Image Format Converter
Convert instantly between WebP, PNG, and JPEG. Fast, lossless (for PNG/WebP), and completely client-side.
Drag & drop an image here
Supports PNG, JPEG, WebP, GIF, and more.
What is an Image Format Converter?
An image format converter changes images from one file format to another — for example, converting PNG to JPG, JPG to WebP, or WebP to PNG. Different formats have different strengths: JPEG is best for photographs (small file size with lossy compression), PNG supports transparency and lossless compression, and WebP offers superior compression for both lossy and lossless images. Our free online image converter processes everything in your browser using the Canvas API, so your images are never uploaded to any server.
How to Convert Images Between PNG, JPG, and WebP
- 1Upload your image
Drag and drop or select an image file in any supported format (PNG, JPG, WebP, BMP, GIF).
- 2Select output format
Choose the target format: PNG, JPEG, or WebP.
- 3Adjust quality
For JPEG and WebP, adjust the quality slider to balance file size and image quality.
- 4Download converted image
Click "Download" to save the converted image to your device.
Frequently Asked Questions
Which format should I choose?
Use JPEG for photographs and images where small file size matters. Use PNG when you need transparency or lossless quality. Use WebP for the best compression — it produces 25-34% smaller files than JPEG at equivalent quality.
Is quality lost during conversion?
Converting to PNG is always lossless. Converting to JPEG or WebP involves lossy compression, so some quality reduction occurs. You can control this with the quality slider.
Are my images uploaded to a server?
No. All image processing happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device.
What is WebP?
WebP is a modern image format developed by Google that provides superior lossless and lossy compression for images on the web. It supports transparency (like PNG) and animation (like GIF) while producing significantly smaller files than JPEG or PNG.
Why Use DevDeck?
Most online image converters upload your photos to their servers for processing. DevDeck converts everything locally in your browser — your personal photos, screenshots, and design assets stay completely private.