I'm the maker of FormatZen, and I wanted to share why I built this. It started with a frustration I kept running into: needing to convert a simple image — JPG to PNG, PNG to WEBP, whatever — and every tool I found either uploaded my files to some random server, nagged me to sign up, slapped a waterwall in front of the download, or took longer to load than the actual task. For something this simple, that felt completely broken. The problem isn't just inconvenience. It's trust. When you drag a screenshot, a product photo, or a personal image into a random converter, you genuinely don't know where it goes. Most tools are free because your files are the product. So I asked a simple question: what if the converter never touched your files at all? FormatZen runs 100% inside your browser. No uploads. No server. No account. Your images never leave your device — not even for a millisecond. From there I kept adding the tools I actually needed alongside conversion — batch processing, resize, filters, watermarking, image-to-PDF — all with the same principle: free, private, no friction. It's not trying to be everything. It's trying to do a few things really well, really fast, without asking anything of you in return. Would love your feedback — especially on what formats or tools you'd want next. Happy to answer anything 🙏

FormatZen

JPG to JPEG Converter — free online

JPG to JPEG Converter — free online

Forum Threads

Free Image Conversion

Forum Threads

Free Image Conversion