ScreenChunk — Capture. Chunk. Share.

Capture your screen, chunk it into useful pieces, annotate, and share instantly. Fast screen capture made smarter.

🎬 ScreenChunk — HD Screen Capture, Studio FX & WASM Virtual Cam ScreenChunk is an ultra-fast, privacy-first Chrome extension and studio tool for HD screen recording, live whiteboard annotations, real-time video/audio FX, audio-reactive PNGtuber avatars, and WASM virtual camera streaming. ✨ KEY FEATURES 🎥 HD SCREEN RECORDING & CHUNKING • Capture full screens, application windows, or browser tabs in HD WebM. • Split long recordings into organized, shareable video clips. • Record system audio and microphone narration simultaneously. 🎨 LIVE WHITEBOARD ANNOTATIONS • Draw live vector annotations directly over your screen recording or stream. • Pen, Highlighter Marker, Eraser, custom color palettes, and line width pills. • Zero-lag performance burned straight into your video feed. 🤖 AUDIO-REACTIVE PNGTUBER AVATARS • Animate PNGtuber avatar states (Idle, Talking, Blinking) reacting to your microphone in real-time. • Built-in vector presets (Robot, Pixel Cat, Mascot) or upload your own custom PNGs. 🌌 PORTRAIT BLUR & VIRTUAL STUDIO • Gaussian background blur (1-20px) for clean, professional video. • Virtual Studio backdrop presets & Chroma Key green screen removal. • Ambient Person Focus Ring to highlight speaker presence. 🎛️ STUDIO VIDEO & AUDIO FX • Cinematic video color filters: Cyberpunk, Sepia, Noir, and Vignette. • WebAudio 3-Band Equalizer and Noise Gate for crisp, clear mic audio. 📹 WASM VIRTUAL CAMERA & VIRTUAL MIC • Stream screen crops and processed audio directly into Google Meet, Zoom, Teams, & WebRTC apps. • Pre-flipped selfie preview so text and graphics render right-side up. 🔒 WEBCRYPT E2EE SECURITY • Client-side AES-256-GCM encryption protects your recordings locally in browser memory. • Includes a standalone local decryption utility for password recovery. 🖥️ NATIVE SIDEPANEL & FLOATING TOOLBAR • Operate controls in Chrome's native SidePanel without cluttering your active tabs. • Unconstrained 60fps draggable whiteboard toolbar. 🛡️ 100% PRIVATE & LOCAL • 100% local browser processing powered by AssemblyScript WebAssembly. • Zero telemetry, zero external tracking scripts, and fully Manifest V3 compliant. ⚡ QUICK START: 1. Click the ScreenChunk icon to open the Chrome SidePanel. 2. Select your capture region, studio FX, or PNGtuber avatar. 3. Click "Start Rec" to capture, annotate, and share!