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JPG vs PNG vs WebP — Which Image Format Should You Use?

You have a photo to save, a logo to export, or a screenshot to share. Which format do you choose? JPG, PNG, or WebP? Each has strengths and weaknesses, and picking the wrong one can make your file larger than necessary or reduce its quality.

This guide explains the three most common image formats in plain language. By the end, you will know exactly which format to use for every situation.

Quick answer

  • JPG — best for photographs. Small file size, no transparency.
  • PNG — best for logos, screenshots, and graphics. Larger file, supports transparency.
  • WebP — best for websites. Smallest file size, supports transparency, supported by all modern browsers.

What is JPG (or JPEG)?

JPG is the world's most common image format. It uses lossy compression, which means it deliberately discards some visual information to make the file smaller. At quality settings of 70–85%, the discarded information is barely noticeable to the human eye.

Pros of JPG

  • Very small file size for photographs
  • Universally supported — every device, browser, and app opens JPG files
  • Adjustable quality — you control the size/quality trade-off
  • Ideal for email attachments, websites, and social media

Cons of JPG

  • No transparency — transparent areas become white
  • Each re-save reduces quality slightly
  • Not ideal for sharp edges, text, or screenshots

When to use JPG

  • Photographs (camera or phone)
  • Website banners and hero images
  • Email attachments and social media posts
  • Any image where file size matters and transparency does not

What is PNG?

PNG uses lossless compression. It preserves every pixel exactly as it was, and it supports full transparency. This makes it perfect for graphics with sharp edges, text, and images that need to overlay other content.

Pros of PNG

  • Lossless — quality never degrades
  • Supports full transparency
  • Sharp edges stay sharp
  • Ideal for logos, icons, and screenshots

Cons of PNG

  • Larger file size than JPG for photographs
  • Not ideal for photos — JPG compresses them much better

When to use PNG

  • Logos and brand marks
  • Screenshots
  • Graphics with text or sharp lines
  • Any image that needs transparency

What is WebP?

WebP is a modern format developed by Google. It supports both lossy and lossless compression, as well as transparency. At the same visual quality, WebP files are typically 25–35% smaller than JPG or PNG.

Pros of WebP

  • Smallest file size for the same quality
  • Supports transparency (like PNG)
  • Supports animation (like GIF)
  • Supported by all modern browsers

Cons of WebP

  • Not supported by very old software (pre-2020)
  • Some desktop photo editors still do not open WebP natively

When to use WebP

  • Any image on a modern website
  • Product photos on e-commerce sites
  • Blog post images
  • Anywhere you want the smallest file size without visible quality loss

How to convert between formats

You do not need Photoshop or any paid software. Use the free Xmico Image Converter:

  1. Open the Image Converter.
  2. Upload your JPG, PNG, or WebP file.
  3. Choose your output format.
  4. Download the converted file.

Everything runs in your browser — no upload, no signup, no cost.

Common questions

Which format is best for websites?

WebP. It gives the smallest file size without visible quality loss, and it is supported by all modern browsers.

Which format is best for printing?

TIFF or PNG for maximum quality. JPG at high quality (90%+) is acceptable for most home printing.

Should I use PNG or JPG for screenshots?

PNG. Screenshots contain sharp text and edges, which JPG handles poorly.

Can I convert JPG to PNG without losing quality?

You can convert JPG to PNG, but the quality will not improve — the JPG's existing compression is already baked in.

Is WebP safe to use on my website?

Yes. WebP is supported by Chrome, Firefox, Safari, Edge, and all modern mobile browsers — over 98% of global traffic.

Summary

  • Photographs: JPG or WebP
  • Logos and graphics: PNG or WebP
  • Screenshots: PNG
  • Modern websites: WebP
  • Universal compatibility: JPG

Try the free Xmico Image Converter to convert between any of these formats in your browser.

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