🖼️ 100% Client-Side · Private · Batch Conversion
JPG to PNG Converter Online
Convert JPG and JPEG images to PNG instantly in your browser. Fast, secure, batch-supported, and completely private with no file uploads.
Input:
JPG
Output:
PNG
Drag & drop JPG files here, or browse
Supports JPG, JPEG up to 50MB · Paste from clipboard · 100% private
How It Works
1
Upload JPG images
Drag and drop individual files or folders, browse your computer, or paste directly from the clipboard.
2
(Optional) Resize
Enter optional width or height values to scale the dimensions. Lock ratio to prevent aspect distortion.
3
Convert to PNG
Click the action button. The conversion is calculated completely offline on your device via HTML5 APIs.
4
Download PNG or ZIP
Save the converted PNG images to your disk individually, or download all compiled assets in a single ZIP.
JPG vs PNG Comparison
| Feature | JPG (JPEG) | PNG |
|---|---|---|
| Compression | Lossy (discards redundant details) | Lossless (retains perfect details) |
| Transparency | No (transparent pixels turn white) | Yes (supports alpha channel transparency) |
| File Size | Smaller (highly optimized for photos) | Larger (due to lossless data payload) |
| Image Quality | Slight block artifacts at high compressions | Pixel-perfect crisp reproduction |
| Editing | Degrades slightly on every re-save | No degradation over multiple saves |
| Browser Support | Universal (all browsers & devices) | Universal (all browsers & devices) |
| Best Use Cases | Complex digital photography, high-color prints | Web logos, icons, screenshots, and overlays |
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Frequently Asked Questions
What is JPG?
JPG (JPEG) stands for Joint Photographic Experts Group. It is the most common lossy format for digital
images. It optimizes photos by discarding details that the human eye is less likely to notice, keeping
file sizes small.
Why convert JPG to PNG?
Converting to PNG is essential if you need to work with transparency (e.g., logo overlays, design
vectors) or preserve sharp edges, fine lines, and small texts, which tend to look blurry under JPG
compression.
Does PNG improve image quality?
A simple format conversion cannot reconstruct graphic details that have already been discarded during
JPG compression. However, converting to PNG stops any further quality decay when modifying the file and
saving it multiple times.
Can I batch convert JPG images?
Absolutely. You can upload or drag and drop multiple JPG or JPEG files into the workspace queue to
convert them simultaneously, client-side.
Are my files uploaded?
No, your privacy is 100% guaranteed. All conversion code executes locally on your device via HTML5
canvas and workers. No image payload is ever transmitted to a web server.
Can I resize before converting?
Yes. Our conversion sidebar contains dimensions resizing boxes allowing you to specify desired width and
height values in pixels before triggering the conversion engine.