Image Converter

JPG to PNG

Convert JPEG images to lossless PNG format for higher quality.

100% Local & PrivateFiles are processed entirely in your browser and never uploaded to any server.
Output Scale
%
Color Mode

Best quality, largest file

Drag & drop, paste (Ctrl+V / ⌘+V), or browse files

Supported formats: JPG, JPEG  ·  Max file size: 20MB

Supports Ctrl+V / ⌘+V paste from clipboard

How to use

1

Add your JPEG

Click to add or drag-and-drop any .jpg or .jpeg file. Files are processed locally in your browser.

2

Adjust output settings

Choose output scale (25–200%) and colour mode: full colour, greyscale, or indexed.

3

Download your PNG

Preview the converted PNG and download it instantly — with no quality loss.

Frequently Asked Questions

Why convert JPG to PNG?

PNG uses lossless compression — ideal for logos, screenshots, and images where every pixel detail matters.

Will converting to PNG increase file size?

Typically yes. PNG files are larger than JPEG because they store full colour data without applying lossy compression.

Does JPG to PNG conversion add transparency?

No. JPEG images have no transparency channel. The resulting PNG will have a solid background matching the original JPEG.

Is my image uploaded to a server?

No. Everything runs 100% in your browser — your files never leave your device.

Is this tool free?

Yes. Completely free with no sign-up, no watermarks, and no usage limits.

What JPEG files are supported?

Any standard .jpg or .jpeg file up to 20 MB is supported.