End-to-end encrypted
Files, names, and folder structure are encrypted on your machine with AES-256-GCM before anything leaves it. We never receive your data or your keys - and cannot, by design.
Encrypted backup you control
Your files, backed up and encrypted on storage you own.
Nyx Backup is end-to-end encrypted backup and recovery for Windows, macOS, and Linux. You choose the destination, you hold the keys, and you restore any file, folder, or snapshot right in the app - exactly as it was.
Backup that respects your data and your wallet
All the reliability of a modern backup tool, with none of the lock-in - because your files sit on infrastructure you already control.
Your storage, your choice
Bring your own destination: Amazon S3, Backblaze B2, Wasabi, Azure Blob, Google Cloud Storage, any S3-compatible service, SFTP, SMB, Google Drive, OneDrive, Dropbox, or a local / network drive.
Fast incremental backups
Content-defined chunking and compression mean only what actually changed is uploaded - after the first backup, runs are quick and cheap on bandwidth.
Windows, macOS, and Linux
One backup tool across every desktop you use, with a native app, a terminal interface, and a command line - each fully localized in 24 languages.
No phone-home
Your license is a signed file verified entirely on your own machine - offline, no account, no validation server. Usage telemetry is anonymous and can be switched off.
No lock-in, ever
Your backups live on storage you own, written in a documented, versioned format. You restore in the app - fast - and your data is never trapped in a proprietary black box.
Three reasons you can trust it with your only copy
Most backup tools ask you to take their word for it. Nyx Backup is built so you don't have to.
You hold the keys
Everything is encrypted on your machine with a key derived from your passphrase. We never receive your files or your keys, so we could not read your data if we were asked to.
You own the storage
Your encrypted backups go straight to a storage account you control. Nothing passes through us, and nothing depends on a subscription with us to stay readable.
A published, open format
The on-disk format is documented and versioned, so your data stays independently recoverable for the long haul - never locked inside one proprietary program.
How it works
Set it up once in a few minutes; it runs quietly after that.
Point it at storage you own
Connect a cloud bucket, a drive, or a server. You hold the account and the keys; Nyx Backup just writes encrypted blobs into it.
Pick folders and a schedule
Choose what to protect and how often. Nyx Backup snapshots your files - even open, locked ones - and keeps versions per your retention rules.
Restore anything, anytime
Browse your snapshots and restore a file, a folder, or everything - on this machine or another - right in the app, exactly as it was.
Ready to protect your files?
Download Nyx Backup and start a free 60-day trial. No account required.
Download for your platform