Rhythm Game Tool Developer
I'M KENZYNC
I build open-source tools, converters, and web players for falling-note rhythm games. Bringing classic beatmaps and keysounds back to life on the web!
Interactive 7K Synth
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COOL
Rhythm Projects & Tools
File Converter
Nuxt 3 / TypeScript
osu2jam
Convert osu!mania beatmaps into classic O2Jam chart files (.ojn/.ojm) instantly in your browser.
Web Player & Viewer
Nuxt 3 / Canvas
ojn-viewer
Play and visualize O2Jam chart files (.ojn) directly in your browser with real-time keysound mixing and note playback.
Leaderboards & Stats
Nuxt 3 / Supabase
DM-RIVALS
Compare player rankings, track top scores, and view match history for community rhythm game servers.
Song Database
Supabase / Nuxt 3
ojn-database
Browse, search, and explore O2Jam songs, metadata, and custom chart packages in a single searchable archive.