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[BUG] Large chats with media don't import at all #90
Description
I was trying to import a chat (zip file along with media) but nothing happens when I do that. The size of the file I'm importing is about 3.5GB. It seems like the app is doing nothing when I import that file. When I load a ZIP file that's 1.5GB, the app loads for a while but it eventually works.
The chat has about 2500 actual media and thousands and thousands of stickers (which also count as images I guess). And there are about 85000 messages.
Let me know if I can help somehow to help debug the issue.
Activity
[-]Large chats with media don't import at all[/-][+][BUG] Large chats with media don't import at all[/+]rodrigogs commentedon Oct 13, 2026
Triage update (2026-10-13): this remains a valid bug. The current import path still reads the entire archive into an
ArrayBufferand then passes it toJSZip.loadAsync(), so a 3.5 GB ZIP is resident before lazy media handling begins. That load stage also has no progress callback, which explains the apparent stall. I found no streaming implementation, large-file regression benchmark, or candidate PR yet.The durable fix needs incremental ZIP processing in a worker plus a representative large-file benchmark. Please do not upload the private archive; browser/OS, available RAM, and whether the desktop or web build was used would still help characterize limits.