Slop Screen Recorder
Minimalistic cross-platform screen recorder built with Tauri v2, SvelteKit, and Rust
Slop Screen Recorder
Minimalistic cross-platform screen recorder built with Tauri v2, SvelteKit, and Rust.
Wraps FFmpeg with a clean native UI — select a source, hit record, get an MP4. No bloat, no accounts, no cloud.
Features
- Cross-platform — macOS, Windows, and Linux
- Window capture — record a specific window or the full desktop (Windows enumerates visible windows via Win32 API)
- Region capture — record a fixed-resolution region in landscape, portrait, or square (480p up to 4K) anchored to a corner or the center of the screen
- Hardware-accelerated encoding — H.264 via VideoToolbox (macOS), with fallback to libx264
- Audio capture — optional microphone recording
- Configurable — choose source, FPS (15/24/25/30/60), and output directory
- Global hotkey —
Ctrl+Shift+Rto start/stop recording from anywhere - Minimize on record — optionally minimize the recorder window while recording
- Tiny footprint — native Tauri app, no Electron/Chromium bundle
Prerequisites
Release builds bundle FFmpeg — no separate install needed. For development, you'll need FFmpeg on your PATH:
Installing FFmpeg for development
macOS: brew install ffmpeg
Windows: choco install ffmpeg or download from ffmpeg.org and add to PATH
Linux: sudo apt install ffmpeg
Getting Started
# install dependencies
npm install
# run in development mode
npm run tauri dev
# build for production
npm run tauri build
Scripts
| Command | Description |
|---|---|
npm run tauri dev |
Start the app in development mode with hot reload |
npm run tauri build |
Build a production binary/installer |
npm test |
Run all checks (format + lint + type check + clippy + rust tests) |
npm run format |
Format all files with Prettier |
npm run format:check |
Check formatting without writing changes |
npm run lint |
Run ESLint |
npm run lint:fix |
Run ESLint with auto-fix |
npm run check |
Run svelte-check (TypeScript + Svelte type checking) |
npm run test:rust |
Run cargo clippy and cargo test |
Project Structure
slop-screen-recorder/
├── src/ # SvelteKit frontend
│ └── routes/
│ └── +page.svelte # Main recording UI
├── src-tauri/ # Tauri + Rust backend
│ └── src/
│ ├── lib.rs # Tauri app setup and command registration
│ └── recorder.rs # FFmpeg process management and platform logic
├── eslint.config.js # ESLint config (Svelte + TypeScript)
├── svelte.config.js # SvelteKit config (static adapter for SPA)
└── package.json
How It Works
The Rust backend spawns FFmpeg as a child process with platform-specific capture arguments:
| Platform | Capture | Encoder |
|---|---|---|
| macOS | avfoundation |
h264_videotoolbox (hardware) |
| Windows | gdigrab |
libx264 |
| Linux | x11grab |
libx264 |
Recording starts by sending the appropriate FFmpeg command and stops by writing q to stdin for a graceful shutdown that finalizes the MP4 file.
Tech Stack
- Tauri v2 — native desktop runtime
- SvelteKit — frontend framework (static SPA mode)
- Rust — backend logic
- FFmpeg — screen capture and video encoding
License
