Folder Preview provides a Quick Look extension for previewing content in the Finder.

Before you start, you need to enable the Quick Look extension in the system settings.

Transmit 5 is an excellent FTP (file transfer protocol), SFTP, S3 (Amazon.com file hosting) and iDisk/WebDAV client that allows you to upload, download, and delete files over the internet. With the most Mac-like interface available, Transmit makes FTP as simple, fun, and easy as it can possibly be.

Geekbench 6 measures your processor's single-core and multi-core power, for everything from checking your email to taking a picture to playing music, or all of it at once. Geekbench 6's CPU benchmark measures performance in new application areas including Augmented Reality and Machine Learning, so you'll know how close your system is to the cutting-edge.

Parallels Desktop is one of the oldest and most popular applications for virtualization on macOS. There are quite a few options out there for Mac users who want to run other operating systems on their Apple devices, but none are quite as intuitive and novice-friendly as Parallels.

This app allows you to Run Windows, various flavors of Linux, ChromeOS, Android, and many other operating systems in virtual machines, and it makes setting up and configuring these VMs incredibly straightforward. Much of the process is automated, and the virtualized OSes integrate well with macOS.

4k Wallpaper is a beautiful and easy-to-use app. It selects a large number of beautiful and 4k & HD wallpapers (600+) and adapts to the full screen.

Your very own secure file sharing tool! Dropshare is a so-called menulet that enables you to easily drag&drop files, folders and anything else to your own server, Amazon S3, Rackspace Cloud Files or Google Drive. Once uploaded, the app copies the link to the file to your Mac's clipboard and you're ready to share with anyone you like!

Download and save your favorite streaming videos from youtube onto your computer with this software Download and save streaming videos from YouTube onto your computer so that you can play and watch the videos in your media player. The program allows you to select the quality at which you want to download the videos. The quality levels include lower quality flash videos, mp4 wide screen quality to high definition quality.

4K Video Downloader allows to download video, audio and subtitles from YouTube in high-quality and as fast as your computer and connection will allow. If you want that video on your iPad, iPhone or other device we've got you covered. Downloading is simple and straightforward: just copy the video link from your browser and click 'Paste Url'. Done!

4K YouTube to MP3 was specifically created to extract audio from YouTube, Vimeo or Facebook and save it in MP3, M4A, OGG. No annoying and complicated settings to deal with, just a clean, friendly and functional interface. Downloading is simple and straightforward: just copy the link from your browser and click 'Paste Url'. Done!

Lungo prevents your Mac from falling asleep and your screen from dimming.

Get the easiest but professional way to record your screen and take snapshots here. Aiseesoft Screen Recorder is the best screen recording software to capture any activity on Mac computer. It can work as a good video game recorder, Skype call capture, YouTube video recording app, and more to capture any area of your screen. While screen recording, you can edit video/snapshot and draw new labels to output file.

Fidelia is the audiophile music player for Mac. It plays your music the way it was recorded — with no compression, no quality loss, and no compromise. Version 2.0: Completely rebuilt. Mastering-grade DSP built in.

Fidelia 2.0 ships with three DSP processors that audio engineers pay hundreds of dollars for as standalone plugins — built into the player at no extra cost.

Charles is a web proxy (HTTP Proxy / HTTP Monitor) that runs on your own computer. Your web browser (or any other Internet application) is then configured to access the Internet through Charles, and Charles is then able to record and display for you all of the data that is sent and received.

Windows users will be familiar with a feature that allows previewing window contents by hovering over their taskbar icons. If you want this in macOS as well, the only way you’re going to get it is via a third-party app.

Dock previews are DockDoor’s main functionality, with the added bonus of an alternative alt-tab feature that includes window previews. It’s an open-source app, very easy to set up and use, though still not quite perfect.

CleanMyMac X is an user friendly Mac app that comes with a stylish design and helps you detect the junk files, but also user and system cache / log files, broken preferences or login items, apps that have universal binaries (you can remove the executable that is not suitable for your architecture), language files (you can keep only the one you actually employ).