Irmin in the Browser (OCaml/MirageOS)

There is also absurd-sql [1] that is sqlite3 in wasm using IndexDB as storage and it’s faster than IndexDB itself.

The article briefly mentioned about Dream [2] web framework but sadly, the author has stopped maintaining the library and noone has stepped up yet. So the whole web story with OCaml isn’t good yet.

[1]: https://github.com/jlongster/absurd-sql [2]: https://aantron.github.io/dream/

Excerpt: "In this modern age, it's become a necessity to make applications 'offline first.' Offline-First applications function without being affected by the intermittent lack of a network connection."