JPG ↔ PNG
“Swap formats. Keep the fidelity.”
Convert between JPG and PNG with adjustable quality and full transparency control — instantly, in your browser, with zero uploads.
Supports multiple files at once
Format freedom. Full fidelity.
Convert between JPG and PNG with full control over quality and transparency — all in your browser.
How to Convert JPG to PNG or PNG to JPG Free Online
JPG and PNG serve different purposes, and switching between them is a common need — whether you’re preparing a logo for a presentation, reducing a screenshot’s file size, or adding transparency support to an image. CrimsonPDF’s JPG ↔ PNG Converter handles both directions automatically, detecting each file’s format and converting it to the opposite — all inside your browser, with zero uploads.
JPG vs PNG: Which Should You Use?
- JPG (JPEG): Uses lossy compression, producing significantly smaller files. Ideal for photographs and complex images where minor quality loss is imperceptible. Does not support transparency.
- PNG: Uses lossless compression, preserving every pixel exactly. Ideal for logos, icons, screenshots, and any image with sharp edges, text, or transparency requirements. Produces larger files than JPG.
Handling Transparency When Converting PNG to JPG
Because JPG has no alpha channel, any transparent regions in your PNG must be filled with a solid color during conversion. CrimsonPDF lets you choose this fill color — white, black, a custom brand color, or any hex value — so the final JPG looks intentional rather than showing an unexpected black or white background.
Adjustable Quality for Smaller Files
When converting to JPG, the quality slider controls the tradeoff between file size and visual fidelity. Settings around 85–95 typically retain excellent visual quality while meaningfully reducing file size compared to PNG. Lower settings produce smaller files at the cost of visible compression artifacts, useful for web thumbnails or situations where storage space is critical.
Is My Image Safe During Conversion?
Yes. CrimsonPDF processes every image using the browser’s native Canvas API — no file is ever uploaded to a server, stored in the cloud, or retained after you close the tab. This makes it suitable for converting personal photos, confidential graphics, and proprietary design assets without any privacy concerns.