Hello Product Hunt, I'm sharing FastConverter.app today, a suite of client-side image and PDF processing tools. The core motivation behind FastConverter was to build a set of performant, privacy-centric utilities that leverage modern browser capabilities. By processing files directly in the user's browser using JavaScript and technologies like the HTML5 Canvas API, we avoid server-side uploads and processing for the core operations. Key Technical Highlights & Features: Client-Side Processing: All core conversions (image formats like PNG, JPG, WEBP, HEIC, SVG; PDF to image), resizing, upscaling, and app icon generation occur directly in the browser. This minimizes latency and enhances user privacy as files don't transit to or get stored on a server. Core Technologies: HTML5 Canvas for image manipulation and rendering. JavaScript for core logic, DOM manipulation, and File API usage. JSZip for client-side creation of downloadable archives. Tooling Includes: Image Converters: PNG, JPG, WEBP, GIF, BMP, SVG, HEIC to standard web formats. PDF to Image: Client-side rendering of PDFs to JPG/PNG. Image Resizer & Upscaler. App Icon Generator. Performance & Privacy: The architecture prioritizes quick execution by eliminating network overhead for file processing and ensures user data remains local. Accessibility: The service is free and requires no registration. I hope you find FastConverter.app to be a useful and efficient set of tools. Thank you for taking the time to check it out.

FastConverter.app

Convert, Resize, Upscale Images In-Browser. No Uploads.

Convert, Resize, Upscale Images In-Browser. No Uploads.