Image Format Converter
Convert PNG, JPG and WebP images instantly in your browser. Adjust quality, preview both versions, and download — no upload needed.
Drop an image here, or click to browse
PNG, JPG, WebP supported
Upload an image above to get started. Everything runs in your browser — your images never leave your device.
Convert Images Between PNG, JPG, and WebP Instantly
Different situations call for different image formats. A photographer archiving work wants lossless PNG. A web developer optimising page load times needs WebP. A designer sharing a mockup with a client expects JPG. Switching between them used to mean opening desktop software, waiting for exports, and worrying about where your files ended up. This tool handles it in seconds — entirely inside your browser.
How to Convert an Image
Drop an image (PNG, JPG, or WebP) onto the upload zone, or click it to browse your files. The tool immediately converts it to the selected output format. Use the Output format dropdown to switch between PNG, JPG, and WebP at any time. Both the original and converted images are shown side-by-side with their file sizes, so you can see exactly what you're getting before downloading.
When to Use Each Format
- PNG — Best for screenshots, logos, icons, or any image where you need pixel-perfect quality and transparency support. Lossless, so no quality is ever discarded — but files tend to be larger than JPG or WebP.
- JPG — The standard for photographs and images with rich colour gradients. The quality slider lets you dial in the right balance of file size and visual fidelity. A setting of 85 is a good starting point: most people can't distinguish it from the original at that level.
- WebP — Google's modern format, supported by all current browsers. WebP delivers smaller files than both PNG and JPG at comparable quality. It also supports transparency, making it a strong all-round replacement. Use this for any image destined for the web.
Understanding the Quality Setting
The quality slider applies only to JPG and WebP, which use lossy compression: they discard image data to shrink the file. PNG compression is lossless — the slider is automatically disabled when PNG is selected. For JPG, values between 80 and 90 hit the sweet spot where the eye can't detect degradation but the file is much smaller than 100%. For WebP, even lower values like 75–80 often look excellent because WebP's codec is more efficient.
Privacy by Design
This converter runs entirely in your browser using the HTML5 Canvas API. When you drop a file, it is decoded locally, drawn onto an off-screen canvas, and re-encoded to the target format — all without leaving your machine. No image data is sent to any server. You can even use this tool after loading the page with your network disconnected.
Frequently Asked Questions
Which image formats can I convert between?↓
This tool supports PNG, JPG (JPEG), and WebP — the three most common raster formats on the web. You can convert in any direction: PNG to WebP, JPG to PNG, WebP to JPG, and so on.
What does the Quality slider do?↓
The Quality slider controls the compression level when converting to JPG or WebP, both of which use lossy compression. A value of 85–90% gives near-lossless results at a significantly smaller file size. PNG is always lossless, so the slider is disabled when you select PNG as the output format.
Why should I convert to WebP?↓
WebP typically produces files 25–35% smaller than equivalent JPG images and 25–50% smaller than PNG, at the same visual quality. Modern browsers (Chrome, Firefox, Safari, Edge) all support WebP, making it the best choice for web performance. If you need broad compatibility with older software, JPG or PNG may still be more appropriate.
Is my image uploaded to a server?↓
No. Conversion happens entirely inside your browser using the HTML5 Canvas API. Your image data never leaves your device — there is no upload, no server processing, and no storage of your files anywhere.
Why does converting a transparent PNG to JPG show a white background?↓
JPG does not support transparency (alpha channels). When you convert a transparent PNG to JPG, this tool fills the transparent areas with white before encoding. If you need to preserve transparency, choose WebP or PNG as your output format instead.