About Sigma Exacta: Free Open Source Engineering Platform

Democratizing Access to Professional Engineering Tools

Sigma Exacta is an open source platform specifically designed for product innovation, development and quality control. Our mission is to democratize access to professional-grade engineering software, making high-quality tools available to engineers, students, and professionals worldwide without cost barriers or vendor lock-in. The project has been developed as a public good, and all the software and educational content will be freely accessible and openly licensed.

Privacy-First Engineering Software

Sigma Exacta operates on a local-first architecture where all calculations run directly in your browser. This innovative approach ensures your sensitive industrial data never leaves your device, providing maximum privacy and security. Experience zero latency with instant results, maintain complete control over your information, and benefit from open standards that prevent vendor lock-in while ensuring long-term accessibility.

Open Source Advantage: AGPL v3 License

Sigma Exacta is proudly released under the GNU Affero General Public License v3 (AGPL v3), one of the strongest open source licenses available. This license guarantees complete freedom to use, study, modify, and distribute the software for any purpose while ensuring all modifications and derivative works remain open source. Our commitment to transparency extends to network use rights, ensuring even users interacting with the software over a network receive source code access.

Our open source philosophy extends beyond code to embrace open data and open innovation. By making algorithms, methodologies, and implementation details publicly accessible, we accelerate innovation through community contributions, ensure transparency by allowing engineers to verify calculations, promote education worldwide, build trust through complete visibility, and foster industry-wide best practices.

Development Roadmap

We're continuously enhancing Sigma Exacta with planned milestones including: rigorous model validation for industrial use, export to open formats (LibreOffice, avif, etc), comprehensive educational resources with CC-licensed video tutorials, enhanced local storage for complete offline functionality, Progressive Web App (PWA) implementation for desktop-like experience. Additional engineering modules could be developed based on community feedback and industry needs. Educational videos will be published on a federated PeerTube instance.

Founder & Lead Developer

Javier Casal Gómez, Industrial Engineer from Spain with over 20 years of extensive experience in the transportation sector, having worked with industry leaders including Stellantis, Magna International, and Mahle. A graduate of Universidad de Vigo with advanced qualifications including a Master in Numerical Simulation (UNED) and an MBA in automotive business (PSA Peugeot Citroën).

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Acknowledgments

Wahyudin Syam (Indonesia) - PhD in geometrical metrology and tolerancing from Politecnico di Milano. Currently working at GMV Innovating Solutions (UK office). Contributing to stack-up analysis development.

Website:

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Robert Adunka (Germany) - PhD in design technology, TRIZ Master, and lecturer in innovation methods. Formerly with Siemens AG in methodical product development. Contributing to TRIZ tool development.

Managing director of

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