Premium Image Tools
Convert, compress, resize, and watermark images instantly. All processing is done in your browser for 100% privacy and blazing speed.
Change image formats with ease. Convert to PNG, JPG, WEBP, AVIF, PDF, and more. Batch conversion supported.
Drastically reduce JPG & WEBP file sizes with a live before/after preview and a target size feature.
Resize images by pixels or percentage. Maintain aspect ratio and use presets for social media.
Add a custom text or logo watermark to your images. Control position, size, and transparency.
Unlike other online image converters, ImgCon processes everything directly in your browser. This means your personal photos never leave your device. It is the most secure way to convert and compress images online, guaranteeing zero data breaches.
By utilizing advanced WebAssembly technology, ImgCon delivers desktop-class performance in a web app. Batch process hundreds of images in seconds without waiting for slow uploads.
ImgCon is a Progressive Web App (PWA). You can install it on your device and use it without an internet connection, entirely local and secure.
We support all modern formats. Convert your images to WebP and AVIF for superior compression, or stick to classic formats like JPG and PNG.
Sarah L.
Web Developer
"ImgCon is a lifesaver. I use it daily to optimize images for client websites. The fact that it's private and works offline is a huge plus."
Mike R.
Photographer
"I needed a quick way to convert raw photos to JPG for previews without uploading. ImgCon is incredibly fast and respects my privacy."
Jessica T.
Digital Marketer
"The batch processing feature is a game-changer. I can resize and compress dozens of images in seconds. Highly recommended!"
Learn more about image optimization and best practices.
Discover which format is best for your needs and how to choose wisely for web and print...
A practical guide to shrinking image file sizes to speed up your website and save space...
Learn about the next-gen image format from Google that offers superior compression and quality...
When it comes to saving images, two of the most popular file formats you'll encounter are PNG and JPG. While they may seem similar, they are fundamentally different and are best suited for different tasks.
JPGs are the most common file format for digital photos. They use lossy compression to make file sizes very small, which is great for loading websites quickly.
PNGs use lossless compression. Quality remains perfect, and it supports transparent backgrounds—ideal for logos and web design.
Large image files cause websites to load slowly. This guide will walk you through the best techniques for compressing image sizes cleanly.
ImgCon's Image Compressor allows you to find the sweet spot between size and quality. For web images, a quality setting of 75-85% is ideal.
Developed by Google, WebP provides superior lossless and lossy compression. On average, WebP images are 26% smaller compared to PNGs, and 25-34% smaller than JPGs, making websites load instantly.