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There are several tools and software programs available that allow you to download videos from Instagram. Some popular options include:

FastSave: This is a free app that allows you to download Instagram videos and photos to your device.
InstaSave: This is a free app that allows you to download Instagram videos and photos in high quality.
VidMate: This is a free app that allows you to download videos from Instagram and other websites.
TubeMate: This is a free app that allows you to download Instagram videos and convert them to different formats.
Instagram Video Downloader: This is a website that allows you to download Instagram videos by entering the URL of the video.
It is important to note that downloading videos from Instagram may violate the platform's terms of service, and it is possible that your account could be suspended or terminated for doing so. Additionally, it is important to respect the intellectual property rights of the content creators whose work you are downloading.