Video trimmer

Cut a section out of a video in seconds — the streams are copied, not re-encoded, so it's fast and lossless.

Loading tool…

A video trimmer cuts a clip down to a chosen start and end time. This one works by stream copy — sometimes called lossless trimming — which means instead of decoding every frame and re-encoding a brand-new file, it copies the existing video and audio packets straight into a fresh container. That's why trimming even a long clip finishes in seconds, and the copied streams are byte-for-byte identical to the source, with none of the generational quality loss you get from re-exporting in a video editor.

Creators reach for a fast trim whenever a clip runs longer than a platform allows or has dead space to cut off the ends. Shortening a Suno visualizer or lyric video to fit a short-form time limit, pulling a preview out of a full track video, or dropping the empty seconds before the music kicks in are all quicker here than opening a full editor. Because the whole thing runs in your browser, there's no upload, no watermark, and no account to trim a clip online.

How it works

  1. 1

    Drop the video.

  2. 2

    Enter start and end times.

  3. 3

    Click trim and download the clip.

When to use it

  • Trim a Suno visualizer down to 60 seconds so it fits an Instagram Reels or TikTok upload without getting auto-cropped.
  • Cut the silent lead-in and outro off a screen-recorded music video before posting it to YouTube.
  • Pull a 15-second highlight out of a longer track video to preview in a Discord server or an X post.

FAQ

Why does my cut start slightly early?

Lossless trimming can only cut at keyframes, so the start snaps to the nearest one — usually within a second or two. Frame-exact cuts require re-encoding.

Is there any quality loss?

None — the video and audio streams are copied byte-for-byte into the new file.

What video formats can I trim, and what file do I get back?

Common containers like MP4, MOV, MKV, and WebM work. Because the streams are copied rather than converted, the output keeps the same codecs and container as your source — trim an MP4 and you get an MP4 back, with the same resolution and bitrate.

Is there a limit on how long or how large a video I can trim?

There's no hard cap, but since everything runs in your browser the practical ceiling is your device's memory. Short and medium clips trim almost instantly; very large 4K files or multi-gigabyte recordings can be slow or fail to load on low-RAM phones, so a desktop browser handles big files more reliably.

Will the audio stay in sync with the video after trimming?

Yes. Both the video and audio packets are copied from the same point in the timeline, so their relationship is preserved and the sound stays lined up with the picture — you won't get the audio drift that badly re-encoded cuts sometimes introduce.

Related tools