[Registration not required] GIF grid synthesis/save side by side | Connect multiple videos/GIFs into one | ZeroTools

It is a completely local tool that arranges multiple GIF animations, videos, and images in a grid (2x2, etc.), plays them all at once, and synthesizes and outputs them as a single MP4 video or GIF animation. No registration is required and the process can be done safely.

Combine GIFs side by side in one animation

Place files side by side, vertically, or in a grid and play them together. This tool does not join clips into an A-then-B sequence.

2 files → 2 columns × 1 row
2 files → 1 column × 2 rows
4 files → 2 columns × 2 rows

Layout & output settings

Columns

Number of rows (Rows)

canvas resolution

Width (px)

Height (px)

Gap:10px)

Outer frame margin (Padding:10px)

background color

fitting

Output format

Playing time (seconds)

Frame rate (FPS)

grid canvas preview

Arrange them in the set layout and play them all at once in real time.

No media selected

First, upload and arrange your GIF files, video files, or images.

Drag and drop files or click to add files

Supported files: GIF (.gif), video (.mp4, .webm), still image (.png, .jpg)

About this tool & security

This is a tool that arranges multiple uploaded GIF animations, videos (MP4/WebM), and still images in a single grid layout, plays them all at once, and exports them as a single video or GIF animation.

💡 How to use:

Upload the files you want to arrange (the order can be changed freely by dragging the list).
Configure the grid by specifying the number of columns and rows (for example, set 2 columns and 2 rows for 4 files in a 2x2 arrangement).
Select GIF animation or video (MP4/WebM) in "Output format" and set the output playback time (seconds) as necessary.
"Save/Export grid image"When you press , frames will be automatically composited in the browser and download will begin.

*Like other ZeroTools services, all data processing and synthesis is performed on the user's PC/browser (completely local), and there is no file transmission or upload to an external server.

Loading tool interface...

Client-Side Secure Execution

This tool executes entirely in your browser sandbox. None of your input strings, files, or configurations are uploaded to any external server.

ZeroTools: Browser Processing & Privacy

ZeroTools focuses on tools that process input on your device. Check each tool’s scope and limitations before use.

Processing and privacy policy

Article Index

Chapter 1

Technical Specifications & Architecture

Are input files uploaded? This tool parses, renders and exports input media on your device. Requests to load the website and processing code are separate from input-file processing.

Can I mix GIFs, videos and still images? Yes. Arrange GIFs, browser-playable MP4/WebM videos and PNG/JPEG images for simultaneous playback in a grid. This is not sequential video concatenation.

Can I change duration and frame rate? Choose a duration from the 1–15 second options and 10, 12, 15, 20, 24 or 30 FPS. Available video output formats depend on browser support.

Frequently Asked Questions (FAQ)

This tool parses, renders and exports input media on your device. Requests to load the website and processing code are separate from input-file processing.