How to open a .pst file (without Outlook)

A .pst file normally demands a Microsoft Outlook installation. This page opens it right in your browser: drop the file, browse the folder tree, read any message with its attachments — nothing is uploaded, everything is parsed locally.

Drag & drop your .pst / .ost file here

it is parsed in this tab — never uploaded

Download a sample .pst

Your files never leave your device — everything is parsed locally in your browser.

How it works

Find your .pst file

Outlook exports land in Documents\Outlook Files by default; old archives often sit on backup drives. Both .pst and .ost (the offline Exchange cache) open here — the format is the same container.

Drop it into the box above

A JavaScript PST engine parses the archive inside this tab — folder tree on the left, messages in the middle, reading pane on the right. No upload, no account, no plugin.

Read, download, export

Read any message with its attachments (single attachments always download free). To keep the mail, export to EML, MBOX, PDF or CSV — free for the first 10 messages, unlimited with a one-time license.

Simple pricing

The viewer and 10-message exports are free. A one-time license unlocks unlimited exports.

Free

Browse every folder, read every message — unlimited
Single attachments download free
Export the first 10 messages as EML zip, MBOX, PDF or CSV — unlimited times
No account, no upload, no watermark

3-month license

$14.99 one-time · 90 days

Unlimited exports — every message, every format
Bulk attachment extraction (.zip)
Cross-folder search
90 days from purchase, never auto-renews

3 months — $14.99 one-time

By purchasing you agree to the Terms of Service and Privacy Policy. Full refund within 14 days if it can't handle your file.

Lifetime license

$29.99 one-time · forever

Unlimited exports — every message, every format
Bulk attachment extraction (.zip)
Cross-folder search
Pay once, use forever — no subscription
Support a small independent tool

Lifetime — $29.99 one-time

By purchasing you agree to the Terms of Service and Privacy Policy. Full refund within 14 days if it can't handle your file.

Frequently asked questions

What program opens a .pst file?

Normally only Microsoft Outlook (Windows desktop). This page is the alternative: a PST viewer that runs entirely in your browser, so it works on Windows, macOS, Linux and ChromeOS alike — no installation, and the file is never uploaded.

How do I open a .pst file without Outlook?

Drag the file into the box above (or click "Choose .pst / .ost file"). Parsing happens locally in the tab: the folder tree appears on the left, messages list in the middle, and clicking a message shows its body and attachments. That is all — there is nothing to install.

Where do .pst files come from?

Almost always from Outlook: File → Open & Export → Import/Export → "Export to a file" produces one, and older Outlook versions kept their live mailbox in a .pst by default. IT departments also hand them out when mailboxes are retired or employees leave.

Can I open a .pst file on a Mac?

Yes — that is the point of a browser-based viewer. Outlook for Mac cannot import .pst files, but this page parses them locally in any modern browser, so a Mac (or Linux machine, or Chromebook) reads them fine. Export to MBOX afterwards and import into Apple Mail.

Is it safe to open my PST here?

Yes — by construction. The file is read by JavaScript running in your browser tab and is never transmitted; verify it in the Network tab of your developer tools. The only network requests are page loads, an anonymous usage counter, and license validation for paid users.

What's free and what does a license unlock?

Free, forever: opening any .pst/.ost, browsing every folder, reading every message, downloading single attachments, and exporting the first 10 messages in every format (EML zip, MBOX, PDF, CSV), unlimited times. A one-time license (3-month $14.99 or lifetime $29.99) unlocks unlimited exports, bulk attachment extraction, and cross-folder search.