stated ceiling around 312 GB per file. The Free plan provides 2 GB and a 100 MB file limit. Pro costs $9.99 a month for 1 TB; Pro Plus costs $19.99 a month for 2 TB.
Who it suits
Sefaly suits people seeking browser-encrypted cloud storage with desktop command-line access. The free tier fits smaller storage needs, while Pro plans remove file-size limits and add larger storage.
Good to know, and what to watch
- Browser encryption uses AES-256-GCM
- ML-KEM-768 wraps per-file keys
- CLI supports Windows, macOS and Linux
- Expiring public links can limit downloads
- Free plan includes 2 GB storage
- Folder sharing is web-only in the CLI
- Free plan limits files to 100 MB
- Pro starts at $9.99 a month
Plans
Every plan and priceFree
Pro
Pro Plus
Free plan · paid from $9.99/mo
The verdict
Sefaly offers encrypted storage, command-line transfers, and post-quantum key wrapping across major desktop platforms. Compare the free file-size limit and paid storage tiers with your sharing and capacity requirements.
What the maker publishes
- CLI
- Sefaly provides a terminal CLI for file upload, download, management, and sharing on Windows, macOS, and Linux. source
- CLI limit
- The CLI page says folder sharing is available in the web app for now. source
- Crypto details
- The site lists PBKDF2-SHA256 with 600,000 iterations for key derivation and Argon2id for password hashing. source
- Encryption
- Files are encrypted in the browser with AES-256-GCM before upload, and per-file keys are wrapped with ML-KEM-768. source
- Infrastructure
- The privacy policy names Vercel for hosting, Neon for managed PostgreSQL, Cloudflare R2 for encrypted blobs, and Stripe for payment processing. source
- Key privacy
- Sefaly says its servers store ciphertext and cannot decrypt users’ files. source
- 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. source
- Privacy
- The privacy policy says Sefaly collects account and file metadata, but does not receive plaintext passwords or unwrapped private keys. source
- Product
- Sefaly is a quantum-safe end-to-end encrypted cloud storage service. source
- 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. source
- Support
- The pricing page lists email support on Free, priority email support on Pro, and 24/7 priority support on Pro Plus. source
- 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. source
Checked against the maker's pages on 10 Oct 2026.