Convert JPG Images to PNG via API
Convert JPG images to lossless PNG format via REST API. Upload your JPEG file as multipart/form-data and receive a high-quality PNG in response. Perfect for designs requiring transparency or lossless quality.
# Convert JPG image to PNG
curl -X POST \
https://api.convertfilefast.com/v2/convert/jpg-to-png \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "file=@photo.jpg" \
--output photo.png
# HTTP 200 OK — Content-Type: image/pngAdvantages
Why use our API?
Complete and reliable solution for integration in any tech stack.
Lossless PNG Output
Receive a lossless PNG that preserves every pixel from your source JPG without any additional compression artifacts.
Simple API Call
Upload your JPG as multipart/form-data. No extra parameters needed. Receive the PNG binary in the response.
Transparency Support
PNG output supports transparency (alpha channel) for use in designs, logos, and web graphics.
Batch Conversion
Loop through directories of JPG files and convert each one to PNG programmatically in your automation scripts.
n8n Workflow Support
Convert JPG images to PNG in n8n workflows triggered by file uploads, email attachments, or Google Drive events.
Zero Storage
JPG files are converted in memory and deleted immediately. Your images are never stored on our servers.
Start Converting JPG to PNG
Get your API key and convert JPG images to PNG in seconds. Free plan includes 10 conversions per month.
No credit card. 10 free conversions on Free plan.