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AltFTool stands on the shoulders of the open-source community. This page credits the projects we build with and carries the license notices their authors ask for. Thank you to every maintainer.
UI framework and app router powering the whole site.
Utility-first styling layer.
Icon set used across the platform.
Accessible UI primitives (dialogs, menus, switches).
Auth, Firestore content, and storage.
Client-side PDF reading, editing, and generation.
In-browser image compression.
On-device AI features (object detection and more).
Charts in calculators and dashboards.
Code editors in developer tools.
Interactive maps.
Animations and transitions.
Data conversion and file utilities.
Astronomy calculations.
Natural-language text processing.
AltFTool games are original implementations written for this site. Where a game belongs to a classic genre (falling blocks, maze chase, endless runner), only the public-domain game mechanics are used — no third-party code, art, audio, or trademarks. Full provenance notes are kept in our engineering docs for every addition.
If you maintain a project we use and want an attribution updated, contact us and we'll fix it promptly.
