At work, I needed to read an Outlook .msg file. Since I use a Mac, I quickly realized that this task wasn't straightforward. The official Outlook app on Mac doesn’t support .msg files and instead expects .eml files. Due to sensitive data and company policies, I couldn't download any external software or use a website that uploads files to an external server. That’s why I decided to create my own solution to read the file. Here are the key functional requirements I set for myself while working on this project:
It must display the file’s content;
It must not rely on any server;
It must be fast.
As a result, I created a website https://msg-viewer.pages.dev/ which allows you to read .msg file and has the following features:
Free (Open Source);
No Server, no data sharing;
Extremely Fast;
Works on any device that can open the page.
As mentioned before, the tool is Open Source and you can find a source code on Github.