MSG to PST Converter Software for Windows: Free Download

How to Convert MSG Files to PST

1. Add your MSG files

Drag the loose .msg files into the window, or click Add File and pick the whole folder. Nothing here is tied to Outlook, and you do not need it open. Point the app at wherever the messages ended up.

2. Choose PST output

Set the output to PST. Every message you added lands in the same archive, so a scattered set of files turns into one file instead of a folder you still have to dig through.

3. Start the conversion

Click Start. The app reads each .msg, writes a valid Unicode PST, and leaves the originals untouched. Open the result in Outlook with File, Open, Outlook Data File.

What the converter does

Reads a .msg without Outlook

The engine opens each .msg on its own, so a PC on Windows 10 or 11 with no Outlook and no email account still does the job. That is where File Explorer stumbles, since a plain Windows PC has nothing that opens the format.

Keeps the Outlook-native fields

A .msg is an OLE compound file that stores Outlook's own MAPI properties, so the sender, the recipients in the to and cc lines, the dates, and the read or unread flag all come across intact, not flattened the way a plain-text export would leave them.

Pulls embedded attachments across

Attachments sit inside the .msg itself, not as separate files beside it. The converter lifts each one into the message it belongs to inside the PST, so nothing is left behind.

Folds every file into one PST

Add two files or 2000 of them and they all merge into a single archive, with no one-PST-per-file mess to clean up when you are pulling a scattered pile back together.

A PST any Outlook opens

The result is a standard Unicode Outlook Data File that opens in Outlook 2016 and later, with Cyrillic and other non-Latin subjects kept correct.

Who uses MSG to PST Converter

Office workers with saved mail

You have been dragging important messages to a project folder for years. When it is time to file them properly, one PST beats a directory of loose files nobody can dig through.

Support and records desks

Case notes and ticket replies get saved off as .msg and stack up fast. Rolling a batch into a single archive leaves you one file to keep for the record, not a heap of loose messages.

Anyone moving to a new PC

A pile of .msg files copied off an old machine will not open without Outlook. Convert them once and carry all of it as a PST you can open anywhere.

MSG vs EML vs PST: what the converter changes

All three look like email, but Outlook treats them very differently. The table below shows what each one is and where Outlook can open it.

Format	What it is	Opens in Outlook?
MSG	.msg, one Outlook message saved as an OLE compound file, carrying its MAPI fields and embedded attachments	Only where Outlook is installed; a bare PC has nothing to open it
EML	.eml, one message as plain MIME text, the format Outlook Express and many clients use, with no MAPI fields	Not directly; there is no menu to import a loose .eml
PST	.pst, a portable Outlook archive that holds many messages, with folders, in one file	Yes. File, Open, Outlook Data File

Download for Free

MSG to PST Converter Software

Languages

File Size

9 Mb

Version

1.0

Last updated on

25/05/26

$ 19.99

🖥️ System Requirements

Windows 11/10/8.1/8/7 (32/64 bit)
Intel i3, AMD Ryzen 5 or above
4 GB of RAM or above
NVIDIA® GeForce® series 8 and 8M, Intel® HD Graphics 2000, Quadro FX 4800, Quadro FX 5600, AMD Radeon™ R600, Mobility Radeon™ HD 4330, Mobility FirePro™ series, Radeon™ R5 M230 or higher graphics card with up-to-date drivers
1280 × 768 screen resolution, 32-bit color
1 GB of free hard disk space or above

🙋 Frequently Asked Questions

❓ Can I open a .msg file without Outlook?

Yes. The converter reads a .msg with its own engine, so Outlook does not have to be installed or running. You get a .pst you can open in any Outlook, or keep as an archive.

❓ How do I convert MSG files to PST?

Add the .msg files, choose PST as the output, and click Start. Reading the messages and writing the PST both happen inside this app, so a PC with no Office at all can still handle it.

❓ What is the difference between a MSG and an EML file?

Both hold one email, but a .msg is Outlook's own format, a single container that keeps its MAPI fields and attachments tucked inside. An .eml is plain MIME text that most other clients use. A .msg holds more of Outlook's original detail, which is why it lands in a PST so cleanly.

❓ Is a MSG file the same as a PST?

No. A .msg is a single message in one file. A .pst is an archive that holds many messages, in folders, in one file you own. The converter takes a pile of the first and builds the second.

❓ What program will open MSG files?

Outlook opens a .msg, whether it is the desktop app or the Microsoft 365 build, and so does this converter, which needs no Outlook at all. If the goal is to keep the messages long term, converting them to a PST is steadier than counting on Outlook being installed on every PC.