The Optimized Storage features of your Mac help you save storage space by storing your content in iCloud and making it available on demand:

• When storage space is needed, files, photos, movies, email attachments, and other files that you seldom use are stored in iCloud automatically.
• Each file stays right where you last saved it, and downloads when you open it.
• Files that you’ve used recently remain on your Mac, along with optimized versions of your photos.

If you haven't yet upgraded to macOS Sierra or later, learn about other ways to free up storage space.

Mac App Store is the simplest way to find and download apps for your Mac. To download apps from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Developer Tools. Put imagination and limitless resources to work in creator-built environments or mine deep into the world of sudden peril. GarageBand is a fully equipped music creation studio right inside your Mac — with a complete sound library that includes instruments, presets for guitar and voice, and an incredible selection of session drummers and percussionists.

Find out how much storage is available on your Mac

Choose Apple menu  > About This Mac, then click Storage. Each segment of the bar is an estimate of the storage space used by a category of files. Move your pointer over each segment for more detail.

Click the Manage button to open the Storage Management window, pictured below.

Manage storage on your Mac

The Storage Management window offers recommendations for optimizing your storage. If some recommendations are already turned on, you will see fewer recommendations.

Store in iCloud

Click the Store in iCloud button, then choose from these options:

• Desktop and Documents. Store all files from these two locations in iCloud Drive. When storage space is needed, only the files you recently opened are kept on your Mac, so that you can easily work offline. Files stored only in iCloud show a download icon , which you can double-click to download the original file. Learn more about this feature.
  
• Photos. Store all original, full-resolution photos and videos in iCloud Photos. When storage space is needed, only space-saving (optimized) versions of photos are kept on your Mac. To download the original photo or video, just open it.
  
• Messages. Store all messages and attachments in iCloud. When storage space is needed, only the messages and attachments you recently opened are kept on your Mac. Learn more about Messages in iCloud.

Storing files in iCloud uses the storage space in your iCloud storage plan. If you reach or exceed your iCloud storage limit, you can either buy more iCloud storage or make more iCloud storage available. iCloud storage starts at 50GB for $0.99 (USD) a month, and you can purchase additional storage directly from your Apple device. Learn more about prices in your region.

Optimize Storage

Click the Optimize button to save space by automatically removing watched movies and TV shows. When storage space is needed, movies or TV shows that you purchased from Apple and already watched are removed from your Mac. Click the download icon next to a movie or TV show to download it again.

Your Mac will also save space by keeping only recent email attachments on this Mac when storage space is needed. You can manually download any attachments at any time by opening the email or attachment, or saving the attachment to your Mac.

Optimizing storage for movies, TV shows, and email attachments doesn't require iCloud storage space.

Empty Trash Automatically

Empty Trash Automatically permanently deletes files that have been in the Trash for more than 30 days.

Reduce Clutter

Reduce Clutter helps you identify large files and files you might no longer need. Click the Review Files button, then choose any of the file categories in the sidebar, such as Applications, Documents, Music Creation, or Trash.

You can delete the files in some categories directly from this window. Other categories show the total storage space used by the files in each app. You can then open the app and decide whether to delete files from within it.

Learn how to redownload apps, music, movies, TV shows, and books.

Where to find the settings for each feature

The button for each recommendation in the Storage Management window affects one or more settings in other apps. You can also control those settings directly within each app.

• If you're using macOS Catalina or later, choose Apple menu  > System Preferences, click Apple ID, then select iCloud in the sidebar: Store in iCloud turns on the Optimize Mac Storage setting on the right. To turn off iCloud Drive entirely, deselect iCloud Drive.
• If you're using macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimize Mac Storage settings.
• In Photos, choose Photos > Preferences, then click iCloud. Store in iCloud selects iCloud Photos and Optimize Mac Storage.
• In Messages, choose Messages > Preferences, then click iMessage. Store in iCloud selects Enable Messages in iCloud.

• If you're using macOS Catalina or later, open the Apple TV app, choose TV > Preferences from the menu bar, then click Files. Optimize Storage selects “Automatically delete watched movies and TV shows.”
• In you're using macOS Mojave or earlier, open iTunes, choose iTunes > Preferences from the menu bar, then click Advanced. Optimize Storage selects “Automatically delete watched movies and TV shows.”
• In Mail, choose Mail > Preferences from the menu bar, then click Accounts. In the Account Information section on the right, Optimize Storage sets the Download Attachments menu to either Recent or None.

Empty Trash Automatically: From the Finder, choose Finder > Preferences, then click Advanced. Empty Trash Automatically selects “Remove items from the Trash after 30 days.”

