Best Image Converters 2026

Frequently Asked Questions

How do I convert an image format for free?▾

Squoosh (by Google) converts and compresses images in the browser with real-time before/after quality comparison - free, fast, and privacy-preserving (processes locally). CloudConvert and Convertio handle more exotic format pairs. GIMP and Paint.NET are free desktop tools that open and export virtually any image format. For batch conversion, ImageMagick is the open-source command-line standard used by developers and automation workflows.

What is the difference between JPEG and PNG?▾

JPEG uses lossy compression - it discards some image data to reduce file size, making it ideal for photographs where small quality differences are not noticeable. PNG uses lossless compression - it preserves every pixel exactly, making it ideal for graphics with text, logos, and transparency. For photographs, use JPEG (or modern WebP). For graphics, screenshots with text, and images requiring transparency, use PNG.

What is WebP and should I convert my images to it?▾

WebP is Google's modern image format - roughly 25-35% smaller than JPEG and PNG at equivalent quality. All major browsers now support WebP. For web use, serving WebP instead of JPEG and PNG reduces page load times without visible quality loss. Squoosh, Cloudinary, and most modern image CDNs convert to WebP automatically. If your CMS supports WebP upload, converting images before upload is worthwhile for page performance.

What is the difference between JPG, PNG, and WEBP?▾

JPG uses lossy compression that discards some detail to achieve small files, making it ideal for photographs where the slight quality loss is unnoticeable, but it does not support transparency and degrades with repeated saves. PNG uses lossless compression, preserving every pixel and supporting transparency, which suits logos, graphics, screenshots, and images with sharp edges or text, at the cost of larger files. WEBP is a modern format that offers both lossy and lossless modes with smaller sizes than JPG or PNG at similar quality, designed for the web, though not every app supports it yet. Choose JPG for photos, PNG for graphics and transparency, and WEBP for efficient web images.

Does converting an image reduce its quality?▾

It can, depending on the formats involved. Converting to a lossy format like JPG applies compression that discards some detail, and converting a lossy image repeatedly compounds the loss each time. Converting to a lossless format like PNG does not add quality loss, though it cannot restore detail already lost in a previous lossy save. Converting between similar-quality formats generally preserves the image well. To minimize loss, convert from the original file rather than a previously converted copy, avoid unnecessary round-trips through lossy formats, and choose the target format based on the image type: lossless for graphics, lossy only where the size benefit is worth the minor quality trade.

How do I convert HEIC photos to JPG?▾

Use an image converter that supports HEIC, upload or select the photo, choose JPG as the output, and download the result. HEIC is Apple's efficient default photo format, and converting to JPG makes the image openable everywhere and acceptable to upload forms that reject HEIC. Many free online converters handle this, and Apple devices can often export or share photos as JPG directly through their settings or share options, avoiding a separate tool. For batches, a converter that processes multiple files at once saves time. As always, for sensitive photos prefer a tool that converts locally rather than uploading to a server.