// the find
hfaran/slack-export-viewer
A Slack Export archive viewer that allows you to easily view and share your Slack team's export
A Flask web app that turns a Slack export ZIP into a browseable interface, so you're not manually reading hundreds of JSON files. Handles both the official Slack export format and slackdump output. Primarily useful for small teams on the free Slack plan hitting the 10k message cap.
Static HTML export mode is genuinely useful — you get a self-contained archive you can host anywhere without running a server. CLI is well-designed with environment variable equivalents for every flag, making it scriptable and container-friendly. Active maintenance (last push June 2026 on a niche tool from 2016 is a good sign). The `slackdump` integration means it works around the export permission wall that blocks non-admins.
No attachment or file preview — images and files in your export just don't render, which makes historically rich channels pretty bare. DMs are hidden by default and the feature feels bolted on rather than first-class. The Flask server has no auth, so 'serve to your team' means anyone on the network can read everything. Thread rendering is incomplete — replies show with a note but there's no inline expansion, so threaded conversations are awkward to follow.