About & Architecture
High-performance vector rasterization in the browser
Why We Built This
Most web-based image conversion tools force users to upload their graphics to remote servers, queue for processing, and risk exposing sensitive trademarks, client drafts, or personal illustrations.
We designed SVGtoPNG to demonstrate that modern web browsers equipped with Web Workers, OffscreenCanvas, and hardware-accelerated 2D rendering can convert SVG files locally in milliseconds, with zero server dependencies.
Technical Highlights
Astro Static Generation
Zero-JS by default for marketing content and instant page loads.
Web Worker Off-Thread Processing
Conversion takes place in a dedicated Web Worker thread with Transferable ArrayBuffer memory transfer, keeping the UI smooth and responsive.
Strict SVG Security Sanitization
Every uploaded SVG is thoroughly scrubbed of active scripts and event handlers before rendering to protect users against malicious files.