Are files uploaded for this tool?

This browser tool processes the selected media locally on this device. The file is not uploaded to ArtPlayer servers for this workflow.

Will the export have a watermark?

No. ArtPlayer browser tools do not add watermarks to exported files.

Why can processing take time?

The work runs in your browser, so speed depends on your device, browser, memory, source size, and the export settings needed for the result.

Which browsers work best?

Recent Chrome, Edge, and other modern Chromium browsers usually work best for heavier browser media processing.

What should I try if a large file fails?

Try a smaller source, close other heavy tabs, reduce resolution or duration first, and keep the tab open until the export finishes.

How many videos can I combine?

This first version combines exactly two videos in a side-by-side or top-and-bottom layout.

What happens when the videos have different lengths?

The export ends when the shorter video ends, so neither side freezes or turns black.

Can I keep audio from both videos?

Yes. Mix both tracks with separate volume controls, keep either track, or export muted video.

Are my videos uploaded?

No. Decoding, compositing, audio mixing, and MP4 export run locally in your browser.

Browser video tool

Split Screen Video

Local processingTwo videosNo upload

Place two videos side by side or top and bottom, choose the canvas ratio and audio, then export a local MP4.

Source videos

Choose two videosDrop exactly two video files here.

Layout

Arrange the two videos horizontally or vertically.

Side by sideTop and bottom

Output ratio

Video fit

Audio

First video: 100%

Second video: 100%

Video order

The export ends when the shorter video ends. Each source can be up to 10 minutes when browser memory allows.

How it works

Three steps to finish the browser workflow.

1
Choose two videos
Place two videos side by side or top and bottom, choose the canvas ratio and audio, then export a local MP4.
2
Layout
Arrange the two videos horizontally or vertically.
3
Create split screen
Choose exactly two videos, select a split layout, output ratio, fit and audio mode, then render the MP4 locally in this browser.

Everything you need

Core details about privacy, browser support, output, and practical limits before you start.

Two split layouts

Place two videos side by side or stack them from top to bottom.

Canvas controls

Choose landscape, portrait, or square output and decide whether each video fills or fits its half.

Private local export

Mediabunny, WebCodecs, Canvas, and Web Audio process both files without uploading them.

Frequently asked questions

Find quick answers about privacy, browser support, exports, and what to try when a file is heavy.

Continue editing with nearby ArtPlayer tools that work with the same local, browser-first workflow.

Picture in Picture

Overlay a second video as a floating window on a background video and export a local MP4.

Merge Video

Join multiple clips in order and export one combined MP4 from the browser.

Resize Video

Change video dimensions for landscape, portrait, square, or original-ratio outputs.

View all tools