Slack export reader
A Slack export is a folder of JSON, one file per channel per day, with every message attributed to something like U024BE7LH. Upload the .zip and read it as channels and threads, with the names resolved, or take it away as a PDF.
Your export
A WhatsApp export (.zip or _chat.txt), an .mbox, or a Slack export .zip.
Nothing connects to your workspace
No OAuth, no bot token, no app for an admin to approve, and no access to anything you did not upload. The export you already downloaded is the entire input. That matters most in the case this is usually for: reading a workspace you have been shut out of, or one that is being wound up.
What gets resolved
users.jsonis read, soU024BE7LHbecomes the display name and<@U024BE7LH>inside a message does too.- Threads are rebuilt from
thread_tsand shown under their parent rather than scattered through the day. - The per-day files of each channel are stitched back into one continuous conversation.
Getting the export
A workspace owner exports from Settings → Import/Export Data. On the free plan that covers public channels. Whatever the export contains is what the archive contains, and the message count is shown before you pay, so you can check it is the right one at no cost.
How this compares
$6 for the export you are converting, whether it is fifty messages or five years of them — priced per archive, not per page or per message, with nothing recurring and no account required.
- ChatToPDF — $7 / $14 / $29 / $49 / $99 per conversion, by message count
- WaChat2PDF — free for the latest 300 messages, then single-chat or lifetime unlock
- Legacy desktop suites — $30–40/year
Taken from their own pages on 2026-09-08.
What is genuinely different here
No account is required. Your export is deleted as soon as the archive is delivered, and within 24 hours if you never pay. An account is offered after your archive arrives; declining it changes nothing about the job you paid for. The desktop alternatives take a different route to the same privacy: they never upload anything, but they want a cable, a full-device backup and an install, at $30–40/year. Seeing the message count before paying is the floor for this category rather than a reason to pick us — the difference is that the count does not change the price.
Where they do more
ChatToPDF transcribes voice notes and this does not. Their $49 tier turns the audio in a WhatsApp export into text inside the document. Voice notes here are listed as attachments, not transcribed.