🔒 100% Browser-Based · No Uploads•Zero Server Uploads

JPG to PNG Converter

Convert JPG to PNG. Lossless Quality, Zero Uploads.

Transform your JPEG images into high-quality PNG files with transparency support — all processed locally in your browser.

100% Private

Zero cloud uploads

Format Fidelity

Clean format conversion

Instant Speed

Runs right in browser

Free Online

No limits or watermark

Get Desktop App for Folders
WindowsmacOSLinuxWin • Mac • Linux
Fast & Secure
100% Private (No Uploads)

Drag & Drop Files Here

or click to browse from your device

Accepted: jpg, jpeg

Tool Options

100% In-BrowserZero Cloud Uploads
FastCompressor Web

Need to convert a JPG to PNG for transparency support, lossless editing, or print workflows? Our converter does it instantly in your browser.

The Canvas API handles the conversion locally — your images stay on your device. No cloud processing, no waiting in queues, no daily limits. Batch process up to 10 images at once.

Why FastCompressor

Why Convert JPG to PNG?

🎨

Lossless Editing Without Degradation

Every time you edit and re-save a JPG, it loses quality due to re-compression. Converting to PNG first gives you a lossless format for editing — crop, resize, and adjust without generation loss.

🪟

Add Transparency Support

PNG supports alpha transparency, which JPG cannot. Convert your JPG to PNG as the first step before removing backgrounds or adding transparent overlays in your design tool.

🖨️

Better for Print & Design Workflows

PNG's lossless compression is preferred for design mockups, logos on photos, and print production where every pixel matters. No compression artifacts, no color banding.

🔐

Total Privacy Guaranteed

Your images never touch our servers. The conversion happens entirely in your browser's Canvas API. Close the tab and there's zero trace of your files.

Simple Workflow

How to Convert JPG to PNG

Fast, private conversion in three quick steps.

01

Upload Your JPGs

Drag and drop your JPEG files into the converter or click to browse. Supports batch upload of up to 10 files.

02

Convert Instantly

Hit the Process button. The Canvas API converts your JPGs to high-quality PNGs in milliseconds.

03

Download PNGs

Download your lossless PNG files individually or all at once with a single click.

Workflows

Common Use Cases

Built for professionals who need speed, privacy, and quality.

Designers preparing JPG photos for transparent-background composites

Developers converting screenshots to PNG for pixel-perfect documentation

Print professionals needing lossless format for production workflows

Content creators preparing images for overlay and compositing work

Archivists converting JPEG photos to lossless format for preservation

Why use FastCompressor Desktop for jpg to png converter?

Online tools are great for quick, single-image edits. But when you need to process hundreds of files or maintain strict privacy, native software is the only way to go.

Feature
Desktop App
Online Tools
Upload Required
Internet Required
Batch Compression
Unlimited
Usually capped
Folder Support
Privacy
100% Local
Uploaded to servers
Large Files
No limits
Strict limits
Help & FAQ

Frequently Asked Questions

Common questions about in-browser JPG to PNG optimization.

View all FAQs→
Converting JPG to PNG preserves the current quality in a lossless format — it won't add detail that was already lost during JPG compression, but it prevents any further quality loss during future edits and saves.
Native Desktop Client

Ready to convert your JPGs?

Drop your files above for instant, private conversion — or get the Pro app for unlimited batch processing.

macOS• Windows• Linux