JPG vs PNG vs WebP vs HEIC: Which Image Format Should You Use?
Choosing an image format feels trivial until a website rejects your upload, an email recipient cannot open your HEIC photo, or a logo turns out fuzzy because it was saved as a JPG. Each format makes different trade-offs between quality, size, transparency and compatibility. Here is how to pick the right one.
JPG: the universal default for photos
JPG (or JPEG) uses lossy compression tuned for photographs, and virtually every device and browser can open it. It produces small files for complex, colorful images, which is why it remains the standard for photos on the web.
Its weaknesses are the lack of transparency and generational loss: every time you re-save a JPG, quality drops a little. It is a poor choice for sharp graphics, text or logos, where compression leaves visible artifacts.
PNG: lossless quality and transparency
PNG compresses without losing any data and supports full transparency, making it ideal for logos, icons, screenshots, diagrams and anything with text or sharp edges. Re-saving a PNG does not degrade it.
The trade-off is size. For photographs, a PNG is usually much larger than a JPG with no visible benefit, so reserve PNG for graphics rather than photos.
WebP: modern compression for the web
WebP was designed for the web and typically produces files 25 to 35 percent smaller than comparable JPG or PNG images, with support for both lossy and lossless modes plus transparency and animation. All major browsers now handle it.
The main limitation is outside the browser: some older desktop software and a few platforms still do not accept WebP, so keep a JPG or PNG fallback when compatibility is uncertain.
HEIC: efficient but not always compatible
HEIC is the default format on iPhones. It stores high-quality images at roughly half the size of JPG and supports advanced features like depth maps and live photos. On Apple devices it works seamlessly.
The problem is sharing. Many websites, Windows machines and older applications cannot open HEIC without extra software. If you need broad compatibility, convert HEIC to JPG before sending.
A quick decision guide
Use JPG for photographs that need maximum compatibility. Use PNG for logos, icons, screenshots and anything with transparency or text. Use WebP when you control the website and want the smallest files with modern browser support. Convert HEIC to JPG when the recipient might not be on an Apple device.
Whatever you choose, do conversions locally in the browser so your images are never uploaded just to change format, and you can batch-process many files without waiting on a server.
Related tool
There is no single best format, only the best format for the job. JPG for compatible photos, PNG for sharp graphics and transparency, WebP for an efficient modern website, and HEIC converted to JPG when you need to share beyond Apple devices. Match the format to the use case and convert locally to keep your images private.
Try the Image Converter →