✨ Clop: Real-Time File Compression & Clipboard Optimizer for macOS

Clop is a free, open-source macOS tool that auto-optimizes images, videos, and PDFs on your clipboard. Copy large, paste small, send fast with zero effort.

A productivity powerhouse that makes file handling effortless

In our daily work, we often run into situations where images, videos, or PDF files we've prepared are simply too large to send via email or share through instant messaging tools. Or perhaps we want to quickly adjust the format or dimensions of a media file, but are forced to launch a heavyweight professional application. Don't worry—Clop, a fantastic tool for macOS, can solve these problems with ease.

1. What is Clop?

Clop is an open-source image, video, PDF, and clipboard optimization tool designed exclusively for macOS. Its core philosophy is elegantly simple: "Copy large, paste small, send fast." Whenever Clop is running, it intelligently monitors your clipboard and automatically optimizes any images, videos, or other multimedia files you copy—reducing file size while preserving as much quality as possible, thereby boosting your productivity.

With its lightweight, efficient, and automated nature, Clop has become the go-to choice for many macOS users, especially those who frequently work with image and video content.

Your browser does not support HTML5 video playback.

2. ✨ Key Features

Clop offers a rich and practical set of features. Let's take a closer look:

🔥 Automatic Clipboard Optimization

This is Clop's core feature. As soon as you copy an image, video, or PDF to the clipboard, Clop automatically optimizes and compresses it in the background, after which you can paste the optimized version directly. The entire process requires zero manual intervention and feels completely seamless.

🎥 Video Processing & Screen Recording Optimization

Clop can dramatically reduce the size of screen recordings and video files. When you stop a screen recording, Clop immediately optimizes the video. Additionally, it offers a suite of video manipulation options:

• Crop: Crop videos to specific dimensions or aspect ratios.
• Convert: For example, convert videos to GIF.
• Speed Adjustment: Speed up or slow down video playback.
• Audio Handling: Mute or remove audio from videos.
• Codec Conversion: Convert videos to more compatible formats (such as MP4).

Worth highlighting: on Macs powered by Apple Silicon, Clop can leverage the chip's dedicated Media Engine for efficient encoding, reducing CPU usage and saving power.

📂 Drag-and-Drop Operations & Presets

You can simply drag files onto Clop's drop zone for manual optimization. Even more powerful, you can create custom drag-and-drop preset zones to perform specific actions—for example, "convert to WebP and shrink to 50%", "add a watermark", or "upload via Dropshare and copy Markdown link". This provides tremendous flexibility for automated workflows.

⚙️ Format Conversion & Resolution Adjustment

Clop supports automatic conversion of images to formats like WebP and can easily adjust the resolution of images and videos. You can incrementally shrink files (from 90% down to 10% of original resolution) via keyboard shortcuts or a floating button, or press number keys (1–9) to shrink to specific dimensions.

🔒 Privacy & Security

All file processing is performed entirely on your local device. Clop does not use any cloud services and never sends your file data to the internet, ensuring your privacy and data security.

🆚 Free vs. Pro

Table: Comparison of main features between Clop Free and Pro

The free version is sufficient for occasional use by typical users, but if you need to process files frequently and in bulk, the Pro version (one-time purchase of $15) will be more suitable.

3. 🚀 Usage Tips & Scenarios

Master the following tips to get the most out of Clop:

Practical Tips

• Keyboard Shortcuts:

  • Control+Shift+C: Manually optimize current clipboard content.
  • Control+Shift+A: Perform more aggressive optimization.
• Preserve Original Files: Clop replaces the original file by default, but automatically creates a backup. You can click the Clop icon in the menu bar and select "Open Backup Folder" to recover the original file.

• Modifier Keys During Drag-and-Drop:

  • Hold the Command key while dragging a file to apply a more aggressive optimization strategy.
  • Press the Option key once to hide the drop zone UI.
• Integration with Other Apps: Clop integrates with file-staging apps like Yoink and Dockside, as well as the upload tool Dropshare, to extend its functionality further.

Ideal Use Cases

• Content Creation & Marketing: Quickly optimize large batches of images and videos for publishing on social media or blogs.
• Online Education & Training: Teachers and trainers who need to share large volumes of teaching resources can use Clop to compress files quickly for easy distribution.
• Daily Office & Communication: Effortlessly compress email attachments or files shared via instant messaging to bypass size limits.
• Personal Website Management: Webmasters can batch-optimize website images to improve page load speed.

4. ⚔️ Comparison with Similar Tools

macOS isn't short of other optimization tools, but Clop has unique advantages:

Clop's automation and broad format support (especially video) are its biggest highlights, eliminating the tedious steps of manually saving, dragging, or uploading. Its deep integration with the system clipboard and Shortcuts also delivers a seamless experience.

5. 📥 Download, Installation & Setup

• Get Clop:

  • The safest and most reliable method is to download the latest DMG installer from its official GitHub releases page: https://github.com/FuzzyIdeas/Clop
  • You can also visit its official website for more details and downloads: https://lowtechguys.com/clop/

• Installation Steps:

  • Once downloaded, open the .dmg image file.
  • Drag the Clop application icon into the Applications folder to complete installation.
  • Find and open Clop from Launchpad or the Applications folder.

• First Run & Permissions:

  • On first launch, macOS may warn you that Clop is from an "unidentified developer." If this happens, right-click the app, choose "Open," then click "Open" again in the dialog box.
  • Clop requires Accessibility permission to monitor the clipboard. Follow the prompts to navigate to System Settings → Privacy & Security → Accessibility and grant Clop permission. This is essential for it to function properly.

• Activating Pro (Optional):

  • If you've purchased the Pro version, there is usually an in-app activation entry where you can enter your purchase details.

Please note: While so-called "cracked versions" or "key generators" may exist online, we strongly recommend obtaining Clop through official channels. This not only supports the developer in continuously updating and maintaining this excellent software, but also ensures your Mac's security and avoids potential risks.

6. Conclusion

Clop is a thoughtfully designed, powerful, and smooth macOS productivity tool. It cleverly combines automation with robust media file optimization capabilities, genuinely addressing the pain points users encounter when sharing and transferring files.

Whether it's its invisible clipboard optimization, professional-grade video processing, or highly customizable drag-and-drop operations, every aspect reflects the developer's meticulous attention to user experience. If you're a macOS user who frequently handles images, videos, or PDFs and pursues an efficient workflow, Clop is absolutely worth trying.

Note: This is the English translation of the original Chinese version.