ToolSink

JPG to PNG Converter

Convert JPG images to PNG format instantly. Batch supported, 100% client-side.

What is the JPG to PNG Converter?

The JPG to PNG tool converts JPG (also called JPEG) photos into the PNG format entirely inside your browser. PNG is a lossless image format, meaning nothing extra is discarded when you save the file — the pixels stay pixel-perfect and the tool adds support for transparency that JPG never had.

You would typically switch to PNG when you need a clean image for a website, a UI mockup, a logo, or when the image has sharp text and edges that JPG artefacts would blur. PNG is also the format most icon-generators and slide-deck tools expect.

ToolSink handles the conversion locally, which means your images are never uploaded to a cloud server. That is important when the photos contain personal data, product mockups under NDA or client artwork.

How to use the JPG to PNG Converter

  1. 1Open the JPG to PNG page and drop your .jpg files onto the upload area.
  2. 2Preview the thumbnail to confirm the correct image was selected.
  3. 3Optionally toggle "preserve transparency" if you plan to remove a background later.
  4. 4Click "Convert to PNG" and wait a second for the browser to re-encode the file.
  5. 5Download the resulting PNG — the tool keeps the original filename with a .png extension.
  6. 6Repeat for as many JPGs as you need. Batch conversion is supported.

Key features

  • Client-side conversion — no uploads
  • Batch process multiple JPGs at once
  • Preserves original resolution and colour depth
  • Transparent-background support in the output PNG
  • Automatic filename renaming (photo.jpg → photo.png)
  • Works on any modern browser and mobile device

Examples

Product mockup

Convert a JPG product shot to PNG so you can drop it into a slide deck without a white box around the object.

Website hero image

A designer converts a JPG banner to PNG to preserve crisp edges for icons and overlaid text.

Icon prep

JPG icons exported from another tool are converted to PNG before being uploaded to a favicon generator.

Why use this tool

  • Higher quality — PNG is lossless, JPG is not
  • Supports transparency, so you can drop images onto any background
  • Ideal for images with text, sharp edges or line art
  • Great for further editing without introducing compression artefacts
  • No file leaves your device

Common use cases

  • Preparing images for websites and blogs
  • Adding transparent versions of photos to slide decks
  • Editing product photos for e-commerce catalogues
  • Creating icons from photos
  • Improving screenshot quality
  • Feeding higher-quality inputs to AI image tools

Frequently asked questions

Will the PNG be larger than the JPG?

Usually yes. PNG uses lossless compression, so file sizes are 2–5× larger than the equivalent JPG.

Do I lose quality during conversion?

No. The JPG already has compression baked in, but no new quality is lost — PNG simply preserves what is there.

Can I convert HEIC or WebP the same way?

This tool focuses on JPG → PNG. Use our other converters for HEIC and WebP.

Does the PNG have transparency automatically?

The alpha channel is added, but the pixels start opaque. Use an editor to erase parts and reveal the transparency.

Is there a maximum image size?

Any image your browser can display can be converted — typically up to 20,000 pixels wide on desktop.