Image Converter
Convert images between JPEG, PNG, and WebP formats entirely in your browser — no upload, no waiting, no account needed. Simply drop your image, pick a target format, and download the converted file in seconds.
How It Works
Image format conversion rewraps the pixel data from one container/encoding scheme into another. This tool uses the HTML5 Canvas API to decode your source image and then re-encode it as the format you choose.
JPEG (also called JPG) uses lossy compression — it discards fine detail to achieve small file sizes. It is ideal for photographs and complex scenes with many colours. JPEG does not support transparency; transparent areas will be filled with white.
PNG uses lossless compression. Every pixel is preserved exactly. PNG supports full alpha transparency (transparent backgrounds). It produces larger files than JPEG for photographs but is perfect for logos, screenshots, diagrams, and images with sharp edges.
WebP is a modern format developed by Google. It supports both lossy and lossless compression as well as transparency. WebP files are typically 25–35% smaller than JPEG at equivalent quality, and smaller than PNG too. All major modern browsers support WebP natively.
Worked example: You have a logo as a JPEG with an ugly white background. Convert it to PNG to get a transparent background (if the original had transparency; JPEG cannot store it, so you may need to use a background-removal tool first). Or you have a large PNG photo — convert to JPEG to reduce file size dramatically.
Worked example 2: You have an old BMP or GIF that you want to modernise. Drop it in, choose WebP, and download. The browser can decode virtually any common image format and re-encode it as your target format.
Frequently Asked Questions
Is my image uploaded to convert it?
No. Conversion is 100% client-side using the browser's Canvas API. Your image is never transmitted to any server. It works offline too.
Does converting to JPEG remove transparency?
Yes. JPEG does not support transparency. Any transparent areas in your source image will be filled with white in the JPEG output. To preserve transparency, convert to PNG or WebP instead.
What formats can I convert from?
Any format your browser can display: JPEG, PNG, WebP, GIF, AVIF, BMP, SVG, and more. The output format is your choice of JPEG, PNG, or WebP.
Will converting from JPEG to PNG improve quality?
No. Converting from a lossy format (JPEG) to a lossless one (PNG) does not recover lost detail — it just stores the existing pixels without further loss. You cannot restore information that JPEG already discarded.
Which format should I use for my website?
WebP is the best choice for most web images — it is smaller than both JPEG and PNG and supports transparency. Use PNG when you need full lossless quality or transparency with broad software compatibility. Use JPEG for photos shared with legacy software or email.