Need help downloading YouTube videos on my Mac

I’m trying to download a few YouTube videos to watch offline on my Mac, but I’m confused about the safest and easiest way to do it. I’ve seen a bunch of shady sites and sketchy apps and I’m worried about malware or breaking YouTube’s rules. What tools or methods do you recommend that actually work well on macOS and are safe to use?

Short version for Mac, with low risk and without shady sites:

  1. Use YouTube’s own offline feature
    • If you have YouTube Premium, use the YouTube app on iPhone or iPad.
    • Download videos there, then use AirPlay or cable to watch on your Mac’s bigger screen.
    • Not perfect, but safest and fully legal.

  2. Use a trusted desktop app
    Avoid random “free download” pages. Many bundle adware.
    Three Mac apps with decent reputations so far:
    • Downie (paid, Mac App Store / developer site)

  • Drag and drop a YouTube URL
  • Picks best quality
  • Frequent updates
    • iTubeDownloader or similar
  • Check recent Reddit or forum threads to see if people still trust the latest version
    • VLC (free, open source)
  • More steps and a bit clunky, but from Videolan, which many people trust
  • Steps:
    1. In Safari, open the YouTube video
    2. Go to “Develop” menu, then “Show Page Source”
    3. Search for “.mp4” or “video/mp4” and copy the full URL
    4. Paste it into VLC, File → Open Network, then File → Convert / Stream to save
  • This method breaks often when YouTube changes stuff, so expect some trial and error.
  1. Avoid these
    • Browser extensions that ask for broad permissions, like “read and change all your data on all websites”
    • Apps that demand a separate “helper” install with no clear reason
    • Downloaders that show lots of pop‑ups or “system alerts”
    • Sites that force you to click “Allow notifications” or download “installers” instead of a single clean app.

  2. Security tips
    • Only download from official site or Mac App Store.
    • Before installing, search the app name plus “malware” or “reddit”.
    • Use built‑in macOS protections. Keep Gatekeeper on.
    • Run a quick scan with something like Malwarebytes if you installed anything sketchy before.

  3. Legal side
    YouTube’s terms say you should not download except with their own download feature.
    Personal offline watching is common, but still against their rules in many cases.
    Avoid sharing files or reuploading, and avoid bypassing paywalled content.

If you want the least headache, get YouTube Premium, use an iOS device for downloads, and stream to the Mac.
If you want files stored on your Mac, Downie is one of the simpler and safer tools people use right now, even if it costs a bit.

If you’re already side‑eyeing all the shady downloader sites, your instincts are working.

I mostly agree with @sterrenkijker, but I’m not a fan of the “download on iPhone then AirPlay to Mac” workaround. It technically works, but it’s clunky as hell if what you actually want is files on your Mac.

Here are a few other angles that don’t repeat what was already said:

  1. Use a separate “sacrificial” browser

    • Install an extra browser (like Firefox) and only ever use it for “sketch-adjacent” stuff such as online converters.
    • Turn off all password syncing, no logins, no banking, nothing.
    • If it ever gets messed up with garbage extensions, you just nuke that browser, not your whole system.
      This doesn’t magically make shady sites safe, but it does contain the blast radius.
  2. Prefer open source tools over random GUI apps

    • Command line tools like yt-dlp are widely used and actively maintained.
    • Install via Homebrew:
      • Install Homebrew from their official site.
      • In Terminal, run:
        brew install yt-dlp
      • Then something like:
        yt-dlp VIDEO_URL
    • Pros: open source, lots of eyes on the code, no bundled adware, works with tons of sites.
    • Cons: you have to be willing to copy‑paste a few commands.
      If you can handle a Terminal window, this is honestly one of the safest and least janky options.
  3. Sandboxing whatever you install

    • If you do try a new app:
      • Create a separate macOS user account just for that kind of thing.
      • Use that account for testing new “downloaders” first, so they don’t get file access to your main profile by default.
    • It’s a pain, but nowhere near as big a pain as cleaning up malware or adware injected into your main account.
  4. Signs an app/site is not worth the risk
    Beyond what was already listed:

    • The installer size is huge compared to what it claims to do (like a 200 MB “YouTube downloader”).
    • It requires you to install a “system optimizer,” “VPN,” or “antivirus” as part of the setup.
    • It tries to change your default browser, default search, or homepage during install.
    • The website buries the actual download button under three fake green buttons.
  5. Legal / practical reality check

    • Officially, YouTube only allows offline saving through its own Premium / app feature.
    • Unofficial downloads for personal use are extremely common, but still against their Terms.
    • The further you go into redistributing, reuploading, or bypassing paid content, the more you’re asking for actual trouble.
      So if you do this, keep it strictly for private offline viewing and don’t turn it into a mini‑piracy operation.

