How to Convert PNG to JPG in Bulk — 3 Methods | PixelForge

Method 1: Using PixelForge (fastest)

PixelForge is the fastest way to convert png to jpg in bulk (3 methods) without installing any software.

Select your images in File Explorer or Finder and create a ZIP file.
Go to Bulk Image Converter — JPG, PNG, WebP.
Drop your ZIP file into the upload zone (or click to browse).
Configure your settings in the settings panel.
Click Process and wait for processing to complete.
Click Download ZIP to save your processed images.

Best for: Anyone who wants results in under a minute without writing code or buying software.

Method 2: Using Photoshop

Adobe Photoshop's Image Processor (File → Scripts → Image Processor) lets you batch-process images with full quality control, but requires a Photoshop license.

Open Photoshop and go to File → Scripts → Image Processor.
Select the folder containing your source images.
Choose your output folder and format settings.
Click Run to process all images.

Best for: Users who already have Photoshop and need precise control over color profiles and metadata.

Method 3: Python (Pillow/PIL)

Python with the Pillow library gives you full programmatic control and is free, but requires coding knowledge.

from PIL import Image
import os

input_dir = "./images"
output_dir = "./output"
os.makedirs(output_dir, exist_ok=True)

for filename in os.listdir(input_dir):
    if filename.lower().endswith(('.jpg', '.jpeg', '.png', '.webp')):
        img = Image.open(os.path.join(input_dir, filename))
        # Add your processing here
        img.save(os.path.join(output_dir, filename), quality=80)

print("Done!")

Best for: Developers who need to automate image processing as part of a larger workflow or CI/CD pipeline.

Frequently asked questions

Will I lose quality converting PNG to JPEG?

Yes — JPEG is a lossy format, so some quality is lost. However, at 80–90% quality the difference is usually imperceptible. If lossless quality is essential, keep images in PNG or convert to WebP instead.

What happens to PNG transparency when converting to JPEG?

JPEG doesn't support transparency, so transparent areas are filled with a background color (usually white or black depending on the tool). PixelForge lets you choose your background color before converting.

Should I convert PNG to JPEG or WebP?

For web use, WebP is usually the better choice — it achieves JPEG-like file sizes while preserving transparency. Convert to JPEG only when you need maximum compatibility with older systems or when the images don't have transparency.

How do I convert hundreds of PNGs to JPEG at once?

Use PixelForge. Upload a ZIP of your PNG files, add a Convert operation with target format JPEG, and download the converted files as a ZIP.

How to Convert PNG to JPG in Bulk (3 Methods)