Other ways that macOS helps automatically save space

With macOS Sierra or later, your Mac automatically takes these additional steps to save storage space:

• Detects duplicate downloads in Safari, keeping only the most recent version of the download
• Reminds you to delete used app installers
• Removes old fonts, languages, and dictionaries that aren't being used
• Clears caches, logs, and other unnecessary data when storage space is needed

How to free up storage space manually

Even without using the Optimized Storage features described in this article, you can take other steps to make more storage space available:

• Music, movies, and other media can use a lot of storage space. Learn how to delete music, movies, and TV shows from your device.
• Delete other files that you no longer need by moving them to the Trash, then emptying the Trash. The Downloads folder is good place to look for files that you might no longer need.
• Move files to an external storage device.
• Compress files.
• Delete unneeded email: In the Mail app, choose Mailbox > Erase Junk Mail. If you no longer need the email in your Trash mailbox, choose Mailbox > Erase Deleted Items.

Learn more

• The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps might show storage categories such as Not Mounted, VM, Recovery, Other Volumes, Other, Free, or Purgeable. Don't rely on these categories to understand how to free up storage space or how much storage space is available for your data.
• When you duplicate a file on an APFS-formatted volume, that file doesn't use additional storage space on the volume. Deleting a duplicate file frees up only the space required by any data you might have added to the duplicate. If you no longer need any copies of the file, you can recover all of the storage space by deleting both the duplicate and the original file.
• If you're using a pro app and Optimize Mac Storage, learn how to make sure that your projects are always on your Mac and able to access their files.

It appears that an increasing number of users would like to download video clips and movies from YouTube, Google Video, Veoh, Break, or DailyMotion, etc. and convert them to portable devices such as iPhone, iPad, etc., so that you can enjoy the videos anytime anywhere.

There are tons of free video downloaders for Mac and Windows PC. Some are for desktop while others are web apps. No matter which one you pick, each has its pros and cons. Here I would introduce the top 10 best free video downloader for Mac or PC to you. All of them are able to help you grab videos to your computer with the URLs.

Best Video Downloader for Mac

Cisdem Video Converter (All-in-one Solution)

• Download clips from more than 1000 popular sites
• Cope with 720p, 1080p, 4k and 8k videos
• Ensure video conversion between over 500 formats without losing quality
• Support batch processing multiple videos
• Built-in media editor allows to trim, combine, crop, add subtitles or effects, etc.
• Rip personal & commercial DVD to digital formats
• Supported OS: OS X 10.10 or later

Free Download

Reviews on Best Free Video Downloader for Mac/PC

1. iFunia YouTube Downloader (Mac)

iFunia YouTube Downloader is a free video downloader for Mac that helps you download online 1080p FHD, 4k UHD videos to Mac in batch. It's not just for video downloads from YouTube but from Dailymotion, Vimeo, Blip TV, Liveleak, Lynda, Break, Vube, Ustream, Ted, and other websites.

Copy the video URL and it will be auto pasted into the URL field. Or you can drag-n-drop all of the videos' thumbnails into the program, and start to download favorite videos for several minutes.

Pros:

1. Easy-to-use, intuitive
2. Support to download YouTube playlist

2. VDownloader (Windows, macOS)

VDownloader is an intuitive app that focuses on video downloading. It’s fully compatible with major video hosting sites, like Dailymotion, Break, Twitch, Vimeo, and more.

However, you are only allowed to bulk download unlimited videos 10 times and convert local videos 3 times. If you like this best free video downloader, you can fetch their commercial version at the price of $17.99/yearly or $59/lifetime.

Pros:

1. Integrated with a search feature to add video content to your follow tab
2. Convert video to custom format

Cons:

1. The speed of installation is pretty slow
2. Not work well on Mac computer and merely available on macOS Mojave or later

3. QDownloader.io (web tool)

QDownloader.io is a free online video downloader & converter with the ability to grab videos from a handful of video hosting sites, including YouTube, Facebook, Instagram, and Twitter.

It can directly convert video from websites to MP4 and MP3 on Mac or PC. There are browser extension versions on Safari, Firefox, Opera, and Chrome, assisting you in downloading.

Pros:

1. User-friendly
2. Quickly catch video by adding io before 'youtube.com'

Cons:

1. Save up to 720p video, even it's a 1080p or 4k video
2. Download up to 128kbps audio only

4. Keepv.id (web tool)

KeepVid is one of the best free video downloader for Mac/PC that allows you to download all types of videos online from YouTube, Facebook, Twitch.Tv, Vimeo, Dailymotion, and many more. The downloaded videos will be saved in MP4, MP3, M4A, or WebM format.

Without superfluous interfaces, novices can get started via copying & pasting the URL in the textbox.

Pros:

1. Preserve video metadata like name, song title, album, etc. in MP3
2. Keep subtitles in various languages

Cons:

1. Only 100 videos in the YouTube playlist can be detected at most
2. Can't download the playlist all at once and no batch download
3. The output definition is limited no exceed 1280p

5. aTube Catcher (Windows)

aTube Catcher is a desktop free video downloader for PC system which can perform lots of video tasks. It lets you download videos from social websites, and export them to PC or some portable devices, like iPad, iPod, PSP, MP4 player, and DVD.

