Coolutils' Mail Viewer is a free program that lets you view MSG, EML, EMLX, P7M, ICS, VCF and winmail.dat (TNEF) files. Although Microsoft's MSG format is great for storing emails, there just aren't many ways to access and view those files outside of the Outlook server Exchange client. Added to that, Microsoft's EML format (associated with Outlook Express) also gives users problems when trying to open and view.
The good news is - we can help! If you're stuck trying to open MSG or EML files but don't have access to your Outlook client, CoolUtils' Mail Viewer is the perfect solution. Not only does it let you open and view MSG and EML files from anywhere; it's free, and by free we mean totally free for home users. No hidden downloads, no ads, no toolbars, no having to pay later: 100% free!
CoolUtils Mail Viewer is also capable of generating a "fact file" related to your emails. Made available to you in your choice of TXT, PDF, XLS, CSV, or HTML these reports are able to provide you with valuable data re: your email activity. All you need to do is choose which fields you'd like to report on; Sender, Recipient, Date, Attachment, etc. Tune the report to your needs by including only specific fields, or examine them all!
Publisher’s description
What is CoolUtils Mail Viewer?
CoolUtils Mail Viewer is a free image viewer program for Windows from Softplicity, Inc..
Installation and requirements
Official installers exist for 32-bit as EXE (Inno Setup). The main installer is 38.3 MB. Installation asks for administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 7.1.9791.36253, released on October 13, 2025. 2 versions are listed since October 13, 2025, each with links to its own installer files. The last update is more than a year old.
Popularity and file types
On Windows it registers 6 file types, including .eml, .ics, .vcf, .p7m and .msg. Similar programs include ImageGlass, QuickLook and Weasis.
Pros / Cons
Pros
- Free to use
- Documented silent install
Cons
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
- No update for more than a year
In short: CoolUtils Mail Viewer is a free image viewer tool for 32-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is CoolUtils Mail Viewer safe to download?
- The file is served by coolutils.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
9558007E351170648FDE486EFA6D9E6246FC6301BF4D0B1FD6B94E1289062FF1· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 7.1.9791.36253Latest | October 13, 2025 | 38.3 MB | 32-bit EXE (Inno Setup) |
| 7.1.9779.1158 | October 13, 2025 | 38.3 MB | 32-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id Softplicity.CoolUtilsMailViewer -eMailViewer.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Softplicity, Inc.
- Category
- Image viewers
- Licence
- Freeware
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 7.1.9791.36253
- Released
- October 13, 2025
- Added to the catalogue
- October 19, 2026
- Versions listed
- 2
- Website
- coolutils.com
- winget ID
- Softplicity.CoolUtilsMailViewer
File types it opens (6)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is CoolUtils Mail Viewer free?
Yes. CoolUtils Mail Viewer is free to use.
Is CoolUtils Mail Viewer safe to download?
The download comes from coolutils.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install CoolUtils Mail Viewer with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can CoolUtils Mail Viewer be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does CoolUtils Mail Viewer run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of CoolUtils Mail Viewer?
The versions page lists all 2 versions with links to their official installer files, back to October 13, 2025.
What are alternatives to CoolUtils Mail Viewer?
ImageGlass, QuickLook, Weasis, MSBuild Structured Log Viewer and LogExpert. The alternatives page compares them.
