
Ketsuin 結印
Type with Naruto hand signs in your browser
What it does
Ketsuin is a real-time hand gesture typing interface inspired by Naruto hand signs. Using your webcam, you can form gestures and generate text instantly — everything runs entirely in the browser with no downloads required. I also added a Jutsu Release Challenge Mode where you can compete on how fast you can perform the correct seal sequence, with a leaderboard for the fastest shinobi.
Does a similar job
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- IMI'm making an open-source platform for learning Japanese2025 · kanadojo.com · ▲288
The idea is actually quite simple. As a Japanese learner and a coder, I've always wanted there to be an open-source, 100% free for learning Japanese, similar to Monkeytype in the typing community. Unfortunately, pretty much all language learning apps are closed-sourced and paid these days, and the ones that are free have unfortunately been abandoned. But of course, just creating yet another language learning app was not enough - there has to be a unique selling point. And then I thought to myself: why not make it crazy and do what no other language learning app ever did by adding a gazillion…

- QQWANJI2024 · byronicalpatrick.github.io · ▲174
Hey HN! I've built this bit of cuteware (software not solving a problem but just for fun) inspired from the patterns made by swipe typing on mobile devices. To me it seemed like the closest thing to an English version of Kanji and it would be cool to consistently recreate those patterns. The implementation is vanilla js to keep things simple (and from a bit of framework fatigue) I'm keen to see how people use qwanji. Any and all feedback welcome!


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