It offers donations access for users to help them in the budget and maintain the best free video downloader app updated and running.

Pros:

1. A host of video formats are supported
2. Record screen, create DVDs/CDs

Best Mac Video Downloader

• No risk of ads, buffering, virus attack to your Mac.
• Support the download from all popular sites, like YouTube, Tumblr, DailyMotion, Blip, Veoh, AOL, Vimeo, etc.
• Batch download
• Preview the downloaded videos
• Snapshot and save your favorite screen picture.
• Convert and transfer videos to any kind of digital device including iPhone, iPod, iPad, Android, Blackberry and Windows Phone, PSP, etc.

Free Download

6. Freemake (Windows, macOS)

Freemake is a popular video downloader for free works on Mac and Windows. It supports downloading videos, playlists, channels in HD, MP4, MP3, AVI, 3GP, FLV, etc. Lots of sites are supported, like Youtube, Facebook, Vevo, Hulu, Dailymotion, Vimeo, Vkontakte.

The software has a self-explanatory UI. Any new users can easily know how to use it.

Cons (limits of the free version):

1. Download up to 50 videos
2. Each video can’t longer than 3 minutes
3. Unable to convert video to MP3
4. Add Freemake logo to your video
5. Fail to fetch 4k videos

7. ClipGrab (Windows, Mac)

ClipGrab is an acclaimed best free video downloader working on Windows. It supports downloading videos, playlists, channels in MP4, MP3, AVI, 3GP, FLV, etc. with quality retained.

Plus, it supports certain media sites, like Youtube, Facebook, Vevo, Hulu, Dailymotion, Vimeo, Vkontakte.

Note: It expects you to donate 10, 20, 30 euros for further development.

Pros:

1. Automatically catch URL from clipboard
2. Support a built-in search option

8. GetTube (Mac)

In old days, GetTube is a lightweight Mac OS X app that enables you to download videos and playback the media any time you like, directly from your computer. Get Tube works well with Safari and Firefox. Once you install it, you'll see a new button in the browser while you surf on YouTube. Click it and you'll be able to download the featured video in a matter of seconds.

With compatibility with macOS 10.12 or above, GetTube starts to charge, and you need to pay 5 euros to unlock the download function.

Pros:

1. Download videos in high quality
2. Search videos within the software

Cons:

1. Inconvenient UI
2. Only save video as MP4 and MP3 format

Free Applications For Mac

9. 4K Video Downloader (Windows, Mac)

4K Video Downloader is a reliable freeware that downloads videos, playlists, channels, and subtitles from YouTube, Vimeo, etc. This best free video downloader for Mac/PC lets you manually set the output formats as MP4, FLV, MKV, MP3, OGG, M4A.

You just copy the URLs of the target movies and, click the button “Paste Links”. But if you want to download more than 25 YouTube playlist videos or download the channel, you have to buy the serial number and get the perpetual permissions.

Pros:

1. Support to download 4k & 360-degree videos
2. Download the whole playlists

10. MacTubes (Mac)

Update: 1. The developer stopped releasing the app; 2. Not work anymore since Google changed YouTube API.

MacTubes is a handy free video downloader for Mac that you don’t have to visit the site itself. It allows you to create playlists based on what you've downloaded or what you've searched on. And it will list the downloaded and played files for you to create playlists.

Pros:

1. Work without having to open the YouTube website

Cons:

1. Offer no compatibility with other major video sites
2. Only save videos in one format

Bonus: Best Video Downloader Mac for Paid

Cisdem Video Converter is a one-stop and professional toolbox for Mac users to download & convert & edit videos, rip DVDs, etc. It should be the best video downloader for Mac to help you grab TV episodes, movies, music videos, news, sports, and other online video clips with the fastest speed.

Once you launch the free trial version, it would pop up a small box. Click “Evaluate”, and download the online video for free. If you buy its pro version, you would get the registration code to enjoy video conversion, video downloading, DVD ripping, and sharing functions within one.

Free Applications For Mac Os X

Quick Steps to Download Video from Website Mac Using Cisdem Video Converter:

Download Cisdem Video Converter to your Mac first, then run it and click the download section at the top.

Go to the video streaming sites that the software supports. Find the video you desire to download and copy its URL.

Return to the best video downloader for Mac, and paste the URL to the download bar.

Free Apps For Macbook Air

Click on the “down arrow” icon to start the video download. You can add multiple URLs to the download list.

Conclusion

After being familiar with a vast assortment of options for the best free video downloaders for Mac/ PC as well as the paid one, we can easily distinguish their benefits and drawbacks. With our overview, you should have a clearer picture of which best video downloader suits most of your needs.