Add video fade in and out
Add a fade-in at the start and a fade-out at the end of a video, with or without the sound.
Private: it runs in your browser and your file is never uploaded. How to check it
MP4, MOV, WebM or MKV · up to 500 MB · processed on your device, the file is never uploaded.
You can also drag a video onto this page.
0 to 10 seconds each; together they cannot exceed the duration. Enter 0 to skip one.
Your files are processed here, on your device
We do not send the contents of your files or text to any server: everything is processed in your browser’s memory. No account is needed, there is no daily quota and we use no analytics or trackers. Each tool has size limits to protect your device’s memory.
A connection is only needed to load the site. After that you can disconnect and the tools keep working (some previews may need the connection). Hosting may receive technical visit data. Favorites store only tool identifiers in this browser.
How we handle your data →How to use this tool
- Choose the video on your device or drag it onto the page.
- Adjust the options and press the main button; progress is shown while it works.
- Check the preview of the result and download it.
An example you can verify
Add a fade-in at the start and a fade-out at the end of a video, with or without the sound.
Example input
0:06 · 1 s + 1 s
Expected result
0:06 · 0 → 100 → 0 %
Check the preview of the result and download it.
Add video fade in and out: uses and practical guidance
Set a fade-in at the start and a fade-out at the end, each from 0 to 10 seconds; 0 skips one of them. Together they cannot exceed the video’s duration. The picture rises from black or white, or dissolves into that color, and you can apply the same ramp to the sound so volume rises and falls with the picture. Only the first and last seconds change; the rest keeps its content. The video is re-encoded with the same duration and size. The very last frame may not reach full black because a fade is measured at the start of each frame. If you faded the sound too, listen to the beginning and the end with headphones and keep the original.
Add video fade in and out. The video is opened and processed in your device’s memory and is never sent to a server, so speed depends on your computer and the file size. Copying tracks without re-encoding is almost instant; re-encoding can take several minutes for long or high-resolution videos. While it works, the page shows progress and a cancel button. Keep the tab open and visible until it finishes, because some browsers slow down background tabs. The 500 MB limit protects device memory. If the file is larger, split it into parts first. The original is never modified: the tool creates a new file that you download.
Add video fade in and out. Play the complete result before using it: check that picture and sound stay in sync, that no seconds are missing at the start or end, and that quality is sufficient for your purpose. Open the file in another player or in the application where you will publish it, because every platform has its own limits for duration, size and format. If the result does not play, try MP4, the most compatible format. Always keep the original video until you have verified the new one, and do not overwrite the source file. If the video contains personal data, remember that this tool does not hide faces or voices: it only changes the file.
A practical check before using the result
Add video fade in and out. Add a fade-in at the start and a fade-out at the end of a video, with or without the sound. Check the preview of the result and download it.
Settings and limits
Set a fade-in at the start and a fade-out at the end, each from 0 to 10 seconds; 0 skips one of them. Together they cannot exceed the video’s duration. The picture rises from black or white, or dissolves into that color, and you can apply the same ramp to the sound so volume rises and falls with the picture. Only the first and last seconds change; the rest keeps its content. The video is re-encoded with the same duration and size. The very last frame may not reach full black because a fade is measured at the start of each frame. If you faded the sound too, listen to the beginning and the end with headphones and keep the original.