DemoStudio

Product Introduction

1. DemoStudio is a browser-based screen recording and video editing platform that enables users to record or upload screen captures, apply dynamic zoom effects, customize backgrounds, and export polished videos in resolutions up to 4k without software installation. It operates entirely within modern web browsers, offering professional-grade editing tools accessible through an intuitive interface.
2. The core value of DemoStudio lies in democratizing high-quality video production by eliminating cost barriers and technical complexity. It provides creators with a zero-cost solution for producing studio-grade demos, tutorials, and presentations while maintaining full control over visual branding and output specifications.

Main Features

1. Zoom In to Highlight automatically tracks cursor movements or allows manual placement of zoom keyframes to emphasize specific interface elements during screen recordings. Users can adjust zoom duration, transition smoothness, and magnification levels through precision controls in the timeline editor.
2. Borders & Shadows applies customizable frame decorations with adjustable thickness, color opacity, and corner radius settings. This feature supports real-time previews of drop shadow intensity and directional lighting effects to match professional design standards.
3. Custom Backgrounds accepts uploaded images (PNG/JPG/SVG), solid color fills, or CSS-compliant gradient codes to create branded environments. Background layers can be resized independently of screen recording dimensions using parametric positioning controls.
4. Generate your own background integrates with OpenRouter API keys to produce AI-generated images from text prompts, with all API credentials stored locally in browser storage. Users retain full ownership of generated assets, which can be saved as reusable templates.
5. Perfect Aspect Ratios enables resolution-independent exports by decoupling canvas size from source material, allowing 1:1 square videos for social media or 21:9 cinematic formats. The rendering engine uses Lanczos resampling for sharp 4k outputs at 60fps.

Problems Solved

1. Eliminates the need for multiple paid software licenses (screen recorders, video editors, graphic tools) by providing unified browser-based editing with frame-accurate precision.
2. Serves content creators, SaaS companies, and remote teams requiring branded product demos without dedicated production resources.
3. Addresses platform-specific formatting challenges by enabling instant conversion between aspect ratios required for YouTube (16:9), Instagram (9:16), and documentation portals (custom resolutions).

Unique Advantages

1. Unlike desktop-based alternatives, DemoStudio requires no installation, updates, or platform-specific builds, with all processing handled client-side through WebAssembly and WebGL acceleration.
2. The OpenRouter API integration uniquely allows AI background generation without third-party data sharing, as API keys never leave the user's device and are encrypted in IndexedDB storage.
3. Competitively outperforms cloud-based editors through unrestricted 4k exports at 50Mbps bitrate without watermarks or subscription requirements, leveraging modern browser codecs like VP9 and AV1.

Frequently Asked Questions (FAQ)

1. Does 4k export require payment or account creation? All resolution options including 3840x2160 are available without registration or fees, using client-side rendering to avoid server costs. Exported files contain no watermarks or usage restrictions.
2. What browsers support all editing features? Chrome 98+, Firefox 96+, and Edge 101+ with WebAssembly 2.0 support can fully utilize zoom keyframing, background generation, and 4k exports. Safari requires macOS 12.3+ for optimal performance.
3. How are OpenRouter API keys secured? Keys are encrypted using the Web Cryptography API and stored exclusively in your browser's local storage, never transmitted to DemoStudio servers or third parties. Users must manually enter keys per session.
4. Can I edit recordings after initial export? Original project files remain editable in your browser cache until explicitly deleted, allowing unlimited revisions with non-destructive editing preserving source quality.
5. What input formats does the screen recorder support? The browser extension captures lossless VP8 video at 30fps by default, while the upload function accepts MP4, MOV, and WEBM files up to 4GB in size.