Fade a video in and out
The difference between a clip that starts and a clip that begins. Two seconds of fade is what makes phone footage feel edited.
- Runs entirely in your browser
- Works offline
- No upload
- No sign-up
- No watermark
Loading the tool…
How it works
- Drop the video or audio file.
- Set the fade-in and fade-out lengths in seconds.
- Start, and download the result.
Why nothing is uploaded
Every operation on this page is done by code running inside your browser tab, using the same engine that renders web pages. The file is read from disk into your tab’s memory, transformed there, and written back out as a download. It is never sent anywhere — not to us, not to a third party.
Verify it yourself
- Open your browser’s developer tools (F12) and select the Network tab.
- Load your file and run the tool.
- The only requests you will see fetch the tool’s own code — and, for a few heavy tools, their open-source engine from a public CDN — plus one small page-view ping to loreatec.jp (page address and title, nothing more). None of them carry your file.
Frequently asked questions
Why does the audio have its own checkbox?
Two reasons. A video with no audio track fails if the engine is asked to fade audio that does not exist, so you can switch it off. And sometimes you want the picture to fade while the sound cuts — that is an editorial choice, not an error.
Where does the fade-out start?
It ends exactly at the end of the file: a 2-second fade-out on a 30-second clip runs from 0:28 to 0:30. The tool reads the duration from the file, which is why a file whose length cannot be read refuses to fade out.
Can I fade to white instead of black?
Not here. Black covers the overwhelming case; a colour option would double the controls for a choice almost nobody makes. A video editor is the right tool for a stylised fade.
Is my video uploaded?
No. The video engine is compiled to WebAssembly and runs inside this tab; the file is read from disk into memory and the result is written back out. Nothing is transmitted, which is why a two-hour film will not work here — your device is doing all of it.