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X4Player

A desktop player built for watching multiple videos at once — view them side by side, synchronized or independent, with complete control over every frame.

Features

Flexible Multi-Video Layouts

  • Display up to 16 videos in a customizable 4 × 4 grid
  • Automatically place dropped videos, or position them precisely and split an area horizontally or vertically
  • Duplicate a panel with one click to compare different parts of the same video

Independent Controls for Every Video

  • Separate progress, volume, looping, and playback speed controls
  • A-B segment looping: drag the start and end markers to repeat only the section you need
  • Sync mode applies progress, volume, looping, and speed changes to every video instantly

Restore Setups in One Click

  • Save the current layout, videos, volume, selected segments, and progress as a preset
  • Search, rename, delete, and restore presets at any time from My Presets
  • Replace the current view or open a preset in a new window

Designed with Privacy in Mind

  • Private playback mode prevents opened videos from being added to the system's recent items
  • All data stays on your device and is never uploaded

Thoughtful Details

  • Restore the window to its previous position and size
  • Show controls on hover or keep them visible at all times
  • Automatically save preset changes on exit, or ask first
  • Press Space to pause or resume every video at once
Supports popular video formats
MP4MKVAVIMOV WMVFLVWebMM4V TSMPG3GPRMVB

User Guide

Play Multiple Videos at Once

Add a Split-Screen Area

Set the Maximum Number of Panels

Loop a Selected Segment

Create a Playback Preset

Play a Saved Preset

Independent and Sync Modes

Independent Mode

Set playback progress, volume, looping, and speed separately for each panel.

Sync Mode

Changes to progress, volume, looping, or speed in any panel are applied to every panel.

Preferences

Switch Language