What are some alternatives?
When comparing 4Ins.top and Instaoffline, you can also consider the following products
JustForLink - Simple way to download photos from Instagram to your Mac, PC, tablet or phone from any browsers.
Instaoffline.net - Download and save videos & pictures from Instagram quickly and easily.
Instagram Downloader - Download instagram photos and videos for free
Instagram Video Downloader Online - insta-video-downloader.com is the best free online Instagram video downloader tool.
4K Stogram - Free Instagram Downloader for macOS, PC and Linux. Search, download or backup Instagram photos shared by any user. Follow your favorite photographers and stay tuned!
Save From Web - Instagram story, photo, and video downloader - Free, online, and one-click download.