Mosaiplay turns any monitor into a fully customizable video wall. Pick your videos, choose a layout, and let it play. No streaming services, no internet connection, just your local video library, displayed however you want.

PLAY MULTIPLE VIDEOS AT ONCE

Arrange up to 36 videos in a grid and watch them all simultaneously*. Each tile plays independently with its own controls for volume, shuffle mode, and video fit. Choose from 8 built-in layout presets, including Single, Split, 2×2, 3-Column Portrait, Picture-in-Picture, or design your own grid with the visual layout editor.

ORGANIZE WITH COLLECTIONS & COMPOSITIONS

Import video folders as collections and assign them to tiles. Save your entire setup, layout, collections, volumes, widgets, and shuffle modes as a composition and restore it in one click. Use Auto-start so Mosaiplay picks up right where you left off in the last session.

6 SHUFFLE MODES & TRANSITIONS

Go beyond basic shuffle. Choose from Sequential, Shuffle All, Shuffle Videos Only, Shuffle Collections Only, Repeat One, or Repeat Collection — and set different modes per tile. Pick from 6 transition effects (Fade, Slide, Zoom, Blur Fade, and more) with adjustable timing.

NOT JUST VIDEO, ADD WIDGETS

Mix utility tiles into your wall alongside videos:

- Clock with 12/24h format, timezone support, stopwatch, and countdown timer

- Text Notes for reminders, labels, or annotations

- RSS Feed Reader with auto-scroll and configurable refresh

Each widget supports independent font scaling and per-tile color themes.

DECOY BUTTON

Press B to instantly hide everything behind a decoy screen — a fake spreadsheet, a fake desktop, or your own custom image. Press B again to resume exactly where you left off.

PLAYS ALMOST ANYTHING

MP4, WebM, MKV, AVI, MOV, WMV, FLV — Mosaiplay handles all major video formats out of the box. Many incompatible files are automatically converted via bundled FFmpeg: no codec packs, no extra downloads.

BUILT FOR EVERYONE

- 3 color themes (Dark, Light, High Contrast)

- Color blindness filters (Protanopia, Deuteranopia, Tritanopia)

- OpenDyslexic font toggle

- UI scale from 0.5× to 3.0×

- 9 languages: English, Chinese (Simplified), Japanese, Korean, Russian, Spanish, Portuguese, German, French

- Fully rebindable keyboard shortcuts

WORKS OFFLINE. STAYS ON. KEEPS PLAYING.

No internet required for any feature (technically, you can have a local RSS feed ^_^). Mosaiplay prevents display sleep, so your video wall stays running, continues playback in the background, and auto-saves everything, layouts, playlists, compositions, and settings, so nothing is ever lost**.

The videos shown in screenshots are for demonstration only and are not included with the application. Mosaiplay plays your own local video files.

*The number of streams that can be played depends on your hardware.

**Mosaiplay Team not responsible for lost data.