If your goal is to watch trending videos without burning through data, here are legitimate alternatives that work well with Opera Mini:

Opera Mini is a legitimate, lightweight mobile browser developed by Opera Software. It uses cloud compression to reduce data usage by up to 90%, making it ideal for 2G/3G networks, prepaid data plans, and older Android phones. Users search for "Opera Mini download" because they want:

If a site allows streaming but not download (e.g., Facebook videos), you can use Opera Mini’s data compression to buffer once, then play offline? No—Opera Mini does not save videos locally. Instead, use a trusted offline video saver like VidMate (from official site only, but be cautious) or the built-in download feature in browsers like UC Browser (though UC has its own privacy issues).

Best advice: For personal, legal downloading, keep it simple—use YouTube Premium (paid, true offline video saving) or free alternatives like NewPipe (open-source, for YouTube without ads, but install from F-Droid only).