Completely Offline HTML Export

[andonagio]

Greetings,

I need to create an archive of a Slack workspace that is 100% offline (meaning all avatars, image previews, images, and other files are locally stored) and in HTML format, as the archive needs to be shared with others who may not have Slackdump or a reliable internet connection. (Slack is getting ready to delete old content from its servers, anyway.)

Is there a way to accomplish what I want to do using Slackdump (either alone or in combination with other tools)? I've been playing around with the "export" and "archive" options, but there always seems to be some limitation: either I can't generate an HTML file, or some images (particularly avatars and file previews) aren't downloaded, or the JSON/HTML files still point to the server copies of the media assets instead of the local copies.

I can confirm I'm using the latest version of Slackdump:

Slackdump 3.1.11 (commit: b15e35d8) built on: 2025-12-14T10:59:36Z

Please let me know. Thanks!

[rusq]

Hey @andonagio , yes, this was raised couple of times in the past, see #416. Right now it's not possible without the use of external tools. But it's on the "roadmap" for Slackdump.