All Browsers.
One Backup.

Atlas backs up browser profiles across your system and keeps everything stored locally for full offline control.

Download Atlas View changelog →
Designed to last

Stable by architecture

Every operation is validated before it runs. No hidden writes or surprises. Just reliable archiving.

Sandboxed execution

Atlas runs entirely in user space. No elevated permissions needed, no system-level access required.

Read-only browser access

Zero writes to any browser directory, ever.

Validate before touching disk

Space check, profile scan, and size estimate all run before a single byte is written.

Atomic archive writes

Archives write to a .zip.tmp file, then atomically rename on success. No corrupt partials.

Offline-first

No network calls. No telemetry. No analytics. What runs on your machine stays on your machine.

Cooperative cancellation

Cancel mid-operation at any point of the backup.

Execution model

Ordered. Validated. Safe.

The pipeline never touches disk until all prior checks pass. Each step is independently cancellable.

Permission
check
Config
verify
Scan
profiles
Estimate
size
Disk space
check
Archive
creation
Done ✓
Live scanning

Wide browser support

From Mosaic-era relics to today's nightly dev builds — if it stores a profile, Atlas finds it.

Scanning profiles…
Coverage

What Atlas handles

Atlas works across a wide range of browser environments.

250+
Browser variants discovered
6
Unified package formats
0
Background persistent services
0
Network calls at runtime
What's changed

Changelog

Every release, documented in full.

Coming soon
v1.0 Release
Initial release
The first public release of Atlas, introducing local browser profile backups and offline-first storage.

Built with

Zero external dependencies. Just Qt, Python, and the standard library.

Qt / PyQt
Native cross-platform UI framework
🔧
Python
Core runtime & scripting engine
Zero Dependencies
No pip installs, no node_modules
stdlib only
zipfile, os, shutil — nothing extra