Video Overlay

Video Overlay | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, select, range
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Video Overlay tool allows you to easily merge two videos by placing one on top of another in a customizable picture-in-picture (PiP) layout. Simply upload your background base video and overlay video, then adjust the position, scale, and opacity to create professional composite videos in MP4, WebM, or MKV formats.

When to use

When creating reaction videos or gameplay commentary where you need a smaller facecam video overlaid on the main footage.
When adding a sign language interpreter video to the corner of an educational or public announcement video.
When placing a semi-transparent watermark, animated logo, or secondary B-roll clip over a primary video track.

How it works

1Upload your primary background video as the Base Video and the secondary clip as the Overlay Video.
2Select the overlay position from options like top-right, bottom-left, or center, and adjust the scale percentage to resize the overlay.
3Set the opacity level to make the overlay semi-transparent if needed, and choose your preferred output format (MP4, WebM, or MKV).
4Process the video to render the composite layers and download the final picture-in-picture file.

Use cases

Creating picture-in-picture gameplay videos with a facecam overlay in the top-right corner.
Adding a semi-transparent corporate logo or watermark video over promotional footage.
Embedding a sign language translation video at the bottom-right of an instructional lecture.

Examples

1. Gaming Walkthrough with Facecam

Gaming Content Creator

Background

A streamer wants to combine their high-definition screen recording with a separate webcam recording of their reactions.

Problem

The creator needs to place the webcam footage in the top-right corner of the gameplay video without manual timeline editing in heavy software.

How to use

Upload the gameplay recording as the Base Video and the webcam recording as the Overlay Video. Set the position to 'top-right', scale to 25%, and select MP4 as the output format.

Base Video: gameplay.mp4, Overlay Video: webcam.mp4, Position: top-right, Scale: 25%, Opacity: 1.0, Output Format: mp4

Outcome

A single MP4 video showing the gameplay with the webcam reaction perfectly scaled and positioned in the top-right corner.

2. Adding a Semi-Transparent Watermark Video

Video Editor

Background

A production house needs to distribute preview copies of a documentary while protecting their intellectual property.

Problem

They need to overlay a moving watermark video in the center of the main footage with low opacity so it doesn't block the view entirely.

FAQ

What video formats are supported for output?

You can export your overlaid video in MP4, WebM, or MKV formats.

Can I adjust the size of the overlay video?

Yes, you can scale the overlay video from 5% up to 100% of the base video's size.

Where can I position the overlay video?

You can position it in any corner (top-left, top-right, bottom-left, bottom-right), center-aligned (top-center, bottom-center), or directly in the center.

Can I make the overlay video semi-transparent?

Yes, you can adjust the opacity slider from 0.1 (nearly transparent) to 1.0 (fully opaque).

Is there a file size limit for the uploaded videos?

Yes, the base video limit is 100 MB and the overlay video limit is 200 MB.

Base Video: documentary_draft.mp4, Overlay Video: watermark_loop.mp4, Position: center, Scale: 50%, Opacity: 0.3, Output Format: mkv

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Inputs

Result

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Gaming Walkthrough with Facecam

2. Adding a Semi-Transparent Watermark Video

FAQ

Video Samples

Video AV1 Samples

Video H.264 Samples

Video H.265 Samples

Audio Overlay

Stream Passthrough Trimmer

Video Aspect Ratio

Video Audio Replace

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