PNG to JPG converter
Turn large PNG photos and screenshots into JPGs that are often 5–10× smaller. Converted in seconds.
Drop images or folders hereAdd your images
JPG, PNG, WebP, AVIF, HEIC and GIF, up to 100 MB each
How it works
Convert in three steps
- 1
Drop your PNG images in, or choose them from your device.
- 2
Graviton converts them to JPG right in your browser.
- 3
Download each JPG or a ZIP: 3 a day on Free, unlimited on Pro.
Why convert PNG to JPG?
PNG is lossless and supports transparency, which suits screenshots and graphics but makes photos large. JPG opens everywhere and suits photos, but it has no transparency.
What happens to quality?
Images are converted at high JPG quality (85). Transparent areas become white, because JPG has no transparency.
Frequently asked questions
Should I convert screenshots to JPG?
For screenshots with text, PNG often stays sharper. Try “Compress PNG” first: it keeps the PNG format and usually removes 60–80% of the size.
Are my images uploaded?
No. Graviton converts and compresses inside your browser, so your images never leave your device. Nothing is sent while you compress. When you download, the browser sends only a one-way fingerprint of the image, so the download can be counted and approved. Graviton stores none of it.
Can I process many images at once?
Yes. Drop up to 250 images at once and they are compressed together. Download them one by one or as a ZIP that keeps the original file names: 3 a day on Free, unlimited on Pro. On Free, each image counts once a day.
Is it free?
Yes. Compressing and converting are free and unlimited, with no account needed. Downloading needs a free account, which includes 3 downloads a day with every format and setting. Pro removes the daily limit.