is there a pre-trained version for "english" dictionary for web use?

[sprappcom]

i have this zstd js https://github.com/101arrowz/fzstd to render decompressed zstd on browser. was wondering if there are "officially" supported english language / dictionary corpus (good enough for web use [and on server]) to minimize "with reasonable processing speed" for the data transfer between server and client browser.

does anyone have such a thing? or where can i find one?