Cut a video
Keep just the part you need from a long recording, without uploading the whole thing anywhere.
- Nothing is uploaded
- Works offline after first visit
- Open source
- No watermark · limit is your device’s memory; phones hold less
Cut a part out of a video in your browser. Set the start and end on the player and save the clip in seconds, same quality. It is free, needs no account and adds no watermark, and your files are not uploaded: everything runs in your browser on your device. The size limit is your device’s memory, and phones hold less; give the page a short while after one visit to save itself for offline use, and then it works offline.
Your iPhone may take a few seconds to prepare the video first, longer if it's stored in iCloud.
Done
Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
Most of the time you only need a slice of a video: the goal from a match, the answer from a two-hour call recording, the thirty seconds of a screen recording that shows the bug. Drop the file here, scrub to the first moment you want and press Set start, then to the last and press Set end.
The clip is cut by copying the video and sound between those points into a new file, rather than re-encoding them. That is why it takes seconds even for a long 4K file, and why the clip looks exactly like the original. If the start needs to be precise to the frame, tick the exact option and the clip is re-encoded instead.
Cutting happens in your browser. Recordings of meetings, family videos and gameplay are not uploaded to a converter site, there is no watermark, and the limit on the size of the video you start from is your device’s memory (phones hold less).
The Start and End boxes take seconds, not minutes, which catches people out on long recordings. To cut from 12:30 to 14:05, type 750 and 845, or play to those moments and press Set start and Set end instead. Below the boxes a line confirms what you will get, such as “Keeps 1:35.0, from 12:30.0 to 14:05.0”, and it turns into a warning if the end comes before the start, so you can check before you cut.
The clip comes out in the same format as the file you started with: an iPhone MOV gives a MOV, an OBS recording in MKV gives an MKV, and a WebM gives a WebM, each with -trimmed added to the name. If the clip is going somewhere that wants MP4, such as an upload form or a Windows PC without the right codecs, convert it afterwards with Video to MP4, which for H.264 video copies the streams again and usually takes seconds.
How it works
- Drop the video, or tap to pick it.
- Scrub to the start and press Set start, then to the end and press Set end.
- Press Trim and save the clip.
In your browser, not on a server
Your browser plays the video from the file on your device so you can pick the start and end. Mediabunny (MPL-2.0) then reads the MP4, MOV, WebM or MKV container in your tab and copies the packets between those two points into a new file of the same type, starting from the nearest key frame within half a second. When there is none that close, or when you ask for an exact cut, the clip is decoded and re-encoded by your browser’s own video encoder (WebCodecs).
Compared with upload-based tools: Online video cutters upload the whole file just to throw most of it away, cap free videos at a few hundred megabytes and often add a watermark. Here nothing is uploaded, and a clip from a 2 GB recording is cut in seconds because the video is copied rather than re-encoded.
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
Can I cut several parts out at once?
One clip per run. To make several, trim the first, then change the start and end and trim again; the video stays loaded.
Can I cut the middle out and keep the rest?
Not in one step. Trim the part before and the part after as two clips; joining them needs a video editor.
Why will the player not open my video?
The player uses your browser's own video decoder. iPhone videos recorded in HEVC do not play in Chrome or Firefox on Windows and Linux, so the page cannot show them to pick the times. Open the page in Safari, or on Windows try Edge, which plays HEVC on many PCs that have the HEVC extension installed.
Can I cut a video on my phone?
Yes. The video opens in the page's player; drag the progress bar to the start, tap Set start, then do the same for the end and tap Set end. Placing a finger precisely is hard on a small screen, so adjust the numbers in the Start and End boxes, which move in tenths of a second, until the line below shows the right times.
Is the file uploaded anywhere?
No. There is no server in this process. The page is a static file and the work is done by code running inside your browser tab. Give the page a short while after one visit to save itself for offline use; then you can turn off Wi-Fi and it still works.
More video and audio tools
Trim video
Cut a clip out of a longer video without uploading it. Most cuts take seconds and keep the original quality.
Add audio to video
Put music or a voice-over on a video, or replace its sound. The picture is copied as it is, and nothing is uploaded.
Reverse video
Make a clip play backwards, for a rewind effect, a boomerang or a laugh. Done on this device, never uploaded.
Video to JPG
Turn a video into still images: a few good frames or every single one. Done on this device, never uploaded.
Other conversions
Guides
- How to trim a video without installing an appiPhone, Android, Windows and Mac can all trim a video with what is already installed. Here is how on each.
- How to reverse a videoRewind effects are popular, but most phones have no reverse button. Here is where it exists, and a way to do it without installing an app.
- How to crop a videoCropping cuts away the edges of the picture, which is different from trimming the length. Here is where each device does it, and a private browser option.