Cratewell
Client 4.8 · faster first sync

A private cloud for your files. Nobody else’s.

Cratewell keeps every device in sync and every version backed up — end-to-end encrypted, with no upload caps and no throttling on multi-terabyte libraries.

Get 100 GB free How it works

macOS, Windows, Linux, iOS and Android · No card required

End-to-end encryptedKeys never leave your devices
Block-level syncOnly changed blocks are sent
No file size capTested with single 2 TB files
Version history30 days free, up to 10 years
Why Cratewell

Built for one person with a lot of data.

Most cloud drives are tuned for documents and shared folders. Cratewell is tuned for the other case: one owner, several machines, and terabytes of photos, footage, projects and server dumps.

Always-on sync

The client keeps one persistent, multiplexed connection open, so a change on one machine lands on the others in seconds — not on the next poll.

Full-speed transfers

No per-account throttling and no daily caps. Parallel block streams fill a gigabit link in both directions.

Zero-knowledge encryption

Files are encrypted on your device before upload. We store ciphertext only and can’t read, scan or index what’s inside.

Versions & rollback

Every save becomes a version. Roll a single file or a whole folder back to any minute — after a bad edit, or after ransomware.

Smart placeholders

Keep a 4 TB library visible on a 256 GB laptop. Files download when you open them and are evicted when space runs low.

Headless backup

Run cratewell-agent on servers and NAS boxes: scheduled snapshots, retention rules and restores straight from the command line.

How it works

Set it up once. Then forget it exists.

The desktop apps do this with a few clicks. On servers, it’s three commands.

Sign in this device

Authorize the machine in your browser. Its encryption key is generated locally and wrapped with your password.

$ cratewell login
Opening browser to authorize…
✓ Signed in · device studio-pc

Pick what goes in the crate

Add folders, drives or mount points. Cratewell indexes them once and then only watches for changes.

$ cratewell add ~/Projects ~/Photos
indexing… 412,880 files
✓ 2 folders · 1.27 TB queued

Let it run

The client stays connected in the background and streams changes as they happen, day and night.

$ cratewell status
● connected  eu-central
  ↑ 48.6 MB/s  ↓ 12.1 MB/s
  2 folders · 3 pending
Where your data lives

EU storage, your choice of region.

Pick a region when you create your account. Blocks are stored three times across two availability zones and never leave that region.

  • Frankfurteu-centralAvailable
  • Helsinkieu-northAvailable
  • Amsterdameu-westAvailable
  • Ashburnus-eastEarly 2027

What happens to a file

  1. Split & encrypted on your deviceContent-defined blocks, 1–16 MiB, sealed with XChaCha20-Poly1305
  2. Streamed over one long-lived connectionTLS 1.3 on port 443, multiplexed, resumes after network changes
  3. Deduplicated at the sync gatewayBlocks we already have for your account are skipped, not re-sent
  4. Stored three times in your regionTwo availability zones, checksummed and scrubbed weekly

Move your files into a crate you control.

100 GB free, for as long as you like. Upgrade when your library outgrows it.

Create free account