If you want to post the file itself so it's playable and downloadable within a community:
If you are posting on a personal website or blog and want the file to download immediately when clicked (rather than just opening in the browser): Download File sib.mp4
Go to the desired subreddit, click Create Post , and select the Images & Video tab. Drag and drop your sib.mp4 file there. Note that users can usually only download this using third-party tools or "Save Video" options on mobile. If you want to post the file itself
Use the following code in your post: Download File Use the following code in your post: Download
You can upload the MP4 as a Reel or post by clicking the "+" icon and selecting the file from your gallery. While Instagram doesn't have a native "Download" button for other people's posts, you can use a Linktree in your bio to host a direct download link. 3. Creating an Automatic Download Link (Advanced)