Can I use Video Joiner on a phone or offline?

Yes. The layout adapts to phones and tablets, and because the logic ships as static client-side code, Video Joiner keeps working on intermittent connections once the page has loaded.

How does Video Joiner work without uploading my data?

Video Joiner runs entirely inside your browser's sandbox: the page loads once, and every operation after that executes on your own device's CPU. No input, file, or result is transmitted to any server — you can even watch the network tab stay silent while you use it.

Does Video Joiner cost anything or require an account?

No. Video Joiner is completely free with no usage caps, subscriptions, or sign-up forms — supported by unobtrusive ads, and usable for personal and commercial work alike.

Video Joiner

Q: What exactly does Video Joiner do?

Concatenate clips into one video Combine multiple video clips into a single file. Best results come from clips with matching resolution and codec — joined locally in your browser.

Concatenate clips into one video

Free Private No uploads

Join videos

Drop a file to processProcessed by FFmpeg compiled to WebAssembly — entirely on your device

Best results come from clips with matching resolution and frame rate — they're re-encoded to a consistent format during the join, so mixed sources still produce a valid file. Order follows the order you selected the files.

100% Private & In-Browser

Processed locally using client-side JavaScript. Your files and data never touch any server.

Instant & Unlimited

No registration, no waiting queues, and no limits on file conversions or generations.

Tool Overview & Guide

What is Video Joiner?

Combine multiple video clips into a single file. Best results come from clips with matching resolution and codec — joined locally in your browser.

Step-by-Step Instructions

How to use Video Joiner

Open Video Joiner in any modern web browser on your computer, tablet, or smartphone.

Select, drag, or drop your file directly into the Video Joiner workspace.

The tool processes your data in real time directly on your device using WebAssembly-compiled FFmpeg cores and browser WebCodecs hardware APIs.

Copy your generated result to your clipboard, preview the output, or save your file with a single click.

Key Capabilities

No Account, No Email, No Watermarks — open the page and start working immediately.
100% Client-Side In-Browser Execution — your inputs, files, and generated data never touch any remote cloud server.
Real Media Decoding — a WebAssembly FFmpeg core processes your audio and video on your own CPU.
Concatenate clips into one video

Common Use Cases

Handling private or confidential material that should not be uploaded to third-party cloud services.
Combine multiple video clips into a single file. Best results come from clips with matching resolution and codec — joined locally in your browser.
Running a quick one-off task — once loaded, most tools keep working even if the connection drops.
Content creators, podcasters, video editors, and audio engineers who need to demux and extract audio/video streams directly on local CPU cores without installing software.

Clear Answers

Frequently Asked Questions

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