Fast Video Trimmer & Cutter

Local-first lossless fast video trimmer based on keyframe stream remuxing. Zero re-encoding, preserving original visual quality and audio sync with zero server upload.

Drop video file here or click to select

Supports MP4, MOV, WebM, and MKV files, 100% processed locally in browser

Files are not uploaded to MoxiKit servers for processingClient-side in-memory compute · Zero file uploads
Pure Client-Side Local Memory Processing · Zero Data Upload

Usage Guide

  • Upload your local MP4, MOV, or WebM video file.
  • Drag handles on the interactive timeline to mark start and end times, or enter exact timestamps and preview selection.
  • Click 'Trim Video' to remux locally and download your trimmed MP4 video.

Security & Privacy Guarantee

  • Utilizes Sample Copy stream remuxing without re-encoding, delivering maximum speed and lossless quality.
  • Start point automatically aligns to the nearest preceding keyframe (I-frame) to ensure clean decoding without blank frames.
  • Runs 100% inside your local browser memory. Files are never uploaded to any remote server, protecting your privacy.

Frequently Asked Questions

Q: Will trimming reduce my video quality?
A: No. MoxiKit uses container stream remuxing to copy original H.264/AAC packets directly without re-compression, preserving 100% of original visual and audio quality.
Q: Are my videos uploaded to a server?
A: Never. MoxiKit operates on a strict 100% Local-first architecture. All demuxing, keyframe alignment, and remuxing execute strictly within your local browser.