PST, MBOX, EML, MSG, EMLX, OST, OLM — upload your file, pick a format, download. Your data stays on European servers and is deleted automatically.
First conversion free · No credit card · No commitment
Simple & fast
No software to install. No account setup required for your first conversion.
Drag & drop your email file — MBOX, EML, MSG, EMLX, OST, OLM, or PST. Files up to 51 GB.
Choose your target format. Our cloud engine converts instantly — metadata, folders, attachments preserved.
Your converted file is ready. Download it directly or receive it by email.
Universal compatibility
Whether you're migrating from Thunderbird to Outlook, archiving Apple Mail, or recovering orphaned Exchange files — MailtoPst handles every major email format.
Your data is protected
End-to-end encrypted
Privacy first
We built MailtoPst with privacy as the foundation, not an afterthought. Your files are processed on European servers and automatically deleted. We never read, analyze, or store your data.
Full regulatory compliance, no exceptions.
No analytics scripts, no third-party trackers on your data.
Your files are purged automatically. No exceptions, no delays.
Military-grade encryption for every file transfer.
Built for real workloads
Cloud-powered conversion with no file size limit worries. Works from any browser, any OS.
Resumable uploads — if your connection drops, pick up where you left off. No file size anxiety.
Folder hierarchy, attachments, read status, timestamps, flags — all metadata intact.
Mac, Windows, Linux, Chromebook — if you have a browser, you can convert.
Our servers do the heavy lifting. No CPU drain, no storage needs on your machine.
ZIP hundreds of files together. Directory structure becomes folder hierarchy in the output.
Most files under 1 GB convert in under a minute. Download immediately or get an email link.
30 conversion paths between 7 email formats. Here are the most common.
Pricing
First conversion free. Pay per use, no subscription, no hidden fees.
1 credit = 1 conversion. Failed conversions are never charged.
FAQ
MailtoPst supports 7 formats: PST, MBOX, EML, MSG, EMLX, OST, and OLM. You can convert between any supported combination — that's 30 conversion paths.
Your first conversion is completely free, no credit card required. After that, credit packs start from just a few euros per conversion.
All files are processed on European servers in France and the Netherlands. They are automatically deleted after 48 hours and are never read, analyzed, or shared.
MailtoPst supports files up to 51 GB per upload, with resumable upload technology — if your connection drops, you can pick up where you left off.
Yes, fully. MailtoPst is GDPR, ePrivacy, and CCPA compliant. End-to-end TLS 1.3 encryption, zero cookies, zero tracking, automatic 48h deletion.
If a conversion fails for any reason, no credit is deducted. You only pay for successful conversions.
First conversion free. No credit card required.