Privacy By Design
Gantto was architected from day one as an offline-first tool. Your data never leaves your computer.
Last Updated: August 28, 2026
Local Storage Only
All project names, task titles, dependencies, and progress metrics are stored locally inside your browser.
Zero Tracking & Telemetry
We do not track your behavior, log your sessions, or run background analytics scripts.
Complete Data Ownership
You have 100% control over your timeline data. Export to JSON or CSV anytime or purge with one click.
No Account or Cloud Sync Needed
Gantto works instantly out of the box without registration, passwords, or credit cards.
Storage API Implementation
The Chrome Extension utilizes the chrome.storage.local API, and the Web Application utilizes the standard HTML5 localStorage API.
- No cloud databases or sync endpoints are invoked.
- Data remains isolated within your local browser profile.
- Clearing browser storage or uninstalling removes stored data completely.
Network Communication
Gantto operates with zero background HTTP/WebSocket calls. NLP task parsing, CPM calculations, and timeline rendering are executed 100% client-side in pure JavaScript.
Open Source Transparency
Gantto is published under the open-source MIT License. You can inspect all application source code, algorithms, and dependencies on GitHub at carthworks/gantt-pro.