Insta-stories.com

This website provides a clean interface for the users. Simply go to this link and provide the Instagram username. Now Enter the username if the IG user and press enter, if it’s a public account, you can see their stories and posts straight from the website without providing any pieces of information. The website also provides the ability to download them.
Storyinsta.com

This website looks polished and even has a dark mode. Simply go to this link and type the username in the search field and hit enter. Select the user from the results and view their stories from the website.
Storiesinsta.com

This page allows us to download profile pictures and highlights, along with stories in High definition. Similarly, visiting this link and typing the username into the text box provides us with the story that can’t be downloaded onto out PC/Phone.
Method 2: Private accounts
You may have noticed that this website only allows you to watch stories of public accounts. But to watch stories of private accounts, you need to create an Instagram account and follow the person. Once you follow, you can see their stories without them knowing with an app called stories saver. Follow these steps to do so.
Download the Stories saver app from Google Play store.
[googleplay url=”https://play.google.com/store/apps/details?id=storysaverforinstagram.storydownloader.instastorysaver”]
Login to your account that you’ve created and have followed the person.
Now, select on the person’s stores long press and select save.

After that, you can see the story from your gallery without the person knowing.
Conclusion
So now you know how to anonymously View Instagram stories & posts with or without an Instagram account. As you can see, it’s very easy to do. Although, it’s not illegal to do so, keep in mind to respect others’ privacy and use these services for fun and creative purposes. Hence everything depends upon the person who possesses and harnesses such technology.