Will converting JPG to PNG improve the image quality?

No. JPEG compression is lossy and irreversible. The artefacts already in the JPG are preserved in the PNG output. PNG prevents any further quality loss, but it cannot restore what JPEG already discarded.

Why is the PNG output larger than the original JPG?

PNG is lossless and does not discard pixel data, so it typically produces larger files than JPEG for photographic content. This is expected and correct behaviour.

Does the output PNG support transparency?

JPG has no transparency channel, so the output PNG will have no transparent areas. If you need a transparent PNG, you'll need to remove the background separately after conversion.

Is there a file size limit?

No hard limit. Large JPGs may take a moment to draw onto the Canvas, but there is no enforced maximum.

JPG to PNG Converter

Convert JPG images to lossless PNG format in your browser — no upload required.

How to use this tool

1Click the upload area and select a JPG or JPEG file.
2The PNG is generated instantly and shown in the Output PNG preview on the right.
3Click 'Download PNG' to save the converted file to your device.

About JPG to PNG Converter

PNG's lossless compression makes it the right format when you need crisp edges, transparent backgrounds, or pixel-perfect fidelity — logos, icons, UI screenshots, and graphics with text all benefit from PNG over JPG. This converter loads your JPG onto a Canvas element and exports it as PNG using toDataURL('image/png'), which applies lossless encoding. A side-by-side preview shows the original JPG and the output PNG before you download. One important caveat: converting from JPG to PNG does not recover quality lost during the original JPEG compression. JPEG artefacts — the blocky distortions around edges and in smooth gradients — are baked into the pixel data and will appear in the PNG output too. What PNG does guarantee is that no further quality loss occurs from this point forward. The conversion runs entirely in your browser; no file is uploaded.

Frequently asked questions

Related Tools

Image Resizer

Resize images to exact pixel dimensions in your browser — no upload, no server.

Image

Image to Base64

Convert any image file to a Base64 data URL for embedding in HTML, CSS, or JSON.

Image

Image Compressor

Compress JPG, PNG, and WebP images client-side using the Canvas API — no uploads, no server.

Image