Local browser image processing
PNG to JPG Converter
Convert PNG images to JPG for free, with transparency flattened onto white. Fast, private, and processed entirely in your browser.
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JPG quality
Processed locally in your browserYour files never leave this device. No uploads. No registration. 100% private.
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Check it yourself: open DevTools (F12 or ⌘⌥I), pick the Network tab, tick Preserve log, then use the tool. Your file will not appear as an upload. Filter by Fetch/XHR to see requests the page made rather than assets it loaded.
Frequently Asked Questions
Will transparent PNG areas become black?
No. This converter fills the canvas white before JPEG export, so transparent areas become white.
Will PNG to JPG always reduce file size?
No. It often helps photographic PNGs, but simple or already optimized images can behave differently.
Does conversion change dimensions?
No. The decoded width and height stay the same.
Is JPG better for logos?
Usually not. PNG better preserves sharp edges and transparency. JPEG is generally better suited to photographs.
Can I convert the JPG back to the original PNG?
You can create a PNG later, but the original transparency and any detail lost during JPEG encoding will not return.