Trim a Video Free: Set Exact Start and End Points

To trim a video, open it in a video cutter, pause the preview where the clip should begin and set that as the start time, do the same for the end time, pick an output format such as MP4, and export. The tool keeps only the frames between those two timestamps and saves them as a new file.

Trimming is the most common edit anyone makes: removing the fumbling seconds before a product demo starts, cutting a webinar down to the one answer a customer asked about, or shortening a clip so it fits a marketplace upload limit. You do not need an editing suite for that. The steps below use the Video Cutter, which runs in your browser, so the footage stays on your computer.

Free toolVideo CutterTrim video clips by selecting start and end timestamps. Choose instant stream copy or frame-accurate re-encoding with full privacy right inside your browser.Open the tool

How to trim a video step by step

1. Open the tool and drop your file. Drag the video onto the drop area or click it to browse. MP4, WebM, MOV, MKV, AVI, FLV and 3GP are accepted, up to 1 GB. A preview player appears with the file name and size above it.
2. Find the first frame you want to keep. Play the preview and pause slightly before the moment your clip should begin. Use the player’s scrubber for rough positioning, then fine-tune by pausing and resuming.
3. Set the Start field. Press the Now button next to Start (s or m:s) to copy the current preview position, or type a value yourself. The field accepts plain seconds such as 12.5 or minutes and seconds such as 1:05.
4. Set the End field the same way. Move the preview to the last moment you want, then press Now next to End (s or m:s). The hint under the field shows the resulting range length, which is a quick check that you did not swap start and end.
5. Choose the Output format. Keep MP4 (H.264) for anything you plan to upload to Shopify, Etsy, eBay, Amazon or social media. Pick WebM for lightweight web embeds, MOV or MKV if an editor downstream prefers them, and AVI only for older players.
6. Press Trim and wait for the progress bar. The first time you use any video tool on the site, the browser downloads the video engine once (about 30 MB). After that, processing starts immediately.
7. Check the result and download it. The trimmed clip appears in a player below the button, with its file size. Play the first and last second before you save it, because that is where mistakes show up.

Free toolVideo CutterTrim video clips by selecting start and end timestamps. Choose instant stream copy or frame-accurate re-encoding with full privacy right inside your browser.Open the tool

Stream copy or re-encoding: why trims sometimes land in the wrong place

Most video files store a complete picture, called a keyframe, only every few seconds. The frames in between just describe what changed. That design is why “fast” trimming tools sometimes start your clip a second or two early: when they copy the original data without decoding it (stream copy), they can only cut cleanly at a keyframe.

The Video Cutter avoids that problem by re-encoding the kept range. It decodes the frames, starts at your timestamp, and writes a fresh H.264 file (or the format you picked). The trade-off is processing time and a tiny amount of generational loss.

Method	Cut accuracy	Speed	Quality	Best for
Stream copy	Snaps to a nearby keyframe, often one to several seconds off	Very fast, barely affected by length	Identical to the source	Rough cuts of long recordings in desktop software
Re-encoding (used by the Video Cutter)	Matches the timestamp you enter	Slower, scales with clip length and resolution	Visually the same at balanced settings, not bit-identical	Product clips, social posts, anything with a precise first frame

Keyframe spacing depends on the camera or app that recorded the video, so treat the stream copy offset as typical rather than guaranteed.

Choosing what to keep before you trim

A good trim starts with a decision about where the clip will live, because that decides the length.

Product videos for online stores

Shoppers scroll quickly, so the first second has to show the product. Cut any intro where you pick up the item or adjust the camera. If your platform has a duration or size cap, check its current help page before you export; limits change, and they differ between product galleries, listings and ads.

Clips from long recordings

For webinars, screen recordings or livestream archives, write down the timestamps while you watch at normal speed, then type them directly into the Start and End fields instead of scrubbing back and forth. Typing 14:32 is faster and more repeatable than hunting for the frame with a mouse.

Several clips from one file

The tool produces one clip per run. Trim the first section, download it, change the Start and End values, and run it again. The source file stays loaded, so you do not need to drop it a second time.

After trimming: format, size and framing

Trimming often reveals a second problem. If the source was an iPhone MOV or a screen recording in WebM or MKV, you may still want a standard file. The MP4 video converter turns those containers into H.264 MP4 with a quality setting, and the guide to converting video files for any device or platform explains which settings suit which destination.

If the trimmed clip is still too heavy for an upload form, run it through the video compressor with a target file size. Trim first, then compress: a shorter clip reaches a given size at a much higher quality. And when the framing is the issue rather than the length, the Video Cropper for removing black bars cuts the edges of the picture instead of its duration.

Screen recordings exported as WebM are a frequent source of playback trouble after trimming. The walkthrough on converting WebM to MP4 locally in the browser covers that case in detail.

Common mistakes

• Typing the end time as a duration. Entering 10 in End when you meant “ten seconds after the start” gives you a clip that ends at 0:10 of the source, or an almost empty clip. Always enter End as a position in the original video and read the range hint under the field.
• Trimming a file you have already compressed several times. Each re-encode adds a little loss, and the losses compound. Trim from the original recording whenever you still have it.
• Leaving the output as MOV or AVI for a web upload. Some upload forms reject those containers or cannot preview them. Choose MP4 (H.264) unless you know the destination wants something else.
• Skipping the check of the first and last second. A cut that lands mid-word or on a blurry camera move looks careless. Play the edges of the result and move Start or End by 0.2 to 0.5 seconds if needed.
• Loading a multi-gigabyte recording. Files above 1 GB are refused, and large high-resolution files can still run out of browser memory. Compress or split the recording first, or close other heavy tabs before you trim.

Frequently asked questions

Does trimming a video reduce its quality? Trimming with re-encoding causes a small, usually invisible quality loss, while trimming with stream copy causes none. The Video Cutter re-encodes to H.264 at a balanced quality setting, so the clip looks the same on a phone or laptop, but it is not a bit-for-bit copy of the original frames.

Can I cut a section out of the middle of a video? Yes, but it takes two trims and a merge. Export the part before the unwanted section and the part after it as two clips, then join them with a video merger in the right order.

How long does it take to trim a video in the browser? A one-minute 1080p clip usually takes somewhere between a few seconds and a couple of minutes. The time depends on your computer, the resolution and the length of the kept range, and the first run also downloads the video engine once.

Is there a file size limit for trimming? Yes, the Video Cutter accepts files up to 1 GB. Larger files can exhaust browser memory, so split or compress very long recordings first.

Trim your clip now

Trimming comes down to two timestamps and a format choice. Pause, press Now for the start, pause again, press Now for the end, keep MP4, and export. Because the cut is re-encoded, the clip begins on the frame you picked, and because it runs locally, unreleased product footage or client recordings never leave your machine. Open the Video Cutter and cut your first clip.