Free JPEG XL Converter — convert to & from JXL in your browser

⚡ Free in-browser converter Convert images to and from JPEG XL (.jxl) right in your browser. Your files never leave your device. 🔒 100% private 🚫 No sign-up ♾ No limits 💧 No watermark 💸 Free Drop your images here JPG, PNG, WebP, HEIC, GIF or .jxl — converted instantly on your device Select images 🔒 100% in your browser — your files are never uploaded Convert to Quality90 Lossless What is JPEG XL? JPEG XL (.jxl) is the modern successor to the classic JPEG. It produces noticeably smaller files at the same — or better — quality than JPEG, PNG and WebP, and it can shrink existing JPEGs by about 20% with no quality loss at all. 📦Smaller filesKeep the same visual quality while cutting file size, so pages load faster and storage goes further. 🎞One format, everythingLossless and lossy, photos and graphics, transparency and animation — all in a single modern format. 🔁Lossless from JPEGRe-pack your existing JPEGs to JPEG XL and recover ~20% of their size without touching quality. Want the longer answer — where the format came from, what it does that JPEG and WebP can't, and whether you should be using it yet? Read what JPEG XL is, or compare it head to head with WebP. Everything else we've written lives in the guides. How to convert to JPEG XL No software to install, no account, no upload. Three steps, all on your device. Drop your imagesDrag in one or many JPG, PNG, WebP or GIF files — or click to pick them. Pick qualityChoose Auto, set a quality level, or tick Lossless for a perfect copy. DownloadGet your .jxl files instantly, with the size saved shown for each image. Why this converter Most online converters upload your photos to their servers and cap how much you can do for free. This one doesn't. FeatureJXL ConvertTypical online tools Files processed on your deviceYesUploaded to a server Sign-up requiredNeverOften Daily / size limitsNoneCommon WatermarkNoneSometimes PriceFreeFree tier + paywall Frequently asked questions Is it really free?Yes — completely free, with no sign-up, no daily limits and no watermark. Are my images uploaded anywhere?No. Every conversion runs locally in your browser using WebAssembly. Your files never leave your device, so it's safe even for private documents and photos. Can I convert a .jxl back to JPG or PNG?Yes. The tool works both ways: turn images into JPEG XL, or open a .jxl file and convert it back to PNG or JPG. Why can't my browser open .jxl files yet?Safari supports JPEG XL, and Chrome 145 brought the decoder back in 2026 — but Chrome still keeps it off by default. Until that changes, converting .jxl back to PNG/JPG here lets you view and share them anywhere. Does it work on my phone?Yes. It runs in any modern browser on desktop, Android and iOS.