[Complete Guide] Remove Flicker on Mac for Free! How to Run AviUtl with Whisky in Just 35 Minutes (Must-See for FCPX Users)

“I use FCPX, but I just want to remove flicker for free… Isn’t there some secret trick for Mac users?”

Actually—there is.

While most flicker removal tools cost money or are locked behind Windows-only software, there’s a clever workaround that lets you remove flicker for free on Mac. No need for paid plugins, no need to switch editing software. Just a simple setup—and you’re good to go.

In this guide, I’ll show you exactly how to do it, step by step.
Time required: about 35 minutes. Let’s solve that flicker problem today.

✅ What You’ll Do in This Guide

• Install AviUtl on Mac (using Whisky)
• Install the flicker removal plugin
• Fix character corruption and image size errors during export

Table of Contents

1. Download AviUtl & Prepare Folder
2. Required Plugin ①: Download & Install x264guiEx
3. Required Plugin ②: Install Flicker Removal Plugin
4. Common Mistake: Plugin Placement Tips
5. Install Whisky & Launch AviUtl
6. Basic Usage & Audio Sync Tips (Link to be added later)
7. Fix 3-Digit Image Size Input Error
8. Flicker Removal Usage Link
9. Fix Garbled Text During Encoding
10. Summary & Checklist
11. Notes & Final Words

Let’s go!

Okay, let’s get started with the explanation, keeping in mind that this blog extensively features Japanese websites.

We recommend using Google Translate as you read through the content.

If you encounter any difficulty with the Japanese text within images, you can capture a screenshot and paste it into the following Gemini website for an English translation. The shortcut for capturing a screenshot is Ctrl+Shift+Command+4, which allows for direct copying and pasting.

Now, let’s dive into the details!

1. Download AviUtl & Prepare Folder

Go to the page below and follow the instructions to download AviUtl:

👉 https://jp.cyberlink.com/blog/videoeditor/611/aviutl-install

After downloading and extracting the files, place all files (including aviutl.exe) into one folder. We’ll refer to this as the “AviUtl folder.”

2. Required Plugin ①: x264guiEx

To encode videos with AviUtl, the x264guiEx plugin is essential.

Although you can sometimes export with “Simple MP4 Output,” it didn’t work well in our case, so we’ll go with the tried-and-true x264guiEx.

Visit this site:
👉 https://rigaya34589.blog.fc2.com/?q=x264guiex&w_res=on

Choose the latest version—higher numbers = newer versions.
e.g., 3.35 v2 is newer than 2.22 v1.

After downloading and extracting it, place the necessary files into your AviUtl folder. If a “plugins” folder already exists, click “Merge” in Finder to avoid overwriting.

3. Required Plugin ②: Flicker Removal (by Uepon)

We’ll use a plugin made by Uepon, called “60fps Flicker Reduction.”

Download from (reference site):
👉 https://storyinvention.com/aviutl-flicker/

Look for “AviUtl Plugin Filter by Uepon” → “■60fps Flicker Reduction”, and download the file.

Unzip it and copy flicker60.auf into the plugin folder inside your AviUtl folder. You can copy all files, but it’s cleaner to copy only the necessary one.

4. Common Mistake: Plugin Placement

When installing plugins like Exedit92.zip, don’t place the folder itself into the AviUtl folder.

Instead, extract the contents of the folder and copy them directly into the AviUtl folder.

Putting the folder itself will prevent AviUtl from recognizing the plugin.

5. Install Whisky & Launch AviUtl

Since AviUtl is .exe (Windows-only), you’ll need Whisky, a wrapper that runs Windows apps on Mac.

1. Go to: 👉 https://getwhisky.app/ja/
2. Click “Download Latest Version” and install.
3. Open Whisky and click “+ Create Bottle.”
4. Name it whatever you like (e.g., “Use AviUtl”).
5. Select the bottle, click “Run…” and choose AviUtl.exe from your folder.

It might take a bit at first launch, but if the AviUtl window appears, success!

From now on, launch AviUtl from this bottle to run it on Mac.

6. Basic Operations & Audio Sync Fix (Links Coming Soon)

For basic usage, check out these tutorials:

• Basic Guide: https://youtu.be/G3DA5kd9_sY
• Audio Sync Fix: https://youtu.be/6csmd_AQ7us

7. Fix 3-Digit Image Size Input Limit

On Mac via Whisky, you may find that you can’t input more than 3 digits for image size. Here’s how to fix it:

• Go to Settings → System Settings in AviUtl
• Set max image size to 1920 x 1080

If still stuck:

• Temporarily create a project with 999 x 999
• Then go into settings and change it to 1920 x 1080

If this still doesn’t work, it may be a Wine compatibility issue, but usually the steps above resolve it.

8. Flicker Removal How-To

After installing the plugin, go to the filter settings in AviUtl.

Check this guide:
👉 https://storyinvention.com/aviutl-flicker/

Click “60fps Flicker Reduction” and adjust the bar to around the middle.

9. Fix Encoding Garbled Text Issues

Sometimes, using the x264 extended output plugin will make the output window appear garbled. Here’s what to do:

1. Go to Plugin Output → x264 Extended Output
2. Click Video Compression
3. Even if the window is garbled, click the gear icon (Preset) at top-right
4. Select “YouTube”
5. Choose the third option from the top in the dropdown
6. Set Quality to around 23
   • Lower numbers = higher quality (but larger file size)

If any popup windows are hidden, use Finder or Whisky’s window list to locate them.

Once settings are done, click “Save” and start exporting. Even if the UI looks broken, the output will be fine as long as settings are correct.

10. Summary & Checklist

Here’s a quick checklist to run AviUtl on Mac and remove flicker—for free:

• ✅ Download & extract AviUtl → Prepare folder
• ✅ Download x264guiEx (latest version) → Extract & merge into AviUtl folder
• ✅ Download & extract flicker plugin → Copy flicker60.auf to plugin folder
• ✅ Don’t place plugin folders directly—only extract contents
• ✅ Install Whisky → Create bottle → Launch AviUtl.exe
• ✅ (Optional) Check tutorials & configure audio sync
• ✅ Fix image size limit by setting 1920×1080 or using 999×999 as workaround
• ✅ Use filter plugin for flicker removal
• ✅ Use YouTube preset in encoder → Choose 3rd item → Set Quality to 23

Notes

• We’ll add more video links for tutorials and settings soon.
• Use the latest plugin and Whisky versions when possible.
• If you run into errors, take a screenshot and search or ask in forums.
• The 30-minute estimate depends on your download speed and familiarity.

Final Thoughts

Running AviUtl on a Mac and removing flicker might sound complicated, but with Whisky and this step-by-step guide, it’s totally doable—and free.

Give it a try and expand your video editing capabilities!

Good luck!