Image Converter
Convert and compress images between JPG, PNG, and WebP right in your browser, without uploading the file to a server. It is built for the moment you need a smaller or differently-formatted image and do not want to install software or sign up anywhere.
Image Converter
Convert, resize & compress in seconds
Click to upload images
Supports JPG · PNG · WEBP · AVIF · BMP
Why format and compression actually matter
A photo straight off a phone is often 4-8 MB and saved as a high-bit-depth JPG or HEIC. That is fine for storage but wrong for the web, where every extra megabyte slows the page and costs the visitor bandwidth. Converting to WebP typically cuts the file by 25-50% at the same visible quality, which is why most modern sites serve WebP.
Format also decides what the image can do. PNG keeps a transparent background and crisp edges, so it is right for logos and screenshots. JPG has no transparency but compresses photographs efficiently. WebP does both. Picking the wrong one either bloats the file or loses the transparency you needed.
How to get a clean result
Start from the highest-quality source you have, because each re-save of a JPG throws away a little more detail. Convert once to your target format rather than chaining conversions.
- For photos going on a website, choose WebP at 75-85% quality. The difference from 100% is almost invisible but the file is far smaller.
- For anything with text, sharp lines, or transparency, keep PNG.
- If a portal only accepts JPG or PNG, convert to that format last so you do not fight an upload filter.
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FAQs
Are my images uploaded to a server?▼
No. The conversion runs in your browser using the Canvas API, so the image data never leaves your device. That is why it works offline once the page has loaded and is safe for private or unreleased images.
Why is my WebP file not much smaller than the JPG?▼
If the source JPG was already heavily compressed, there is little left to remove, so WebP gains less. The biggest savings come from converting a large, high-quality original. Lowering the quality slider also helps, but watch for visible artifacts below about 60%.
Will converting to WebP lose quality?▼
WebP is a lossy format at most quality levels, so some data is discarded, but at 75-85% the loss is generally not visible to the eye. If you need a perfect pixel copy, use lossless PNG instead.
Can I convert a transparent PNG to JPG?▼
You can, but JPG does not support transparency, so the transparent areas will be filled (usually with white or black). If you need to keep transparency, convert to WebP or keep the PNG.
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