Batch EML/MSG → court-ready PDFs with full headers, page numbers and a SHA-256 index. Everything runs in your browser.
Most "free converters" are upload forms. This is a static page: once loaded, it never talks to a server again. Don't trust us — trust your Wi-Fi switch.
Parsing, PDF rendering and ZIP packaging all run inside this tab. There is no upload endpoint because there is no server to receive one.
See how it works →Load this page, switch off your Wi-Fi, drop your files in. Everything still works — because your emails never go anywhere.
Try the demo →Every export ships a CSV manifest with a SHA-256 checksum of each source file — a tamper-evident chain from native email to produced PDF.
Read the spec →No subscription — the licence is yours for good, with free updates for a year.
Just one case? Convert up to 100 files for $19 — buy a single batch
| This tool | MailDex | CoolUtils TMC | Online converters | |
|---|---|---|---|---|
| Your files stay on your device | ✓ | ✓ | ✓ | ✗ uploaded |
| No installation | ✓ | ✗ .exe | ✗ .exe | ✓ |
| Works on Mac & Windows | ✓ | ✗ | ✗ | ✓ |
| Batch conversion | ✓ | ✓ | ✓ | limited |
| SHA-256 index of every file | ✓ | ✗ | ✗ | ✗ |
| Price | $49 once | $139 | $99 business | $6–9 / month |
| Subscription? | Never | No | No | Yes |
Short answers; the full list lives on each guide page.
No. There is no server-side component — conversion is pure client-side JavaScript. Once the page has loaded you can go offline and keep converting in the open tab.
No. The converter parses Outlook's binary format directly in the browser — on Mac, Windows or Linux, with no Microsoft software or subscription.
No — deliberately. The original Date header with its source timezone offset is preserved; normalising it would discard information.
Batches of up to ~200 files keep the browser responsive. The free tier exports the first 5 PDFs per batch; Pro is unlimited.