Free 100% In-Browser Tool

PNG to JPG Converter: Convert PNG to JPEG Online

Convert heavy PNG graphics to lightweight, compressed JPG files with clean white background fills.

Quick Answer:Select PNG files to convert them into compressed JPGs, reducing file size while replacing transparency with a clean white background.

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Privacy First: 100% Client-Side Processing

Processed in your browser. Files are never uploaded.

How to Use the PNG to JPG Converter (Reduce File Size)

1Select or drag and drop your .png files into the converter.
2The tool renders the PNG onto a canvas and fills transparent pixels with pure white.
3The image is compressed to high-quality JPEG at a 92% quality setting.
4Download your lightweight .jpg files.

PNG (Lossless) → Canvas Draw → JPEG Compression (0.92)

Draws PNG source to canvas, applies #FFFFFF background fill, and outputs compressed JPEG data stream via canvas.toBlob.

Input: screenshot.png (3.4 MB)

Explanation: Compresses large desktop screenshots into lightweight web-ready files.

Result: screenshot.jpg (420 KB — 87% smaller)

Input: graphic.png (Transparent background)

Explanation: Fills transparency to ensure clean display on all viewers.

Result: graphic.jpg (Solid white background)

Input: illustration.png (2500×2500, 5.8 MB)

Explanation: Dramatically reduces file size while preserving sharp visual fidelity.

Result: illustration.jpg (820 KB)

How much smaller is a JPG than a PNG?▼

For photographs and detailed screenshots, a JPG is typically 60% to 85% smaller in file size than an equivalent PNG.

What happens to the transparent background in my PNG?▼

Because JPG does not support transparency, our converter automatically applies a clean solid white background.

Are my files uploaded anywhere?▼

No. All conversion is executed in your browser's local memory via HTML5 canvas.

Can I convert multiple PNGs at once?▼

Yes, you can batch select multiple PNGs and download them simultaneously.

Is this tool free?▼

Yes, 100% free with unlimited conversions.

Metric	Original PNG	Converted JPG
Typical File Size	2.0 MB – 5.0 MB	200 KB – 500 KB (70–90% reduction)
Compression	Lossless	Lossy (high-quality 0.92)
Transparency	Supported	Replaced with solid white fill
Best Use	Logos, icons & graphics	Photographs & heavy screenshots

•Converting graphics that require transparency (if you need a transparent background, keep the file as a PNG).
•Over-compressing text screenshots (our 0.92 quality factor ensures crisp, readable text without JPEG compression artifacts).
•Uploading sensitive identity documents to public cloud converters (our tool runs 100% locally on your machine).

•Compressing screenshots for email attachments and support tickets.
•Reducing photo sizes to meet strict 2MB or 5MB file upload limits on job applications.
•Optimizing e-commerce product catalogs to improve website loading speeds.

✓Use PNG when you need transparent backgrounds, sharp geometric lines, and pixel-perfect logos.
✓Use JPG for realistic photographs, landscapes, and complex scenes where file size reduction is crucial.

Last reviewed & updated: 2026-11-01

Free & Open Access

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