Most free video editors are free because of what they take from you: your file. OpenCut takes the other road. The editing happens on your own device, and your video never leaves it.
If you have ever cut a clip for a birthday video or a small business, you know the routine: open a website, upload the file, wait, edit, download. That upload step is where the interesting part happens, and it is the part nobody talks about.
What OpenCut actually is
OpenCut is a video editor that runs inside your web browser, the program you already use to read websites. You open a page, drag in a clip, cut it, and export the result. There is nothing to install and no account to create.
It is free and it is open source, which in plain language means the code behind it is public: anyone can read it, copy it, or check what it really does with your files. It works on Windows, Mac and Linux, and on phones and tablets through the browser. More than 90,000 people have marked it on GitHub, the largest public site for code, which is a rough measure of how many developers are watching it.
One honest detail: it is still an early beta, and its own front page says so. Apps for desktop and phone are being written, and parts of the project are being rebuilt, so features can move between versions.
Why this matters more than it sounds
When you drag a video into a typical online editor, the file is uploaded to that company’s computers. From that moment, a copy of your holiday clip, your child’s birthday, or a client’s advert sits on someone else’s machine, under someone else’s rules. You cannot see it, and you usually cannot delete it.
OpenCut’s privacy page states that all editing and processing happens locally on your device, and that your video and audio files are never uploaded or stored. The subtitles it can generate, known as auto captions, are made by a model running inside your browser rather than on a server. And because there are no user accounts, there is no email address or profile to collect: your projects are saved inside your browser, not in their database. It is the same principle that keeps a chat private when nothing leaves your device.
Two outside services are named on that page: a hosting company that delivers the page, and an anonymous visitor counter. According to the page, it counts visits, not clicks, and not what you do inside the editor.
What you can actually do with it
- Open opencut.app in Chrome, Firefox, Edge or Safari.
- Drag a video in from your computer or your phone. Nothing gets uploaded.
- Cut pieces out, split a clip in two, and move the pieces around.
- Add text, stickers, or a coloured or blurred background behind the video.
- Change how fast a clip plays while the voices still sound normal, or adjust the volume.
- Hide part of the picture with a mask, for example to cover a face or a number plate.
- Switch on auto captions and get subtitles without sending your audio anywhere.
- Export the finished video and post it wherever you like.
There is no sign-up in that list, and no watermark on the result. Their terms say it plainly: no watermarks, free for personal and commercial use, including paid work for clients.
The three things people get wrong
If it runs in a browser, the video must be going to a server.
That is true of most online tools, and it is exactly what this one avoids. The browser is only the window you look through; the work happens on your own device. You do not have to take it on faith either, because the code is public and anyone can check the claim. That is the whole point of open source.
Free means a watermark, a paywall, or a hidden catch.
Here the catch is not money. The terms state there is no watermark and no claim of ownership over what you make. The real limitation is age: it is beta software, and it is not yet as polished as the paid editors.
I searched for OpenCut and it asked me to upload my video.
Two different products share the name. opencut.app is the free, open-source editor described here. opencut.video is a separate commercial service: it asks you to upload your video and sells AI editing plans. If a page wants your file before you can start, you are not on the open-source one.
What to watch for
- It is early beta software. Expect missing features and rough edges, and keep your original files somewhere safe.
- Editing video uses your own device’s power, so a long or high-resolution clip will feel slow on an older phone or a computer with little free space.
- Your projects live inside your browser. Clearing browsing data can erase them, so export finished videos instead of trusting the browser copy.
- More is coming: desktop and phone apps, extra features, a rebuilt core. Expect things to move around.
- One habit worth keeping with any free editor: check whether the page asks you to upload your file before you begin.
The one thing to remember
A free editor usually charges you in files. OpenCut is a rare case where the video stays on your device, and because the code is open, the promise can be checked by anyone, including you.