Mirillis Action! is a high-performance screen and gameplay recording software designed for Windows. It allows users to capture desktop activity, web videos, and games in superb HD, 4K, and HDR quality with minimal performance impact. The application also includes live streaming capabilities and advanced features like hardware acceleration and chroma keying.
In This Post
Best Settings & Configuration
Optimal Export Settings for YouTube
- Navigate to the Export tab in the main Action! window.
- Select the ‘YouTube’ export profile from the list.
- For 4K content, ensure the resolution is set to 3840×2160 and the framerate matches your source video (e.g., 60p).
- Use the H.264/AVC or H.265/HEVC codec for best quality and file size balance.
- Click ‘Start’ to begin the export and automatic upload process.
Why this matters: Using the dedicated YouTube profile ensures your video is encoded with the correct bitrate and resolution, optimizing upload speed and playback quality on the platform.
Enabling Hardware Acceleration (NVENC/Quick Sync)
- Go to the ‘Video Recording’ settings tab.
- Under ‘Video Codec’, select either H.264/AVC or H.265/HEVC.
- Ensure the ‘Hardware Acceleration’ option is set to your compatible GPU (NVIDIA NVENC, Intel Quick Sync, or AMD APP).
- Confirm the setting is active before starting a recording session.
Why this matters: Hardware acceleration offloads the video encoding process from your CPU to your dedicated graphics card, drastically reducing system load and preventing frame drops during high-framerate gameplay recording.
Setting Up Real-Time Video Zoom
- Access the main ‘Settings’ menu and navigate to the ‘Video’ tab.
- Locate the ‘max. Zoom list’ setting and select your desired zoom amount.
- The default hotkey to toggle the zoom on/off is CTRL+PGUP (this can be customized in the ‘Hotkeys’ tab).
- When activated, a yellow frame will appear around your screen, indicating the zoom is active and following your mouse cursor.
Why this matters: This feature is essential for creating high-quality tutorials, allowing you to draw viewer attention to specific details on your screen in real-time without needing post-production editing.
System Requirements
Minimum
- Os: Windows Vista, 7, 8, 8.1, 10, 11
- Processor: Intel® Core™ 2 Duo 2.0GHz or equivalent processor
- Ram: 1 GB
- Disk Space: 92 MB available space
- Graphics: Direct3D 9.0 compatible with Pixel Shader 2.0 support
Recommended
- Os: Windows 7, 8, 8.1, 10, 11
- Processor: Intel® Core™ 2 Duo 2.0GHz or equivalent processor
- Ram: 2 GB
- Disk Space: 92 MB available space
Technical Specifications
| Software Name | Mirillis Action! |
|---|---|
| Version | 4.47.0 |
| License | Trial/Paid |
| File Size | 110 MB |
| OS Support | Windows Vista, 7, 8, 8.1, 10, 11 |
| Language | Multi-language |
| Developer | Mirillis |
| Homepage | https://mirillis.com/ |
| Last Updated | 24/12/2025 |
Key Features
- Hardware Accelerated Recording: Utilizes NVIDIA NVENC, AMD APP, and Intel Quick Sync Video to record directly to MP4 (H.264/AVC or H.265/HEVC) with minimal CPU load, ensuring smooth HD/4K video capture.
- Live Streaming and Broadcasting: Stream gameplay and desktop activity to popular services like YouTube, Twitch, and Facebook, with support for professional multi-scene broadcasts and capture cards.
- Greenscreen Mode and Webcam Integration: Add webcam footage to recordings and use Chroma Keying to remove the background without needing a special camera.
- Time-Shift and Continuous Recording: The Time-Shift function allows you to instantly save missed gameplay moments, while Active Screen mode records continuously across desktop and fullscreen games.
What’s New in Version 4.47.0
- Added support for Nvidia R590 (591.44 and newer) drivers.
- Added split NVENC encoding support for faster video encoding on selected Nvidia RTX 4000/5000 GPUs.
- Final fixes and improvements for Windows 11 24H2 update.
- Added real time video zoom that follows the mouse cursor position.
- Important fixes for VRR capture mode (Variable Refresh Rate).
For complete changelog, visit the official release notes.
Pros & Cons
| Pros | Cons |
|---|---|
| Outstanding performance with low CPU usage due to hardware acceleration (NVENC, Quick Sync, AMD APP). | The full version requires a purchase after the 30-day trial period. |
| Supports high-resolution and high-framerate recording, including 4K, 8K, and HDR. | Trial version applies a watermark to all recorded videos. |
| Features a user-friendly interface and built-in recording manager. | |
| Includes advanced features like Greenscreen Mode (Chroma Keying) and Time-Shift recording. |
Installation Guide
Troubleshooting & Common Issues
Frequently Asked Questions
Is Mirillis Action! free to use?
Mirillis Action! is available as a 30-day free trial. After the trial period, a license purchase is required to continue using the software and to remove the watermark from recordings.
What video formats does the software support?
The software records videos in AVI 2.0 file format (using the proprietary Mirillis FICV codec) or in MP4 file format (using H.264/AVC or H.265/HEVC codecs). [cite: 7 (first search)]
Can I use Mirillis Action! to record my desktop and games continuously?
Yes, the Active Screen recording mode allows for continuous recording, capturing all activity even when switching between the Windows desktop and fullscreen gameplay. [cite: 8 (first search)]
Alternatives & Comparison
For most users, Mirillis Action! is the recommended choice. Compare alternatives below if you need specific features.
| Feature | ✓ Recommended Mirillis Action! | OBS Studio | Bandicam |
|---|---|---|---|
| Price | 💰 Trial/Paid | ✅ Free | 💰 Trial/Paid |
| Platform | Windows | Windows, macOS, Linux | Windows |
| Hardware Acceleration | NVENC, Quick Sync, AMD APP | NVENC, Quick Sync, AMF | NVENC, Quick Sync, AMD VCE/VCN |
| Max Resolution/FPS | 4K/8K, up to 240 FPS | Limited by hardware/settings | 4K UHD, up to 480 FPS |
| Chroma Key/Greenscreen | Yes (Built-in) | Yes (Filter) | Yes (Built-in) |
| Watermark on Free/Trial | ✅ Yes | ❌ No | ✅ Yes |
| Our Pick | ✓ Recommended | Best for professional streaming and multi-platform use. | Best for high-framerate gameplay recording. |
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