Smoosh app icon

Drop it. Smoosh it.

A tiny macOS app that compresses images to WebP and optimizes video to MP4 or WebM. Drag, drop, done.

1.9 MB
App size
0
Dependencies
< 8 MB
RAM usage
Download for macOS

macOS 13+ / Apple Silicon / Signed & Notarized

Coming soon to the Mac App Store
What it does
Image to WebP

Drop PNG, JPEG, TIFF, BMP, GIF, or HEIC files. Get optimized WebP output with visually lossless compression.

Default: 80% quality
Video to MP4

Downspec oversized video to sane dimensions with H.264 encoding. Ideal for web, ads, and IFE content.

Default: 1920px / 30fps / 2.0 Mbps
Video to WebM

VP9 encoding with a built-in WebM muxer. Open format, excellent compression, no ffmpeg required.

Default: 1920px / 30fps / 2.0 Mbps
How it works
Drop your files

Drag images or videos onto the app window or the Dock icon. Handles single files or batches.

Sensible defaults apply

Files convert immediately with production-tested settings. Adjust quality, resolution, or bitrate if needed.

Compressed files appear

Output saves next to the original (or a folder you choose). See file size reduction at a glance.

Sensible defaults
Setting Default Description
WebP quality 80% Visually lossless for most images. Adjustable 1-100.
Max width 1920px Scales down proportionally. Keeps aspect ratio.
Frame rate 30 fps Standard for web and display content.
Bitrate 2.0 Mbps Good quality at a fraction of the file size.
Output format MP4 (H.264) Switchable to WebM (VP9) in settings.
Output location Same as source Or choose a custom folder.
Apple notarized
Developer ID signed
No dependencies
Native Swift + C