ReactionMaker is a free browser-based reaction video maker and split screen video maker. Create side-by-side videos, TikTok duet layouts, gaming facecam edits and YouTube reaction videos instantly — without watermark or login.
Create YouTube reaction videos and commentary layouts easily.
Use Reaction Video Maker →Make vertical duet style videos optimized for TikTok and Reels.
Use TikTok Duet Maker →Overlay your camera on any video in your browser with no watermark.
Use Add Facecam to Video Online →Explore targeted creator pages for YouTube reactions, music reactions, movie reactions, gaming reactions, duet videos and short-form split screen formats.
Create YouTube reaction videos with facecam and commentary-friendly layouts.
Open Page →Make duet-style videos online for TikTok, Reels and creator collabs.
Open Page →Create vertical split screen videos for YouTube Shorts and mobile-first content.
Open Page →Unlike heavy desktop editors, ReactionMaker runs entirely in your browser. No installation. No account required. Everything processes locally.
1. Upload two videos.
2. Choose layout.
3. Adjust audio.
4. Select aspect ratio.
5. Export final video.
Want to grow your YouTube or TikTok channel? Learn how to create better reaction videos, improve engagement, and use the right tools effectively.
Step-by-step guide to creating reaction videos using split screen, facecam and duet formats.
Read Full Guide →Compare the best tools for creating reaction videos without watermark.
Read Article →Learn the easiest way to add facecam to videos without installing heavy software.
Read Guide →Learn how to place two videos in one frame for Shorts, reactions and comparison content.
Read Guide →Yes. No watermark and no login required.
No. Everything runs in your browser.
No. Processing happens locally for privacy.