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

Quick answer: the right format for each job

Each format wins in a different situation. There is no single best option, only the best fit for a given image and destination.

• PNG: logos, icons, screenshots, line art, and any image needing transparency or razor-sharp text and edges. Lossless, so no quality is lost.
• JPG (JPEG): photographs and complex images with smooth color gradients, where a small file matters more than pixel-perfect detail. Lossy, no transparency.
• WebP: web images of almost any kind. Supports both lossy and lossless modes plus transparency, and usually produces the smallest file.

PNG: transparency and crisp detail

PNG uses lossless compression, so the saved file reproduces the original pixels exactly. That makes it ideal for graphics with hard edges, flat color, and text, such as logos, UI screenshots, and diagrams, where JPG artifacts would smear the edges.

PNG also supports a full alpha channel for transparency, so backgrounds can be see-through. The tradeoff is size: a PNG photo can be several times larger than the same photo as JPG, because lossless compression cannot discard the fine detail that photographs contain.

JPG: small files for photographs

JPG uses lossy compression tuned for photographs. It discards detail the human eye barely notices, shrinking files dramatically while keeping photos looking good. For a beach photo or a portrait, JPG is usually the practical choice.

The limits matter. JPG has no transparency, and its compression introduces visible blocky artifacts around sharp edges and text, so it is a poor fit for logos and screenshots. Every re-save loses a little more quality, so keep an original if you plan to edit repeatedly.

WebP: the modern web all-rounder

WebP is a newer format built for the web. It offers both lossy and lossless modes and supports transparency, so it can replace either PNG or JPG in many cases. At similar visual quality, WebP files are typically 25 to 35 percent smaller than JPG and often much smaller than PNG.

Smaller files mean faster page loads. Every current major browser supports WebP, so it is safe for websites. The main caveat is compatibility outside the browser: some older desktop apps, email clients, and tools still expect PNG or JPG, so convert to one of those when you need to share or print a file.

How to choose in 3 steps

Pick a format by answering three quick questions in order.

• Step 1: Does the image need transparency? If yes, rule out JPG. Choose PNG (lossless) or WebP (smaller).
• Step 2: Is it a photograph or a graphic? Photographs compress best as JPG or lossy WebP. Logos, icons, screenshots, and text-heavy graphics stay sharp as PNG or lossless WebP.
• Step 3: Where will it live? For a website, prefer WebP for the smallest size and fastest load. For sharing, printing, or older apps, use JPG (photos) or PNG (graphics) for guaranteed compatibility.

Convert between formats privately in your browser

Switching formats requires no account and no upload. The converter runs 100% in your browser: the image is processed locally on your device and is never sent to a server, so private photos and documents stay private.

To turn a transparent or oversized PNG into a smaller, universally compatible photo file, use the PNG to JPG converter at /convert/png-to-jpg. For the full set of image and PDF conversions, including building a PDF from your images, see all tools at /convert. It is free, with no signup, no watermark, and no daily limits.