Free WhatsApp chat to PDF: what’s actually free

What’s free, exactly

• Full preview of your chat once it’s parsed — you can see it laid out correctly before deciding to pay anything.
• A downloadable PDF of the first 100 messages, with a watermark identifying it as a free/preview export.
• Date parsing, participant detection and basic formatting — the same engine used for the paid version.
• Support for both .txt exports and .zip exports (media references shown as placeholders rather than embedded photos).
• No account, sign-up or email required to try it.

What the $9 Case Pass adds

• Removes the 100-message limit — export chats of any length, including 50,000+ message histories.
• Removes the watermark from every page.
• A certification page recording the SHA-256 hash of the exact source file used, plus generation date and message count.
• Optional exhibit label and Bates numbering across the document, useful for court, immigration or HR submissions — see WhatsApp chat to PDF for court.
• Date-range filtering, so the PDF covers only the relevant period.
• Participant rename and phone-number redaction.
• Embedded photos from a WhatsApp media .zip, rather than placeholder text — see WhatsApp chat to PDF with images.
• It’s a one-time payment, valid for a year on the browser you buy it on (with a restore link for other devices) — not a subscription.

Why is any of this free at all?

The honest answer is cost structure: this tool has no server processing your chat, so there’s no per-conversion cost to cover. Parsing and PDF generation happen as JavaScript in your browser, using your own device’s processing power. The only server-side cost is hosting the static site and the Noto font files, which is cheap regardless of how many people use the free preview. That’s different from a service that uploads your file to a server, runs a conversion job, and has to pay for that compute every time — those tools generally can’t sustain a free tier without ads, data collection, or hard limits that push you toward paying quickly.

The $9 Case Pass exists to cover ongoing development and hosting, and because the features it unlocks — certification, hashing, redaction, unlimited length — are specifically the ones people need for something like a legal or immigration submission rather than everyday use.

Why not just use a random free online converter?

A search for “WhatsApp to PDF converter” turns up a long list of sites that ask you to upload your .txt or .zip file to their server. Some of those are legitimate; many give no indication of what happens to the file afterward — whether it’s stored, scanned, used for training data, or simply deleted. A WhatsApp export can include years of a relationship, financial details, medical conversations or anything else two people discussed, so uploading it to an unknown server is a real exposure, not a theoretical one.

Chat to Evidence never uploads the file anywhere. It’s built so that even the free tier runs entirely client-side — you could disconnect from the internet after the page loads and still generate the preview PDF. If you compare tools, it’s worth checking whether a converter says explicitly that files aren’t uploaded, rather than assuming it based on how the page looks.

When the free version is actually enough

If you just want to preview how a short chat looks as a document, or you need to share a small exchange (under 100 messages) with someone informally, the free tier does the whole job — download it and you’re done. The Case Pass mainly matters once you need the whole chat, need to remove the watermark for a formal submission, or need the certification page to establish that the PDF matches an unaltered source file, which most legal, immigration and HR contexts do require in practice.