Shotcut
1. Shotcut
Shotcut is a free, open-source editor for Windows, macOS, and Linux. It does not rely on split-screen templates. Instead, you place the clips on separate video tracks and use the "Size, Position & Rotate" filter to resize and arrange each layer. This gives you more freedom to create side-by-side, top-and-bottom, picture-in-picture, or multi-panel compositions.
Best for: Users who want a free cross-platform editor and do not mind learning a multi-track timeline. It is flexible, but setting the size and position of every clip manually takes longer than using a ready-made layout.
VSDC Free Video Editor
2. VSDC Free Video Editor
VSDC Free Video Editor is a Windows non-linear editor that can place several clips in the same scene. Add the videos on layers underneath one another on the timeline so they play simultaneously, then resize and move them in the preview window. You can also stagger their starting times, add borders and text, or combine the layout with other effects.
Best for: Windows users who want a free, watermark-free editor with more manual layout and effect controls. Its interface includes many panels and settings, so first-time editors may need some time to become familiar with it.
Adobe Premiere Pro
3. Adobe Premiere Pro
Adobe Premiere Pro is suitable for detailed and professional split-screen work. Stack the clips on separate timeline tracks, apply the Crop effect, and adjust each clip's Position and Scale controls until the composition fits the frame. Keyframes, masks, graphics, color tools, and audio mixing can then be used to build animated or highly polished multi-screen sequences.
Best for: Experienced editors, commercial projects, and layouts that require precise control or animation. It offers much more than a basic collage maker, but the subscription and larger toolset may be unnecessary for a simple two-video comparison.
Kapwing
4. Kapwing
Kapwing runs in a web browser, so you can build a split-screen video without installing a desktop editor. Upload the clips, place them on separate timeline layers, and resize or drag them into position on the canvas. The online workspace also supports trimming, captions, text, graphics, and project sharing.
Best for: Occasional editing, Chromebook users, and teams that want to work online. Upload and export speed depends on the internet connection, and free-account export restrictions can change, so check the current plan details before starting a large project.