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Benefits of deleting temporary files

On a Mac, everything is designed to work just the way you expect it to — from operating it with simple, intuitive gestures to asking Siri to find a file to having your apps automatically update themselves. Whatever you set out to do on a Mac, there’s much less to learn and that much more to accomplish. Air Transfer: Wi-Fi Sync Manager lets you upload and download files (photos, videos etc) to/from your iPhone, iPad, Mac or PC using your local wifi network. Multiple connections supported, connect and exchange files with all your devices at the same time - Easy-to-use web interface - No USB cable needed.

Storing temporary and cache files, alongside everything else stored in your Mac, takes up space that could be put to better use. Depending on how many apps you use on a regular basis, you could be storing dozens - even hundreds - of cache and temporary files without realizing it, all incrementally slowing your Mac down.

Cache and temporary files can include everything from web browser cache and history, including cookies and passwords, to messaging cache folders, partially completed downloads, app temp files and folders, and so much more that is taking up space on your Mac.

Types of temporary files:

• browser cookies
• outdated system logs
• application cache
• intermediate document versions

Why do browsers collect cache?

Most web browsers will only try to hold onto a limited amount of cache data and cookies. This helps your browser run faster when loading a web page that you’ve visited before. But it won’t hold onto everything. Most will try and self-clean this data after a period of time.

And apps, also hold onto as much as they need, and will sooner or later, try and clear out that data. Automated cache clearing doesn't always work and sometimes when an app or web browser isn’t working properly - or if you've fallen victim to malware or adware - a direct intervention is needed to clear out temporary files and cache data to get an app, browser or other application to work as it should.

The old caches may cause software glitches and compatibility issues.

Delete temporary files with CleanMyMac

Clearing out unnecessary temporary and cache files will increase the amount of hard drive space available, and it should improve the overall performance and speed of your Mac. You can do this one of two ways: manually — which we cover below — or using a time-saving tool, such as CleanMyMac X.

Get a free version of CleanMyMac — a link to free download

According to the developer, this app removes up to 74 GB of junk on average Mac. Most of it is system junk, in other words, temporary files and caches. If you are overloaded with temporary files and too much cache data, it will highlight this and you can safely delete everything, saving you time and space. Another way to clear out cache files and data is to go through your files manually. Here is how you do that.

How to delete temporary files manually

Before you begin, always back up your Mac. Whether you use Time Machine, iCloud, or a third-party hard drive or cloud-based storage system, make sure you’ve got everything backed up.

There are 4 main types of caches you'll encounter on your Mac:

Here is how to clear temporary files from a Mac:

1. Quit or close any open and active apps. To make sure this is done, Force Quit anything that hasn't closed properly. Anything that needs to be closed that way might benefit from a cache clear out.
2. Go to the Finder in macOS
3. If you are using Sierra or a more recent OS, hold down the SHIFT key. Or for those using an older macOS, press down the OPTION or ALT key, and pull down the Go menu in Finder.
4. Choose Library from the options presented in the Go menu
5. Once you’ve got access to Library, go to the Caches folder


6. Now this will show you the full range of cache and temporary files that are being stored on your Mac. Be certain which ones you want/need to delete before sending them to the Trash.
7. To send cache folders to the Trash, either right-click and select Move to Trash, or drag and drop them into the Trash.
8. Empty the Trash — the same way you would when removing any other files - to clear them out of your Mac.

Typical cache file looks like this: “com.apple.iTunes”.

Deleting browser cache

Unless you are either deleting everything, with some apps you can make these same changes in settings. In every web browser, you can clear the cache, cookies, saved passwords and browser history.

How to empty the cache in Safari:

Other web-based apps also have settings that give you control over the cache and cookies, so to avoid deleting everything, you might want to go to the specific app containing the data and clearing it out that way.

Another way to safely delete temporary files, cookies and cache is to Restart your Mac. If you keep it running and in sleep mode for days or weeks at a time, there are a lot of automatic maintenance systems that can’t operate until you restart or shut down your Mac then start it up again. Restarting your Mac is doing it a big favor and should help it run smoother.

Locate hidden temporary folders with CleanMyMac

Did you know, there is a way to peek under the hood of your Mac? The tool we've just told you about, CleanMyMac X has an instrument for viewing the inner parts of your macOS. It's called Space Lens. It looks like this:

These 'bubbles' represent folders of different size. Here you can explore the Library and other distant parts of your computer.
Get the app here for free (a link to the developer's site)
Once you install the app, click the Space Lens tab in the sidebar.
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The outdated system files may hold back the performance of any Mac, even the most powerful models. And that's why Mac cleaning software exists. Either you choose a manual or automatic cleanup, your Mac will thank you for it. Hope you've learned something helpful today. Come back for more Apple/Mac tips.

Files you download from the Internet are often compressed or zipped so that they take up less space and arrive much faster than files that haven’t been compressed. You can easily identify compressed files by their extensions, such as .zip (a common standard used in OS X and Windows) and .sit. Before you can use these files, you must learn how to unzip files on mac computers for proper access – luckily the process isn’t that complicated!

How to unzip files on mac computers

Unzipping a file on a mac computer is user-friendly and intuitive. To unzip files on a mac, simply follow the steps below:

1. Double click the zipped file.
2. The file will automatically be decompressed by Archive Utility into the same folder the compressed file is in.
3. Access the extracted files by clicking the appropriate icons.

Alternatively, if the method above does not work, you can right-click on the .zip package, and select Open With > Archive Utility (default).

Apple and third party software

Apple used to include a program called StuffIt Expander to decompress zipped files, but doesn’t now that OS X lets you unzip files (but not .sit files). However, StuffIt from SmithMicro Software still comes in handy for opening other types of compressed files, notably the .sit or .sitx compressed types. Go to www.stuffit-expander.com or www.stuffit.com/mac/index.html to download a free version of the software or to splurge for the Deluxe version. In addition to compressing files, StuffIt Deluxe lets you encrypt and back up files.

Meanwhile, you can archive or create your own .zip files through OS X, which is useful if you’re e-mailing a number of meaty files to a friend. Right-click (or Ctrl-click) files you want to compress inside Finder and choose Compress Filename. The newly compressed files carry the .zip extension. The archive is created in the same location as the original file and is named originalfilename.zip. You can also choose File→Compress. If you compress a lot of files at once, the archive takes the name Archive.zip.

By default, compressed files are opened with the Archive Utility. It appears in the Dock (in Leopard) while the files are being unsqueezed, unless you choose to open them with Stuffit Expander or some other program.

How to zip files on a mac

On the flip side, you can also archive or create your own .zip files through OS X, which is useful if you’re e-mailing a number of meaty files to a client or friend. Follow the step-by-step instructions below to easily zip files on a mac:

1. Right-click or Ctrl-click the multiple files you want to compress (whether on the desktop or inside the Finder).
2. Select Compress Filename from the pop-up menu.
3. The files are now compressed in a .zip extension and the archive is created in the same location as the original file name, except with the .zip appended to its name.

Zip File For Macbook Air

On some Apple computers, you can also compress a file by simply choosing File→Compress. If you compress a lot of files at once, the archive takes the name Archive.zip.