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Convert JPG to PNG online

Convert JPG to lossless PNG without quality loss. Drag in a photo, preview, download. No signup.

What is a JPG to PNG converter?

JPG compresses with lossy artifacts. PNG keeps every pixel. Use this when you need a lossless edit intermediate, a screenshot without further JPEG mush, or a file for tools that prefer PNG. Conversion happens on a canvas in your tab; nothing is uploaded for processing.

JPG to PNG converter features

Simple, fast, private format conversion.

  • Drag and drop upload

    Drop or select JPG files from your device.

  • Live preview

    See your image before downloading.

  • Lossless output

    PNG preserves every pixel with no compression artifacts.

  • Browser-based

    No server upload or account required.

How to use this tool

Convert JPG to PNG in seconds.

  1. Upload JPG

    Drop or select a JPG or JPEG file from your device.

  2. Preview

    Inspect the image in the preview area.

  3. Download PNG

    Save the lossless PNG to your device.

Tips for JPG to PNG conversion

Get the best results.
  • 01

    Expect larger files

    PNG files are significantly larger than JPG, plan storage accordingly.

  • 02

    JPG artifacts remain

    PNG preserves existing JPG artifacts. Start from the highest quality JPG available.

  • 03

    Best for solid graphics

    PNG excels at images with text, logos, or sharp edges where JPG artifacts are visible.

Image Format Converters Compared — Which One Fits Your Workflow

How this free JPG to PNG converter stacks up against other popular options.

  1. Convertio.co

    JPG to PNG with quality settings. Free for files under 100 MB.

  2. CloudConvert.com

    JPG to PNG with resolution control. Daily free conversion limit.

  3. OnlineConvert.com

    JPG to PNG batch converter. Free with file size limits and ads.

  4. LeanImg.com

    Browser-based JPG to PNG converter. No upload needed. Supports batch up to 10 images. No quality adjustment.

  5. JPG to PNG

    Convert JPEG images to PNG format with alpha channel support. Adjustable output quality. All processing in your browser.

Great for

Common JPG to PNG conversion scenarios.

  • Editing workflow

    Convert to lossless PNG for further editing without quality loss.

  • Web graphics

    Use PNG for images that need transparency or crisp text.

  • Archiving

    Preserve images in a lossless format for long-term storage.

  • Design assets

    PNG is the standard format for UI and graphic design work.

Why use this tool

Fast, private, lossless JPG to PNG conversion.

  • 100% free

    No sign-ups, no limits, no hidden costs.

  • Privacy first

    All processing happens locally in your browser.

  • No app needed

    Works directly in your browser on any device.

  • High quality output

    Lossless PNG preserves all image data.

Technical details

How JPG to PNG conversion works.
Conversion path
JPG loaded as Image → drawn to Canvas 2D → PNG export via toDataURL.
Output cap
Maximum 8192 px per edge.
Export format
PNG — lossless, no quality setting needed.

Sources & References

Authoritative references on the JPEG format, browser-based image conversion, and PNG output.
  • “JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.”
    — Wikipedia — JPEG

    JPEG format overview: JPEG is a widely used lossy image format. This tool converts JPEG images into lossless PNG format, preserving the existing image data while changing the container format. en.wikipedia.org/wiki/JPEG

  • “The Canvas API provides a means for drawing graphics via JavaScript and the HTML canvas element.”
    — MDN Web Docs — Canvas API

    Canvas API (client-side rendering): This tool uses the Canvas 2D API to load JPEG images and export them as PNG. MDN documents the canvas API's image loading and data export capabilities. developer.mozilla.org/en-US/docs/Web/API/Canvas_API

  • “PNG supports lossless data compression, making it useful for storing graphics that need to be edited repeatedly without losing quality.”
    — W3C — PNG Specification

    PNG image format specification: The tool exports images as lossless PNG. The W3C PNG specification describes the format's support for lossless compression and alpha transparency. w3.org/TR/PNG/

  • “The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality.”
    — Wikipedia — JPEG

    JPEG — Wikipedia: Understanding the JPEG format helps explain why converting to PNG preserves existing artifacts but prevents further quality degradation from re-compression. en.wikipedia.org/wiki/JPEG

Frequently Asked Questions

Quick answers about this tool—open a question to read more.