atos
The premium Open Source alternative to Bonsai
🎯 Best for:Privacy-conscious freelancers needing local tax and project tracking.
What is atos?
A locally hosted application designed for freelancers to manage projects and estimate personal tax liabilities. It processes invoiced income against local tax brackets to provide real-time financial forecasting.
Tech Stack
PHPFinance & Accounting
Why atos?
- • Local data sovereignty
- • Integrated tax estimation
- • Zero monthly costs
Limitations
- • No cloud sync
- • Manual backup responsibility
- • Single-user focus
2/12/2026
Last Update
4
Forks
0
Issues
AGPL-3.0
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to atos instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Bonsai)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%