Convert JPG to PNG Online

Convert JPEG images to lossless PNG format instantly in your browser — free, private, no upload required.

Convert JPG to PNG Free →Free · No signup · No upload

Need to convert a JPEG to PNG? Whether you need a lossless copy for editing, want to add transparency to a design, or require PNG for a specific platform, Resizor makes the conversion instant and effortless. Simply drop your JPEG files in and download high-quality PNGs — all processed locally in your browser with no upload required.

Unlike JPEG, PNG uses lossless compression, which means your image won't lose any further quality with re-saves. This makes PNG ideal for design work, image editing pipelines, and any use case where you need to preserve the exact pixels from your JPEG source. Resizor uses WebAssembly (wasm-vips) for accurate, high-quality conversion. Batch mode lets you convert entire collections in one step.

How It Works

1

Upload Your JPEG

Select one or more JPG/JPEG files from your device. Batch conversion is supported.

2

Select PNG Output

Choose PNG as the output format. PNG uses lossless compression — no quality is lost in conversion.

3

Download PNG Files

Download your high-quality PNG files, ready for editing, printing, or any use that requires lossless quality.

Why Choose Resizor?

🔒

Private & Secure

Conversion runs entirely in your browser. Your images are never sent to any server.

✨

Lossless Output

PNG is lossless — once converted, your image won't degrade further with re-saves, unlike JPEG.

📦

Batch Convert

Upload multiple JPEGs and convert them all to PNG in one step.

🆓

Free & Unlimited

No account, no watermarks, no file limits. Convert as many images as you need for free.

Frequently Asked Questions

Why convert JPEG to PNG?
The main reasons are: (1) PNG is lossless, so you can edit and re-save without any further quality degradation. (2) PNG supports transparency, which JPEG does not. (3) PNG is better for screenshots, diagrams, and text-heavy images where sharp edges matter.
Will converting JPEG to PNG improve image quality?
No. Converting JPEG to PNG doesn't recover the quality lost during JPEG compression. It simply creates a lossless copy of your JPEG pixels. To get better quality, you need the original uncompressed source image.
Is PNG or JPEG better for web?
It depends on the image. For photographs use JPEG (or better yet, WebP). For logos, icons, screenshots, and images needing transparency, use PNG. For the best of both worlds use WebP, which supports both lossy and lossless compression with transparency.
Can I convert PNG to JPG with Resizor?
Yes. Resizor supports conversion in both directions — JPEG to PNG and PNG to JPEG — as well as to WebP, AVIF, and other formats.
How do I convert a JPEG with a transparent background?
JPEG doesn't support transparency, so there is no transparent background to preserve. When converting JPEG to PNG, Resizor creates a PNG without an alpha channel. If you need transparency, you'll need to add it using an image editor after conversion.

Convert JPG to PNG Online — Start Now

100% free, runs in your browser. No signup required.

Convert JPG to PNG Free →