compresso — Offline Batch Video & Image Compression
Free, open-source, fully offline desktop compression powered by FFmpeg, pngquant, jpegoptim, and gifski.
CompressO is a cross-platform desktop app (Tauri + React/Vite) for compressing, trimming, converting, and enriching video and image files — entirely on your local machine with no external calls.
Installation
Plugin (Claude Code)
claude plugin marketplace add codeforreal1/compressOHomebrew (macOS)
brew install --cask codeforreal1/tap/compressoInstaller (all platforms)
Download from github.com/codeforreal1/compressO/releases:
| Platform | Installer |
|---|---|
| Debian/Ubuntu | CompressO_amd64.deb |
| Universal Linux | CompressO_amd64.AppImage |
| Apple Silicon | CompressO_aarch64.dmg |
| Intel Mac | CompressO_x64.dmg |
| Windows 64-bit | CompressO_x64.msi |
Skill (any platform)
npx skills add https://github.com/akillness/oh-my-skills --skill compressoWhen to use
- Compress a single video or batch of videos without uploading to a third-party service
- Reduce image file sizes (PNG → pngquant, JPEG → jpegoptim, GIF → gifski)
- Trim or split video content without a full video editor
- Convert between video/image formats via the FFmpeg pipeline
- Embed subtitles into video files locally
- Manage file metadata (title, author, date) during compression
Do not use when
- You need cloud-based transcoding or CDN delivery → route to a managed video service
- You need programmatic FFmpeg scripting in CI/CD → call
ffmpegCLI directly - You need advanced NLE editing (multi-track, color grading) → route to a full video editor
- You need streaming video packaging (HLS, DASH) → route to a dedicated packaging tool
Key features
| Feature | Detail |
|---|---|
| Batch compression | Process multiple video and image files simultaneously |
| Video trimming | Trim start/end or split video into segments |
| Format conversion | Convert between common video and image formats |
| Metadata management | Update title, author, date metadata during compression |
| Subtitle embedding | Embed SRT/ASS subtitles into video files |
| Advanced config | Fine-grained video codec, bitrate, and audio settings |
| 100% offline | No network calls; all processing is local |
| Cross-platform | Linux, macOS, Windows via Tauri |
Technology stack
| Layer | Tech |
|---|---|
| Desktop shell | Tauri (Rust) |
| Frontend | React + Vite |
| Video compression | FFmpeg |
| PNG compression | pngquant |
| JPEG compression | jpegoptim |
| GIF compression | gifski |
Build from source
Prerequisites: Rust toolchain + Node.js + pnpm
git clone https://github.com/codeforreal1/compressO.git
cd compressO
pnpm install
# Development
pnpm tauri:dev # full Tauri + React dev mode
pnpm vite:dev # frontend only
# Production build
pnpm tauri:build # output: src-tauri/target/release/bundle/Operating rules
- Always prefer a pre-built installer for end-user machines; build from source only when the user needs a custom Tauri/Rust configuration
- Confirm FFmpeg, pngquant, jpegoptim, and gifski are available on the system PATH before CLI-based compression workflows
- Use batch mode for ≥ 3 files to avoid per-file startup overhead
- Route subtitle embedding through CompressO's built-in flow rather than raw
ffmpeg -vf subtitles=…for consistent output naming - Check the releases page for the latest DMG/MSI/AppImage before building from source
Examples
# macOS install
brew install --cask codeforreal1/tap/compresso
# Linux install (AppImage)
chmod +x CompressO_amd64.AppImage && ./CompressO_amd64.AppImage
# Build from source (all platforms)
git clone https://github.com/codeforreal1/compressO.git
cd compressO && pnpm install && pnpm tauri:buildSource: codeforreal1/compressO — AGPL-3.0 License