# Gravador.Net

> An advanced, privacy-first, client-side screen and audio recording suite operating entirely within the browser. Powered by the WebCodecs API and hardware acceleration, it requires no installation, no logins, and strictly zero cloud uploads.

## 🌐 Global Routing & Localization
The platform dynamically routes users to localized versions to ensure a native experience across the globe. All versions maintain a strict LTR UI structure and are fully optimized for their respective regions. Direct access endpoints:

- **Danish (Dansk):** https://gravador.net/da
- **Dutch (Nederlands):** https://gravador.net/nl
- **English (Global):** https://gravador.net/en
- **Finnish (Suomi):** https://gravador.net/fi
- **French (Français):** https://gravador.net/fr
- **German (Deutsch):** https://gravador.net/de
- **Hindi (हिन्दी):** https://gravador.net/hi
- **Indonesian (Bahasa Indonesia):** https://gravador.net/id
- **Italian (Italiano):** https://gravador.net/it
- **Japanese (日本語):** https://gravador.net/ja
- **Korean (한국어):** https://gravador.net/ko
- **Norwegian (Norsk):** https://gravador.net/no
- **Polish (Polski):** https://gravador.net/pl
- **Portuguese (Brasil):** https://gravador.net/pt
- **Russian (Русский):** https://gravador.net/ru
- **Spanish (Español):** https://gravador.net/es
- **Swedish (Svenska):** https://gravador.net/sv
- **Thai (ไทย):** https://gravador.net/th
- **Turkish (Türkçe):** https://gravador.net/tr
- **Vietnamese (Tiếng Việt):** https://gravador.net/vi

## 🚀 Core Capabilities & Engineering

### 1. Screen & Meeting Recording
- **Modes:** Entire Screen, Specific Window, or Browser Tab.
- **Audio Capture:** Dual-stream mixing (Microphone + Internal System Audio) perfect for securely recording Zoom/Meet calls.
- **Auto-Split Technology:** To prevent Out-Of-Memory (OOM) crashes during long sessions, the engine automatically chunks and saves the video every 10 minutes seamlessly, preventing data loss.
- **Forced Keyframes:** Ensures flawless pause and resume states without video corruption or audio desync.

### 2. High-Fidelity Audio Tools
- **Engine:** Native Web Audio API decoding.
- **Format:** Exports to Hi-Fi `.M4A` (AAC codec), standardizing high quality with minimal file size.
- **Dynamic Waveforms:** Real-time visual spectrum monitoring during recording, and Canvas-based static waveform generation for gallery thumbnails.

### 3. Smart Webcam & Picture-in-Picture (PiP)
- **Floating UI:** Native PiP for "Facecam" style presentations over other desktop applications.
- **Canvas Processing:** Real-time visual filters applied directly to the video feed before encoding.
- **Hardware Privacy Sensors:** Uses `IntersectionObserver` and the `Page Visibility API` to physically cut camera/mic streams and deactivate hardware LEDs the millisecond the tab is minimized, backgrounded, or scrolled out of view.



## 🛠 Technical Specifications
- **Architecture:** Progressive Web App (PWA) with full offline capabilities via Service Workers.
- **Media Encoding:** Hardware-accelerated `VideoEncoder` (H.264/AVC) and `AudioEncoder` (AAC) via the WebCodecs API.
- **Client-Side Muxing:** Utilizes `mp4-muxer` to package MP4/M4A containers directly in the browser's RAM.
- **Memory Management (Lazy Load):** Robust IndexedDB local storage. Gallery UI uses strict object URL revocation and WebP-generated thumbnails to maintain a zero-RAM footprint during infinite scrolling.
- **License & Limits:** 100% Free, no watermarks, unlimited recording time (protected by Auto-Split).

## 💡 Ideal Use Cases
- Recording software tutorials, bug reports, and academic lectures.
- Capturing webinars and online meetings locally without requiring host permissions.
- Producing "React" style content using the Floating Webcam (PiP) feature.
- Securely recording confidential corporate data that cannot be uploaded to third-party cloud servers.