Trimming a video means keeping the part you want and dropping the rest: dead air at the start, a long pause in the middle, or a few seconds off the end. Supercut does it in your browser, with no software to install and no file to upload. You describe the cut in plain English and a deterministic engine runs it on your device.
People use the words interchangeably, but they describe slightly different jobs. Trimming usually means shortening a clip from one or both ends, like dropping a slow intro or a hanging outro. Cutting can mean the same thing, or it can mean removing a section from the middle and joining what is left. Both come down to choosing a range to keep and discarding the rest. The one thing to have ready is your timestamps. Watch the clip and note where the good part begins and ends, in minutes and seconds. With Supercut you type those numbers into a prompt instead of dragging handles on a timeline, so having them noted makes the cut exact on the first try.
Supercut runs entirely in your browser using WebAssembly (FFmpeg.wasm). When you add a clip, it loads into the page on your own machine. Your footage is never uploaded to a server. The only thing that leaves your device is the text of your prompt, so the AI can plan the edit. It turns your plain-English request into a precise trim command, and the engine executes it locally. Because the file stays on your device, it never sits on someone else's server and you keep control of the output quality. Once the page has loaded, the trim itself even works offline.
There is no timeline to scrub. You type what you want, and specific prompts give the cleanest cut. Good examples: "trim from 0:05 to 0:20", "cut the first 10 seconds", "keep only the last 30 seconds", or "remove from 1:15 to 1:40". Write timestamps in minutes and seconds so the range is unambiguous. Need more than one change? Trim first, then ask for the next edit in the same session, like adding captions or cropping to 9:16 for TikTok or Reels. Each operation builds on the result of the last.
Open the Supercut editor and drop your video in. It loads straight into your browser on your device. There is no upload, and no account is needed to try your first export.
Type the range you want, such as "trim from 0:05 to 0:20" or "cut the first 10 seconds." Supercut reads the prompt and plans the exact trim, then maps it to a deterministic command.
The trim runs locally and you get the result back in the editor. If the range is off, edit your prompt and run it again until it lands where you want.
Export the trimmed video and save it to your device. The file stayed on your machine the whole time, so nothing was ever uploaded.
Trim and cut video in your browser. Drop a clip, say where to cut, and download it, your footage never leaves your device. No upload, no watermark to start.
Merge two or more clips into one video in your browser. Join footage end-to-end without uploading, multi-clip editing on your device.
Crop and reframe any video to 9:16 for TikTok, Reels and Shorts. Subject-tracking keeps the action in frame, all in your browser, no upload.
No. Supercut trims your clip entirely in your browser using WebAssembly. The video never leaves your device. Only the text of your prompt is sent, so the AI knows where to cut.
Common formats like MP4, MOV, and WebM. You can also convert to a different format on export if you need one.
Trimming works from your source file. You choose the export settings, so you decide the final resolution and size.
Yes. Describe the section to remove, like "remove from 1:15 to 1:40," and Supercut keeps the parts before and after and joins them.
You can try your first export with no account. A paid plan unlocks unlimited watermark-free exports and every tool, from 4.99 per month billed yearly (59.88 per year), 9.99 per month monthly, or 199 one-time lifetime. Cancel anytime.