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A free, local Windows GUI for PySceneDetect. No servers. No uploads. Your 1.5 GB files stay on your machine.
Scene Splitter is a lightweight Windows GUI that wraps PySceneDetect — the open-source scene detection engine. It runs entirely on your local machine. No cloud. No uploads. No file size limits.
Download Python 3.10 or newer from python.org.
☑ Check "Add Python to PATH" during installation
Open Command Prompt and run:
pip install scenedetectFFmpeg handles video encoding. Download from ffmpeg.org and add to your system PATH.
Or use gyan.dev for pre-built Windows binaries.
Download the Scene Splitter GUI files:
scene_splitter_gui.py
The main GUI application
Run_Scene_Splitter.bat
Double-click launcher — checks Python and runs the GUI
Place both files in the same folder. Double-click the .bat file to launch.
Select Input Video
Click "Browse..." and pick your video file. MKV, MP4, AVI, MOV all supported.
Select Output Folder
Pick where scene files go. Auto-suggests a "scenes" subfolder next to your video.
Adjust Detection Settings
Threshold slider controls sensitivity. Higher = fewer scenes. Default 27 works for most content.
Check Output Options
Split video, export CSV, save thumbnails, or create an EDL for Premiere/Final Cut.
For MKV Files — Check "Re-encode with H.264/AAC"
MKV files encode poorly with default settings. This checkbox forces libx264 video and AAC audio for clean output.
Click "Detect Scenes"
Watch the real-time progress log. Scenes are split and saved to your output folder.
MKV container files often encode poorly with PySceneDetect's default settings. The GUI includes a"Re-encode with H.264/AAC (recommended for MKV)" checkbox that applies these exact settings:
scenedetect -i episode.mkv split-video --preset fast --args "-c:v libx264 -c:a aac"This forces H.264 video encoding and AAC audio — compatible with virtually every player and editor. Without this flag, MKV files may produce broken or unplayable output segments.
Q: "PySceneDetect not found"
A: Run: pip install scenedetect
Q: "FFmpeg not found" when splitting
A: Install FFmpeg and add to PATH, or disable "Split Video into Scenes"
Q: Too many / too few scenes detected
A: Adjust the Threshold slider. Higher = fewer scenes.
Q: MKV output files are broken or have no audio
A: Check "Re-encode with H.264/AAC" — MKV needs explicit codecs
Q: Split is very slow
A: Enable "Copy Mode" for fast stream copy (no re-encode). Only works with compatible codecs.
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