Last updated: Apr. 10, 2017
Privacy matters, especially when you are about to resell or donate your old Mac or hard drive. You never know where it's going to end up. If the person who takes your device is a computer geek, chances are he can recover your private data — even if you've deleted them.
That's why you'll want to make sure none of your personal information is retrievable. Of course, the most reliable method is to destroy the device, but its value would become zero.
The best way to do this safely and economically is by using a Mac shredder or eraser application. We've got three great options for your choices.
Why do you need a Mac shredder software?
Let's start with the basics. When you drag a file or folder to the Trash and then delete it there, or you delete it from an external hard disk drive, the file isn't removed permanently at least for quite some time. What happens is your file or folder is simply erased from the file directory of your Mac or external HDD. By using a third-party Mac data recovery program, you can usually recover it provided that it is not overwritten — i.e. you haven't added new files to your Mac or the external drive. Learn more from this article.
To make that file unrecoverable, you can either keep saving new large items to that drive manually or use a third-party app to do so automatically. The former option can be quite time-consuming and it's often not secure because you can't tell whether the space contained in that file or folder is occupied or not, particularly if your hard drive has a large volume. That's why a Mac shredder utility comes into play.
3 great Mac apps to securely erase files or wipe entire disk drive
Depending on whether you want to permanently delete files/folders, or securely erase a hard disk drive, we've got three handy applications that work amazingly for macOS.
Stellar Wipe Mac is a utility designed for permanently wiping sensitive data from a hard drive. With two wipe modes: "Drive Wipe" and "File Wipe", the software allows you to choose a secure wiping mechanism, e.g. only erase several files or the entire hard drive. All wiped items and drives will be permanently deleted and beyond data recovery.
- It offers two powerful wipe modes, which should meet your custom needs.
- You can select wiping algorithms, e.g. Zeros, DoD 5220.22-M, Peter Gutmann 35-pass, etc.
- It allows you to schedule wiping tasks so you can wipe specific file types at the specified time.
- It can be quite time-consuming if you select a higher standard wiping algorithm.
- Software UI/UX could be improved.
Primarily designed and developed to deep clean your Mac and make it run faster, CleanMyMac 3 also comes with a handy utility — Shredder. You can use it to remove data quickly from your Mac hard drive without leaving any trace. The app is perfect for those of you who want to keep your Mac clean and fast, while also protect your privacy by permanently removing some files that are sensitive.
- The Shredder utility erases files quickly.
- It also comes with a set of other excellent tools to maintain your Mac performance, great value.
- Sleek software interface makes it incredibly easy to use.
- It only works to erase files, NOT able to wipe an entire drive.
- You can't select a particular wiping algorithm.
MacBooster File Eraser
Developed by the IObit team, MacBooster 4 is another great Mac system suite that includes a collection of tools to keep your Mac in good shape, one of which is — File Eraser, which enables you to quickly delete items you want to get rid of for good. The software itself presents a world-class graphics and user interfaces, making it enjoyable to navigate. Bottom line: if you are looking for an all-in-one system utility to protect and manage your Mac machine, this is the last option to go. Learn more about MacBooster from this review.
- Quick and easy to erase files.
- It also contains a number of other useful Mac utilities.
- It doesn't provide different security options regarding wiping algorithms.
Influenced by the startup culture in the Silicon Valley, Jessica loves building things from zero to one and is keen on following news related to the Big Five tech giants and many SaaS startups.