About Waza Book
Waza Book is a free reference for judoka preparing to grade: every technique in the syllabus with its Japanese name, what the technique actually is, and the key points an examiner looks for. Tick what you have learned and the site remembers, on your own device.
Technique names, spellings and set groupings follow the Kodokan's Gokyo no Waza; belt colours follow the British Judo Mon scheme. Your club's grading syllabus is always the authority on what your grading requires - if the lists here disagree with your coach, your coach wins.
The site is fully static. There are no accounts, no cookies, no analytics and no adverts; progress ticks live in your browser's own storage and are yours to export or delete.
Suggest a video
A technique, a combination, a counter, a transition and a skill each carry one recommended demonstration and a short list of alternatives, chosen for clear, correct form rather than highlight-reel spectacle. Found a better one? Suggestions are very welcome.
Most pages here are still waiting for their first one, and a combination or counter needs one most: what it looks like is the timing between two throws, which neither technique's own demonstration shows.
Paste the link exactly as you copied it, from the address bar or the share button, and say which page it demonstrates. You do not need a GitHub account's worth of knowledge or any JSON: a maintainer turns the link into an entry.
Suggest a video on GitHub. One thing to check first: the video must be public rather than unlisted, because an unlisted address stops working for everyone else the moment its owner changes it.
Suggest a combination or counter
A combination or a counter relates two techniques, so each one is its own small file in the content repository rather than a line on either technique's page. That is why a throw with none shows an empty section: nobody has written the file yet, and most of the throws here are still in that position.
If you know one - your club's answer to uchi-mata, the combination your coach drills every session - the whole contribution is the two techniques in order and a sentence on why the pair works. A step-by-step narration is welcome and entirely optional.
The template is in CONTRIBUTING.md, and an accepted file reaches this site at its next update.