It uses a Web Worker to run libzim (compiled as wasm), and the File api to access the local file.
Select a local ZIM file, open your browser console, and wait for the message "wasm initialized" in the console. Afterwards you can use the buttons below.
For now, split ZIM files are not supported.
If you want to do a quick test, you can choose the file wikipedia_en_ray_charles_maxi_2021-10.zim, and use "A/Baby_Grand" as the Path.
ZIM file(s) :
Path : (you can use I/Baby_Grand_Billy_Joel.jpg.webp to test an image, or some other articles from a search below)