Download portable PST file viewer FREE

best portable PST viewer tools free download

If you want to view, read, and open Outlook PST files without Outlook installation, you should use a portable PST file viewer.

In this post, I have reviewed 8 best portable PST viewer tools available right now that you can download and use for free.

The uses of PST viewer

An ideal PST viewer lets you search, view, and read Outlook PST files data, sort emails, save scanned copy of corrupted and damaged PST files, export PST to varied file formats, and so on.

A PST file viewer portable tool does all the above-mentioned tasks but it does not require any MS Outlook installation!

That is why many users prefer the PST viewer portable version.

Anyway, now let me dive into the main topics.

Which one is the best portable PST file viewer software available right now? Can we use it for free? Which operating systems (Microsoft Windows and Outlook) does it support?…

I hope, after reading this post, you will get the answers to all your queries.

To save your time, check this top list first.

 8 Free portable PST viewer tools

Now, let me introduce all these portable tools one by one.

SysTools Outlook PST Viewer

SysTools Outlook PST Viewer portable

SysTools Outlook PST Viewer is among the best tools, especially designed to open PST files without Outlook installation.

This Outlook Viewer supports Microsoft Windows 10 (32-bit and 64-bit), Windows 8.1, 8, 7, and even Vista. SysTools Outlook PST Viewer is fully compatible with Microsoft Outlook 2000, 2002, 2003, 2007, 2010, 2013, 2016, 2019. You can download it for free to view, read, and transfer all PST data files.

SysTools Outlook PST Viewer is available in 3 different packages — Free, Pro, and Pro+. To get all the premium features, you must buy the Pro+ version.

This Outlook Viewer enables you to search, add, split, and export PST files. With this software, you can export PST files in different file formats (PST, PDF, EML & MSG). It lets you preview emails with attachments and browse Outlook BAK file. The software is available for free installation on multiple computers as well.

It is a versatile tool that lets you preview the data files in multiple preview modes like Normal View, HTML View, Attachment View, Message Header View, etc.

With SysTools PST Viewer, you can view corrupted PST files, and then save its scanned copy. The software can easily fetch emails with attributes like name, mobile number, and other details available in PST files.

Since it is a PST viewer portable software, you can use it to deal with PST files without Outlook installation or configuration.

Aryson PST Viewer

Aryson PST Viewer software portable

Aryson PST Viewer is another good contestant in the race of the best PST viewer portable software.

The free version of Aryson PST Viewer lets you view, read, and open normal and damaged Outlook PST files (emails, contacts, attachments, calendars, journal entries, etc.). But to save the data files, you need to buy their paid version.

Aryson PST Viewer software comes with a simple but powerful GUI (Graphical User Interface). You can easily open larger files with this tool. It supports both UNICODE and ANSI PST files.

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The software allows users to save PST data files in PST, EML, DBX, MSG, and MBOX formats.

Aryson PST Viewer is fully compatible with Microsoft Windows 10, 8.1, 8, 7, Vista, Windows XP, Windows 2000, and other older versions of Windows operating system. It supports all MS Outlook versions as well.

The good news is that, by using this program, you can manage PST files without Outlook installation!

PST Walker

Free PST reader tool PST Walker

PST Walker is another good portable plus installable tool in my top list.

It is a premium PST viewer and email recovery software that supports both PST and OST files.

Because of its simple GUI, it is easy to use both for novices and professionals.

Note that, PST Walker is better than its rivals when it comes to search permanently deleted items from your mailbox!

Key features of PST Walker

  • It can open encrypted and password protected PST and OST files
  • It can open corrupted and severely damaged PST and OST files
  • It lets you search, view, print, and export emails — no Outlook installation is required.
  • It can recover deleted PST and OST files in Outlook.
  • Available in portable and installable versions.
  • Supports larger files (2 GB+)
  • It can export PST files to MSG and EML formats
  • Can read message header details

PST Walker supports all versions of Microsoft Outlook. It is fully compatible with Windows 10/8/7/Vista/XP.

SysInfo PST File Viewer

SysInfoTools PST File Viewer is a reliable, free, and portable tool you can use to view, read, and open PST files (emails, contacts, notes, calendars, journal entries, etc.) without Outlook installation.

Free SysInfo PST Viewer tool runs on Microsoft Windows 10, 8.1, 8, and 7 (32-bit & 64-bit). It is fully compatible with all versions of MS Outlook.

The software is a good choice to view healthy and corrupt PST data files for FREE, to export PST files data in HTML format, to fix alignment errors in PST files, to handle PST files without installing MS Outlook, to create Log file report in TXT format, etc.

One of the significant drawbacks of SysInfo PST File Viewer is — the tool does not allow you to save PST files. To do so, you need to download an extra tool to repair the PST files.


PstXplorer free PST reader tool

PstXplorer is a completely free portable Outlook PST file viewer. It does not matter if the PST file is in good condition, corrupted, or damaged, this tool can easily operate them.

The software supports all MS Outlook versions. It is compatible with Windows 10, 8, 7, Vista, and XP. PstXplorer runs on macOS as well. PstXplorer free PST viewer is a simple tool. It can open and read PST files data of ANSI and UNICODE.

The software supports larger PST files (20 GB+). It can open several files at a time as well.

If you have Java Runtime on your PC, you can use this tool from USB too.

BitData PST Viewer

BitData PST Viewer free portable PST file reader

BitData PST Viewer is another free portable PST file reader from BitDataSoft.

To view, read, and open PST without installation or configuration of MS Outlook, you can use this secure software without any hesitation.

The software is fully compatible with all MS Outlook versions (from the newest to the oldest). It runs on Windows 10, 8.1, 8, and 7 (32-bit & 64-bit).

BitData PST Viewer lets you operate emails, contacts, notes, calendars, journal entries, etc. for FREE.

No matter if the PST files (ANSI & UNICODE) are password-protected, corrupted, damaged, or encrypted, this software can open and read all data files.

OST PST Viewer

Free OST and PST reader software download

OST PST Viewer is a free tool to view, open, print, and export OST and PST data files (mails, contacts, notes, calendars, journal entries, etc.) without Outlook installation.

You can use this software to operate PST files in all Outlook versions. But it supports OST files with IMAP, Exchange, and Exchange ActiveSync.

OST PST Viewer runs on PC with Windows 10, 8, 7, Vista, and Windows XP operating system.

With this program, you can export OST and PST files data to PST, ICL, MSG, and VCF formats. It is a good PST to OST, or OST to PST converter.

MailsSoftware Free PST Viewer Tool

MailsSoftware Free PST Viewer Tool

MailsSoftware Free PST Viewer Tool is the last one in my list of PST viewer portable software.

With the free version of this software, you can view, read, and open mails, contacts, notes, tasks, calendars, journal entries, meetings, etc.

No MS Outlook installation is required. But to export PST data, you must use the PRO version.

You can operate orphaned, unreadable, inaccessible, corrupted, or damaged, encrypted, and password-protected PST files of any size.

The software supports both ANSI and UNICODE PST files. It is fully compatible with all Outlook versions. MailsSoftware Free PST Viewer Tool runs on PC with Windows 10/8.1/8/7/Vista/XP.


The above-mentioned portable PST file viewer tools are available in FREE and PRO versions. Before finally going for any PRO version of those PST file viewer portable programs, it is better to test out the free version, for sure.

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About Benojir

This is Benojir – a blogger, interested in writing authentic and non-biased reviews about software, apps, tools, digital products, online services, etc. I have several published articles in

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