What is JPG and when should you use it?
JPG (JPEG) is the most widely supported image format in the world, designed for photographs and realistic images. It uses lossy compression to produce small files that open everywhere — browsers, phones, cameras, printers and every operating system. JPG does not support transparency, so transparent areas are flattened onto a solid background. This tool converts one image or a whole batch to JPG entirely in your browser, with an adjustable quality slider, and your files are never uploaded.
How Image to JPG works
How to convert an image to JPG
- Add your images. Drag and drop, or click Add Image(s) — one file or hundreds.
- Set quality and size. Pick a JPG quality (85–90% is ideal for photos) and an optional scale. The queue re-converts instantly as you adjust.
- Download. Save each JPG individually, or click Download All for a ZIP of the whole batch.
Single or bulk — one tool
Convert a single PNG to JPG to email it, or batch-convert hundreds of images at once. Each file appears as a card with a thumbnail and its before-and-after size, so you can see exactly how much space you save.
Why convert PNG or WebP to JPG?
JPG files are usually far smaller than PNG for photographs, and JPG is accepted by older software and services that may not read WebP or HEIC. It is the safest "works everywhere" choice for photos.
What happens to transparency?
JPG cannot store transparency, so any transparent pixels are filled with a white background during conversion. If you need to keep transparency, convert to PNG or WebP instead.
Is it private?
Yes — conversion runs in your browser using the canvas engine. Your images stay on your device and are never uploaded.
Common uses
- Convert PNG screenshots to smaller JPG files
- Bulk-convert a folder of images to JPG at once
- Make photos small enough to email or upload
- Turn WebP or HEIC images into universally-supported JPG
- Compress large photos with a quality slider
- Prepare JPGs for forms and portals that reject other formats
- Reduce storage used by photo libraries
- Create web-ready photo thumbnails