JPG → PNG

This free online JPG to PNG converter does the one conversion people search for most specifically — turning a JPG straight into a lossless PNG — and adds a feature a plain format converter doesn't have: a one-click background punch-out that can turn a JPG with a plain background into a PNG with real transparency, right in the same step. Batch-convert as many JPGs as you need at once, each with its own live preview and size readout.

PNG is the format to reach for whenever a JPG isn't good enough anymore: it applies no lossy compression, so text, logos, screenshots and line art stay perfectly sharp instead of picking up the soft blur and blocky artifacts JPG compression introduces — especially after a file has been re-saved as JPG more than once, a common source of visibly degraded images. It's also the format most design tools, favicon generators and print workflows expect when quality matters more than file size.

The background-transparency feature is the part a generic converter skips entirely: since JPG has no alpha channel, a plain "convert to PNG" just produces an opaque PNG with a solid background baked in — the same background you started with, still fully visible. This tool goes a step further with a soft chroma-key: turn on "Make a background color transparent," pick the color to remove (there are one-click swatches for white, black and green-screen), and every pixel close to that color fades to transparent with a smooth, feathered edge instead of a jagged cutout. It's not a substitute for the AI-powered Background Remover on photos with complex backgrounds, but for a product shot on a plain white backdrop, a scanned logo, or a screenshot with a solid fill, it turns a flat JPG into a ready-to-use transparent PNG in seconds, with a tolerance slider to dial in exactly how aggressively similar shades get removed.

Every conversion and every pixel of the chroma-key runs locally in your browser using the HTML canvas API — nothing is ever uploaded to a server, so it's instant, works the same on a phone as a laptop, and is completely private.