If you want:

  • “Set it and forget it,” nice UI, Mac‑native: go with a paid, reputable Mac app like the one already named and skip the freeware roulette.
  • “I’m okay with nerdy but safer”: install yt-dlp with Homebrew and live in Terminal for 2 minutes per video.

Everything else (random websites, mysterious .dmg from unheard‑of devs) is basically playing malware bingo.

Skipping what @mikeappsreviewer and @sterrenkijker already covered, here are a few alternative angles that might fit you better if you want safety, minimal jank, and actual files on your Mac.


1. Use a dedicated, non‑“YouTube‑only” media tool

Instead of a pure “YouTube downloader,” look at general-purpose media tools that include YouTube support but are not marketed as “free YT downloader!!”

Think in the same family as Downie, but with broader site support and more focus on media management than just ripping. The idea is:

Pros

  • Typically better maintained and less shady than single‑purpose downloaders
  • Often handle playlists, subtitles, and different audio tracks
  • Some let you auto‑convert to formats like MP4, MKV, or even audio‑only

Cons

  • Usually paid or freemium
  • Feature overload if you only need 2 or 3 simple downloads
  • Still run into the same terms‑of‑service caveats as any downloader

If you ever see such a tool bundled in a “software pack” or “installer manager,” skip that copy and go find a standalone dmg or Mac App Store build.


2. Think about “how much automation you really need”

A lot of the sketchy apps get away with nastiness because they promise 1‑click magic. If you are willing to accept “2 or 3 clicks + copy/paste,” you can avoid most of the garbage.

Ask yourself:

  • Do you need auto‑download of whole channels and playlists, or is it 1–2 videos per week?
  • Are you OK with occasionally fixing something when YouTube changes?
  • Do you care about 4K + HDR, or is 1080p enough?

If it is just occasional use, even a slightly fiddly but reputable solution is better than a super slick unknown app.


3. Where I slightly disagree with the others

  • I would not rely on browser‑based converter sites at all, even in a “sacrificial browser.” They are too often monetized with sketchy ad networks and drive‑by downloads. Containing the damage is good, but not needing to fight damage is better.
  • I also think the “download on iPhone, then AirPlay to Mac” flow is only worth it if you already have Premium and you mainly watch on your phone anyway. If your main target is the Mac, I would put that money and effort toward a clean Mac solution.

4. Practical safety checklist before installing any downloader

Even if the app looks legit:

  1. Check the developer

    • Do they develop anything else for macOS, or is this their only mystery “downloader”?
    • Search their name plus “adware” or “installer” to see if there are complaints.
  2. Inspect the installer

    • Size wildly larger than expected is a red flag. A simple downloader should not need hundreds of megabytes.
    • If you see options like “improve your browsing with our secure search” or anything changing your homepage, cancel immediately.
  3. First launch behavior

    • Honest apps normally do not ask for admin password right away unless they clearly explain why.
    • If it pushes you to install extra “services” or “boosters,” quit and delete.
  4. Network and resource usage

    • After your first test download, watch Activity Monitor. Random CPU spikes or constant network chatter when idle are warning signs.

5. Where this leaves you

If you want:

  • Maximum legality and zero stress: follow the official route that @sterrenkijker outlined and stay within YouTube Premium’s ecosystem.
  • Maximum control and offline files on the Mac: pick one reputable Mac‑native tool or a well‑known, frequently updated cross‑platform downloader and stick with it, rather than hopping between random “free download” apps.

Whichever you choose, treat any new downloader like you would an unknown USB stick: one trusted source only, read recent user reports, and if it ever tries to install something unrelated, back out.