ACENji Tech Solutions Inc., a Delaware company, is building the world's first complete taxonomy of fighting techniques across all martial arts — a proprietary knowledge platform unlike anything that exists. Join our team as a pro bono contributor and help shape the future of martial arts education.
* The 15,000 figure is an evolving estimate. The true number of distinct techniques across all martial arts has never been counted — that's exactly what we're building.
You train or deeply study a martial art. Help us verify technique names, add missing entries, and ensure accuracy for your style.
Ideal: BJJ/MMA/Judo/Karate/Kung Fu practitioners, martial arts bloggers, Reddit contributors
You love organizing knowledge into systems. Review our 7-level technique classification tree and help us get the hierarchy right.
Ideal: Librarians, biologists (taxonomy is your language), Wikipedia editors, ontology nerds
Write clear, engaging descriptions for techniques and martial arts. Turn raw data into encyclopedia-quality articles.
Ideal: Martial arts journalists, sports science students, Medium/Substack writers
Help us get original terminology right. Many techniques have Japanese, Chinese, Korean, Russian, Portuguese, or Thai names that need verification.
Ideal: Native/fluent speakers who also train martial arts. Priority: Japanese, Chinese, Russian, Portuguese, Korean
Help build the platform. Next.js 15, React 19, PostgreSQL, Tailwind. Work directly with our engineering team.
Ideal: Full-stack or frontend devs who want real-world experience on a unique product
Find and submit the best instructional videos for each technique. Every technique page supports embedded video with community voting.
Ideal: Anyone who watches martial arts content on YouTube and knows quality instruction
Tell us about your martial arts background and how you'd like to contribute. All contributors sign a simple NDA to protect the project's proprietary data.
We'll match you to an area that fits your expertise. Review entries, add missing techniques, improve descriptions, or submit reference videos.
All contributors are credited on the platform. Top contributors earn editor privileges, early access to new features, and a voice in the project's direction.
Fight Encyclopedia by ACENji Tech Solutions Inc. is a work in progress. Even the techniques and martial arts already listed have gaps — missing descriptions, unverified names, incomplete references. We know. That's the nature of cataloging something that has never been fully cataloged before.
What we do have is a solid foundation: a working platform, a 7-level taxonomy structure, 2,055 technique entries across 9 classes, 183+ martial arts profiles, and more than a thousand verified reference sources — academic papers, textbooks, historical archives, and competition rule sets spanning dozens of languages.
We're looking for feedback, contributors, and early supporters who want to help shape this into the definitive resource for martial arts worldwide.
Fill content gaps for existing techniques and martial arts — descriptions, references, videos, images
Expand the taxonomy — add missing techniques across all 9 classes toward the 15,000 target
Multi-language support — Japanese, Chinese, Korean, Russian, Portuguese, Thai, and more
Mobile app development — native experience for iOS and Android
ACENji scale campaign — promoting Fight Encyclopedia worldwide across martial arts communities, gyms, federations, and universities
Tell us which martial art you know and how you'd like to help. We'll review your application and get you onboarded.