Video Trimmer

Most videos do not need to be shared in their entirety. A screen recording might have thirty seconds of dead air at the start. A phone clip might include a long, shaky walk before the interesting part begins. A presentation recording might drag on well past the point worth keeping. Trimming video is one of the most common editing tasks people face, and it should not require installing software, creating an account, or sending your footage to a remote server. This free online video trimmer lets you cut any video to the exact length you need, entirely in your browser.

The tool runs on WebAssembly, a technology that lets your browser process video locally without uploading anything. When you select a file, it loads into your browser's memory. You choose the start and end points using a simple slider, click the trim button, and the result is ready to download. Your video never leaves your device. There is no cloud processing, no temporary hosting, and no third-party access. For anyone working with personal footage, client recordings, internal demos, or any content that should stay private, this matters. The processing uses your device's CPU directly, which means a modern laptop or phone handles most clips in seconds while older hardware may take a bit longer.

You might trim a video for dozens of everyday reasons. Social media platforms enforce strict duration limits. Instagram Reels max out at ninety seconds. TikTok clips work best between fifteen and sixty seconds. YouTube Shorts cap at sixty seconds. A two-minute phone video of your child's first steps becomes a shareable highlight when you cut out the setup. A forty-five-minute lecture recording becomes useful when you extract the ten-minute segment that actually covers the topic you need. A product demo gains impact when you remove the awkward introduction and start right at the feature showcase.

The tool accepts five of the most widely used video formats. MP4 files, which dominate both professional and personal workflows, process quickly and reliably. WebM files from screen recorders and browser-based tools work without issues. MOV files from iPhones, iPads, and Macs are fully supported. AVI files from older cameras and archiving workflows process correctly, and MKV files from advanced editing setups are also accepted. The only hard limit is file size: your video needs to be under one hundred megabytes, which covers the vast majority of short clips, screen recordings, and social media content.

When you trim a video with this tool, the output is re-encoded to ensure frame-accurate cuts. Unlike simple stream-copying, which can only cut at keyframe boundaries and sometimes produces glitches, this approach processes every frame precisely. The trade-off is a slight increase in processing time, but the result is a clean, accurate cut that starts and ends exactly where you specified. The output is saved as MP4, which plays on virtually every device, browser, and social platform without compatibility issues.

The trimming interface is designed for precision without complexity. Two draggable handles mark the start and end of your selection. As you move them, the duration updates in real time so you always know exactly how long the output will be. You can play the video to preview your selection before committing to the trim. This kind of immediate feedback means you can make fine adjustments and get the cut exactly right without repeatedly exporting and reviewing.

Privacy is baked into the architecture, not added as an afterthought. Because the processing happens in your browser, there is no moment during the workflow where your video exists on someone else's server. There is no upload step, no processing queue, and no storage period. When you close the tab, everything is gone. This makes the tool a practical choice for sensitive content like medical recordings, legal footage, unreleased creative work, confidential presentations, and personal videos you simply do not want floating around on the internet.

The tool works on any device with a modern browser. Windows, macOS, Linux, ChromeOS, Android, and iOS are all supported. Chrome, Firefox, Safari, and Edge handle the underlying technology without issues. There is nothing to install, no browser extension required, and no configuration needed. The interface adapts to different screen sizes, so trimming a video on a phone feels just as straightforward as trimming one on a desktop.

There are a few practical things worth knowing before you start. Videos larger than one hundred megabytes will not upload, so longer recordings or high-resolution files may need to be compressed or split in another tool first. The output is always saved as MP4 regardless of the input format, which ensures broad compatibility but means you cannot export to WebM or MOV directly. And because the re-encoding process uses your device's CPU, processing speed depends on your hardware. A recent laptop or phone handles most clips in seconds, while an older machine may take a bit longer.