Legal
This page contains legal information about UltraLog, including licensing, trademark disclaimers, and patent commitments.
UltraLog is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).
This means you are free to:
- Use - Run the software for any purpose
- Study - Access and learn from the source code
- Share - Distribute copies of the software
- Modify - Improve the software and share your changes
With the condition that any modified versions must also be made available under AGPL-3.0, including when offered as a network service.
Full license text: LICENSE.md
UltraLog is an independent, open-source project created for interoperability purposes under fair use principles. This software reads data log files exported by various ECU systems to enable users to analyze their own vehicle data.
The following trademarks are the property of their respective owners:
| Trademark | Owner |
|---|---|
| Haltech | Haltech Engine Management Systems |
| ECUMaster, EMU Pro | ECUMaster |
| AiM, MXP, MXG, MXL2, EVO5, MyChron5 | AiM Technologies |
| Link ECU | Link Engine Management Ltd |
| Speeduino | Speeduino project |
| rusEFI | rusEFI project |
| RomRaider | RomRaider project |
| Subaru | Subaru Corporation |
| MegaSquirt | Bowling and Grippo |
| AEM | AEM Performance Electronics |
| MoTeC | MoTeC Pty Ltd |
| MaxxECU | MaxxECU |
UltraLog is not affiliated with, endorsed by, or sponsored by any of these companies or projects. All product names, logos, and brands are property of their respective owners and are used solely for identification and interoperability purposes.
This software is developed under the principles established by Sega v. Accolade (1992) and similar legal precedents that recognize the legitimacy of reverse engineering for interoperability.
UltraLog:
- Reads publicly exported data - Parses CSV, binary, and other log formats that users export from their own ECU software
- Does not circumvent copy protection - Works only with user-accessible exported data files
- Enables data portability - Allows users to analyze their vehicle telemetry in a unified, cross-platform tool
- Documents format specifications - Publishes technical details for community benefit and defensive purposes
For detailed file format specifications used for interoperability and defensive publication, see: FORMAT_SPECIFICATIONS.md
UltraLog is a community member of the Open Invention Network (OIN), a shared defensive patent pool with the mission to protect Linux and open-source software from patent aggression.
The Open Invention Network is the largest patent non-aggression community in history. OIN acquires patents and licenses them royalty-free to any organization that agrees not to assert its patents against the Linux System.
By joining OIN, UltraLog commits to:
- Patent non-aggression - Not asserting patents against the Linux System
- Community defense - Contributing to a shared defensive patent pool
- Open-source values - Supporting the free exchange of ideas and innovation
As of 2024:
- 3,800+ community members
- 4,500+ software packages protected under the Linux System definition
- Royalty-free cross-licensing for all participants
If you have questions about UltraLog's legal status, licensing, or use of trademarks, please:
- Open an issue on GitHub
- Review the full LICENSE.md
- Home - Wiki home page
- Contributing - How to contribute to UltraLog
- Development - Development setup and guidelines