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Converter Tools

JPG to PNG Converter

Upload a JPG and download it as a lossless PNG — converted entirely in your browser.

JPG → PNGLosslessBrowser basedFree

Last updated: May 30, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution
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What is JPG to PNG Converter?

JPG to PNG converts JPEG images into PNG files. PNG is lossless and supports transparency, so it is a good choice when you need to edit an image repeatedly without accumulating JPEG compression artefacts, or when you want a format that supports an alpha channel.

This converter decodes your JPG with the browser's image engine and re-encodes it as a PNG. Note that converting cannot restore detail already lost to JPEG compression — it produces a lossless PNG copy of the decoded image. Nothing is uploaded to a server.

How to Use JPG to PNG Converter

1

Drop a JPG file onto the upload area or click to browse

2

The image is decoded and re-encoded as PNG instantly

3

Compare the PNG preview with your original

4

Click Download to save the PNG

Common Use Cases

  • Converting a JPEG to PNG before editing to avoid further compression loss.
  • Getting a lossless copy of a JPG for archiving or processing.
  • Preparing an image for a workflow that requires PNG.
  • Producing a PNG that can later have transparency added.

Example Input and Output

A JPEG photo converts to a lossless PNG copy.

Input
photo.jpg (240 KB, JPEG)
Output
photo.png (1.4 MB, lossless PNG)

How This Tool Works

The browser decodes the JPG onto a canvas and exports the canvas as a lossless PNG for download.

Technical Stack

TypeScriptCanvas APIcanvas.toBlobPNG encoderClient-side processing

Lossless copy

PNG stores the decoded image without further loss — ideal before re-editing.

Privacy

Your image never leaves the browser; conversion is fully client-side.

Frequently Asked Questions

Is my JPG uploaded anywhere?

No. The file is decoded and re-encoded entirely in your browser using the canvas API.

Does converting to PNG improve quality?

No. Detail already lost to JPEG compression cannot be recovered; the PNG is a lossless copy of the decoded image.

Will the PNG be larger than the JPG?

Often yes, because PNG is lossless while JPEG is lossy and usually smaller for photos.

Does PNG support transparency?

Yes, but a JPEG has no transparency to begin with, so the PNG will be fully opaque.

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