How to Make a Slack Export Readable and Searchable

I finally ran Slack's official export. Waited for the email, downloaded the zip, double-clicked it half-expecting to see my conversations. Instead I got folders of .json files — user IDs where the names should be, long ugly numbers where the dates should be, and links where the actual files used to be. So, plainly: a Slack export is machine data, not a readable conversation. To read or search it, you load it into a viewer that puts the names, threads, and timestamps back, or you keep a readable searchable archive instead of a raw dump.

If you've just done the same thing and you're staring at a folder wondering where your chats went, nothing is broken. That really is what the export is. Let me walk you through what's in there and how to make it legible.

what's actually in that zip

Unzip it and the shape is pretty consistent. One folder per channel — #general, #product, and so on. Inside each folder, one JSON file per day the channel had activity, named like 2026-08-01.json. And a few files sitting at the top level: users.json, channels.json, and some log files.

Open a day file and every message is an object. The text is in there, sure. But the person who sent it shows up as something like U01ABC2DEF, not their name. The time is a string like 1692000000.001200 — Unix epoch seconds, not a date you can read. Mentions inside the text look like <@U04XYZ9QRS>. It's all correct. It's just not for humans.

That's the whole trick of the export. It's built so another program can parse it perfectly. You are not that program.

so why can't you just read it

Three things get in the way, and they stack.

First, the names. The mapping from U01ABC2DEF to "Priya" lives in users.json, in a totally separate file. So to read one sentence you're cross-referencing two files in your head.

Second, the split. A single conversation you remember as one flowing thread might be scattered across thirty daily files in one folder — and if it wandered between channels, across several folders. There's no single "here's the chat" view anywhere in the export.

Third, search. You want to find where someone posted the final invoice. Slack's own search is gone the moment you're outside Slack, and the export gives you nothing in its place. Your operating system's file search will find the word, maybe, in one of hundreds of files — with no thread around it, no name attached, no date you can read. Technically the answer is in there. Practically you can't get to it.

json, csv, excel, or a thing you can actually read

Before you fix any of this, it helps to know what you even want the data to become. These aren't competing products, they're different destinations, and the right one depends on the job.

Format	Good for	Readable as-is?	Search across channels?	Names, threads, dates restored?
Raw JSON (the export itself)	feeding another program	No	No — split by channel and day	No — user IDs and epoch time
CSV	filtering one channel, quick sorting	Barely	One file at a time	Only if you map them first
Excel	pivoting, charting, handing to a non-coder	Barely	Per sheet	Only after you convert it
Visual archive / viewer	reading it back like a chat	Yes	Yes	Yes

So if you're piping the data into some other tool, the raw JSON is already what you want — leave it. If a colleague wants to sort one channel by date in a spreadsheet, CSV or Excel earns its place. But if what you actually pictured when you clicked "export" was reading your conversations again, none of the spreadsheet formats gets you there. You want the last row.

ways to turn the export back into chat

The good news is the export is a documented, well-known format, so people have built things that read it.

The common route is a Slack export viewer — a tool made specifically to take the folder you just unzipped and render it as conversations. The open-source slack-export-viewer (github.com/hfaran/slack-export-viewer) runs the folder into a little local site in your browser, with names filled in from users.json, channels in a sidebar, and threads stitched back together. There are also web-based viewers you drag the zip into (all facts as of 2026-08). If you already have the export in hand and just need to read it a few times, a viewer is honestly the fastest fix.

The DIY route is a script. If you're comfortable with a bit of code, a short script can walk the JSON, swap every U01ABC2DEF for a real name, turn the epoch numbers into dates, and dump the whole thing to CSV or a single readable page. Fiddly, but it's your data, in your format.

Both of these have the same starting point though — you first produced an official export, which on the free plan means public channels only, and admin rights either way. Which brings up the other option, and I'll be straight about it below.

searching everything at once

This is the part that matters most day to day, so it's worth being specific.

A raw export can't be searched as one thing. A viewer that loads the whole export can — you get a search box across everything it rendered, which is a genuine step up. And if you went the spreadsheet route, you can filter within a file, but you're back to hunting file by file across channels.

What none of the export-based routes give you cheaply is search that already knows names, threads, and dates the moment you type — the way Slack itself felt. That takes a copy that was built to be searched from the start, not one you're bolting search onto after the fact.

getting the names and threads back

If you take one thing from all this, take this: readable means three specific repairs, and any tool worth using does all three. It maps user IDs to real names. It converts Unix timestamps to dates and times you recognize. And it re-links replies into the threads they belong to, instead of leaving them as loose messages with a hidden thread_ts field pointing at a parent.

A viewer does these repairs on the export you hand it. That's fine — it just means the quality of the reading experience depends on the viewer, not on Slack. Some do threads well, some flatten them. Try one before you trust it with the archive you care about.

the files aren't really in there

This is the one that catches people out the most, so I'll say it straight. The export usually does not contain your files. Not the PDFs, not the screenshots, not the spreadsheet someone dropped in #finance. What's in the JSON is a link to each file (a url_private URL), and to actually get the file you have to download it separately while that link still works and your account still has access.

On a free workspace this bites harder, because older files can fall out of reach along with old messages. So a "backup" that's only the export can quietly be a backup of links to things that are already gone. If your attachments matter, download the real files while you still can — that's a separate job from reading the messages, and it's easy to assume the export did it for you when it didn't.

a viewer for your export, or an archive of its own

Now the honest fork in the road, because there are two genuinely different approaches and I don't want to blur them.

One approach is a viewer: you run Slack's official export, then open that folder in a tool that makes it readable. The tool reads a file you already produced. That's most of what's above.

The other approach skips the export step entirely. Instead of turning a raw dump into something legible after the fact, you build a readable, searchable copy from the start — directly from the conversations your account can already open. That's what Empowia for Slack does, and I want to be exact about it: it does not import Slack's official JSON export. It reuses the session you're signed into and saves the channels, private channels, DMs, group DMs, and files you can reach straight to your own computer, already legible — names in place, threads intact, dates readable, full-text search across everything, and AI answers that cite the source message using your own API key. No admin, no tokens.

So they solve the same feeling from opposite ends. A viewer rescues an export you've already got. Empowia never makes you decode one. It's fair to flag where this stops, too — it's Windows 10/11 only right now (Mac is coming), and it copies what your account can currently see, so like every tool here it can't resurrect a message Slack has already deleted. It's free up to 20 conversations, then a one-time purchase (around €19.90) lifts the cap.

If you want the export-and-viewer path fully mapped against tools like Slackdump and Backupery, I laid that out in the honest comparison of Slack backup methods, and if your real question is "why not just use Slack's export," that's its own post.

so, do you even need the export?

So where did I land, after my own zip-file letdown? If you've already got the export and you'll read it a handful of times, grab a viewer and you're done — no need to overthink it. But if you found yourself running the export mostly because you wanted your conversations back, readable and searchable, then the export is a detour, not the destination.

That's the exact moment I built Empowia to skip. But before you decide, run one test on the export you already have — pick a single message you actually remember, then try to find it, and time how long it takes. If a couple of minutes of cross-referencing IDs and daily files wears you down, you've got your answer about which side of the fork you're on.