Any two sources
Combine a finished project, an avatar video, an AI clip, a curated gameplay clip, or a direct upload — in either half.
The problem
Split-screen videos eat hours in an editor
The problem
The split-screen / reaction format prints on TikTok and Reels — a talking head or app demo on one half, gameplay or B-roll on the other. But building it by hand means importing two clips, lining them up, masking, syncing audio, adding captions and music, and re-rendering every time you tweak the split.
With Crealix
Pick two videos — a finished Crealix project, an avatar, an AI clip, a gameplay clip, or an upload — and Crealix stacks them into one split-screen short. Drag the split, choose which half you hear, add optional AI narration, captions, music and SFX, and even spotlight one video full-frame for a beat. Render a clean vertical short in minutes.
How it works
Three steps from two clips to a finished split-screen short.
01
Pick two videos
Choose the two halves from your projects, avatars, AI clips, gameplay library, or an upload — top/bottom or side-by-side.
02
Set the layout & audio
Drag the split ratio, pick which clip is heard, and optionally add an AI-written narration, captions, music and SFX.
03
Spotlight & render
Add spotlight moments that cut to one video full-frame, then render a clean vertical short and post it anywhere.
Everything baked in
From the two source clips to captions and spotlights, the whole composition is handled for you.
Draggable split
Top/bottom or side-by-side, with a draggable divider and quick 50/50, 60/40 and 70/30 presets in any aspect ratio.
Pick what you hear
Each half has its own audio. Avatars keep their voice automatically; mute or unmute any clip, or narrate over the whole thing.
Spotlight & captions
Cut to one video full-frame for chosen moments, and auto-generate captions from whatever audio is heard.
Who it's for
Anyone who wants the split-screen / reaction format without the editor grind.
Faceless & UGC creators
Pair a talking clip or avatar with gameplay or an app demo and post the format that keeps people watching — daily.
SaaS & app marketers
Put a screen recording on one half and a reaction or narration on the other to make product demos actually watchable.
Agencies & editors
Produce split-screen short-form for clients at volume without rebuilding the layout and re-rendering by hand each time.
Split-screen videos made with Crealix
Two clips, one short — talking heads, avatars, app demos and gameplay, composed end to end.
Crealix vs. a manual video editor
An editor makes you rebuild the split every time. Crealix composes and finishes it for you.
Crealix
Manual editor
Pull both halves from projects, avatars, AI clips or gameplay
Crealix
Manual editor
Pull both halves from projects, avatars, AI clips or gameplay
Draggable split + presets in any aspect ratio
Crealix
Manual editor
Draggable split + presets in any aspect ratio
Auto narration, captions, music & SFX
Crealix
Manual editor
Auto narration, captions, music & SFX
Spotlight moments + one finished vertical video
Crealix
Manual editor
Spotlight moments + one finished vertical video