What is the difference between lossless and precise mode?

Lossless mode copies the video stream without re-encoding — it finishes in seconds with zero quality loss, but cuts land on the nearest keyframe (typically within a second or two). Precise mode re-encodes, which takes longer but cuts on the exact frame you chose.

Is there a watermark or file size limit?

Never a watermark, never an account. There is no fixed size limit — capacity depends on your device's memory. Files over 2 GB get a gentle heads-up but are not blocked.

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Trim Video

Drag the handles, preview the cut, download. Lossless mode finishes in seconds with zero quality loss — something upload-based sites can't touch.

Your video never leaves your device

Drop your video here

MP4, WebM, MOV, MKV, AVI — or click to browse. Work starts instantly: there's no upload.

drop works anywhere on this page

How to trim a video online — without uploading it

Drop your video anywhere on this page. It opens instantly — there's no upload bar because there's no upload.
Set your in and out points — drag the violet handles on the thumbnail timeline, press I/O at the playhead, or type exact times. Handles snap magnetically to the playhead and to one-second gridlines.
Pick a mode and export. Lossless finishes in seconds; precise re-encodes for exact frames.

Lossless vs. precise — the tradeoff nobody else explains

Video files are compressed in groups of frames anchored by keyframes. Lossless mode (stream copy) slices the file at keyframe boundaries without touching the compressed data: it's near-instant even for gigabyte files and the quality is bit-for-bit identical, but your cut lands on the nearest keyframe — typically within a second or two of where you aimed. Precise mode decodes and re-encodes the selection, so the cut lands on the exact frame, at the cost of processing time and one generation of (visually negligible) re-compression. Quick social clip? Lossless. Exact dialogue cut? Precise.

Why on-device beats uploading

Upload-based trimmers make a 500 MB phone video crawl through your connection before work even starts, then cap your file size and stamp a watermark unless you pay. Here the file never moves: a one-hour recording opens in about a second, and lossless trims of huge files finish before a competitor's upload bar would reach 5%.

FAQ

What's the difference between lossless and precise mode?

Lossless copies the stream without re-encoding — seconds fast, zero quality loss, cuts snap to the nearest keyframe. Precise re-encodes for exact-frame cuts at the cost of time.

Is my video uploaded to a server?

No. Everything runs in your browser via WebAssembly. The file is read into memory on your device, trimmed there, and saved back. Nothing is transmitted.

Is there a watermark or size limit?

Never a watermark, never an account. No fixed size limit — it depends on your device's memory; over 2 GB you get a heads-up, not a block.

Which formats can I trim?

MP4, WebM, MOV, MKV, AVI and most other containers. Lossless keeps the original container; precise outputs H.264 MP4 that plays everywhere, including iPhones.