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About Add Text
Add Text — free, private, browser-based video tool
Overlay a title or caption with full control over font, color, and position. It takes video and gives you MP4. It runs in your browser, so the file is processed on your own device.
Why use Add Text
- ·Files stay on your device — nothing is uploaded
- ·No signup needed
- ·Works in any modern browser, on any OS
- ·Free daily use; Pro removes limits and watermarks
How to use it
- 1Drop a video file on the page, or click to choose one.
- 2Pick the options you want.
- 3Download the MP4 file.
What Add Text does
Overlay a title or caption with full control over font, color, and position. The result is a MP4 file you download directly.
How it works
Hybrid renderer: WebGL2 for color grading and effects, WebCodecs for decode/encode, ffmpeg.wasm for muxing and exotic codecs. Multi-threaded via SharedArrayBuffer where COOP/COEP is available. The processing code runs inside the page, so your file is not uploaded to a server — you can confirm this in your browser's DevTools → Network tab.
Frequently asked questions
Does Add Text upload my files?+
No. Add Text runs in your browser and processes the file on your device. Nothing is sent to our servers.
Is Add Text free?+
Yes, with a daily free allowance and no signup. Xonvert Pro ($4.99/month) removes the daily limits and the watermark on exported files.
Do I need to install anything?+
No. It works in any modern browser on Windows, macOS, Linux, ChromeOS, Android and iPad.
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