Convert JPG to PNG Online & Free

Quickly convert JPG to PNG with our fast and secure JPG to PNG converter, designed for clear results and smooth transparency; upload your image, get a high-quality PNG in seconds, no sign-up required, and enjoy free unlimited conversions with privacy-first processing.

More JPG converters to transform your images online

Need more ways to edit your images after using our JPG to PNG converter? Explore our quick, free tools to turn JPGs into WEBP, GIF, PDF, and more—fast, secure, and with great quality.

JPG to PNG Conversion: Frequently Asked Questions

Find quick answers to the most common questions about converting JPG to PNG. Below we explain how it works, what settings to use, and how to keep quality while reducing file size, so you can convert your images with confidence.

What is the difference between JPG and PNG?

JPG (or JPEG) uses lossy compression, which reduces file size by discarding some image data. This makes it ideal for photographs and web use where smaller files and fast loading matter, but repeated edits and saves can degrade quality.

PNG uses lossless compression, preserving all image data for crisp results. It supports transparency (including alpha channels), making it great for logos, icons, text, and graphics where sharp edges and clear backgrounds are important.

Choose JPG for photos and large images when smaller file sizes are a priority, and choose PNG for images requiring transparency, exact detail, or frequent editing. JPG typically yields smaller files; PNG offers higher fidelity for graphics.

Will converting JPG to PNG increase image quality?

No. Converting a JPG to PNG will not increase image quality. A JPG already has lossy compression, which permanently discards some detail. Saving that same image as a PNG simply stores the existing pixels with lossless compression, but it can’t restore the detail that was lost in the JPG.

However, converting to PNG can be useful for specific needs: preserving transparency (if you add it during editing), avoiding additional compression artifacts when repeatedly saving, and maintaining crispness for graphics, text, or logos going forward. Just remember: it won’t improve the original JPG’s quality.

Does PNG support transparency when converting from JPG?

Yes. The PNG format fully supports transparency via an alpha channel, while JPG does not. However, converting a standard JPG to PNG won’t magically create transparency because the original image lacks an alpha channel.

To get transparent areas, you must remove or mask the background during conversion (e.g., make the white background transparent) and save the result as PNG with alpha. Many editors and online tools offer background removal or selection tools to define transparent regions.

If the JPG has solid backgrounds or clearly separable subjects, the conversion plus background removal can yield a clean transparent PNG. For complex backgrounds, expect to refine edges, use feathering, or manual touch-ups to maintain quality.

How can I reduce the PNG file size after conversion?

Use lossless compression tools to shrink PNGs without quality loss. Try utilities like pngquant (converts to PNG-8 with adaptive palette), oxipng/zopflipng for deep optimization, or online optimizers. Enable options like palette reduction, removing ancillary chunks/metadata, and higher compression levels.

Before exporting, reduce image complexity: resize to the needed dimensions, crop unused areas, and lower bit depth (e.g., from 24-bit to 8-bit indexed when suitable). For graphics with few colors or flat areas, using a palette yields major savings with minimal visible change.

For web use, consider whether PNG is necessary. Photos usually compress better as JPEG or WebP (lossy), while icons/logos can be SVG. If PNG is required, combine steps: clean metadata, reduce palette/bit depth, then run a final pass with oxipng -o4–o6 or zopflipng for the smallest size.

Will metadata be preserved when converting from JPG to PNG?

By default, converting from JPG to PNG does not guarantee that EXIF, IPTC, or XMP metadata will be preserved. Many basic converters prioritize the pixel data and drop non-image tags during export.

Whether metadata is kept depends on the tool and settings. If the converter supports reading EXIF from JPG and writing equivalent fields into PNG tEXt/iTXt chunks, it can transfer camera info, dates, and GPS data; otherwise, those fields will be lost.

For best results, choose a converter that explicitly offers metadata preservation and enable that option. If needed, use a metadata utility (e.g., ExifTool) after conversion to verify or copy tags from the original JPG to the resulting PNG.

Are colors or image details altered during JPG to PNG conversion?

During a straightforward JPG to PNG conversion, the converter doesn’t intentionally change colors; it preserves the pixel values it reads. However, JPG uses lossy compression, so any artifacts or slight color shifts already present in the JPG will remain visible in the PNG because conversion itself can’t restore lost information.

PNG uses lossless compression, so it won’t introduce new compression artifacts. That said, differences can appear if color profiles or gamma metadata are handled differently—mismatched or stripped ICC profiles/gamma tags may cause the image to look a bit lighter, darker, or shifted on some devices or apps.

To minimize changes, ensure the source JPG has the desired color profile embedded, and use a converter that preserves metadata (ICC/gamma). Avoid re-saving the PNG with color-altering edits, and compare results across viewers that consistently honor embedded profiles.

Is there a file size limit for JPG to PNG conversions?

Yes—most online tools set a maximum file size for JPG to PNG conversions to ensure fast processing and reliable uploads. Limits commonly range from 25 MB to 100 MB, though this varies by service and your device/browser capabilities.

If your image exceeds the allowed size, try compressing the JPG first, reducing its resolution, or converting it in smaller batches. For very large files, consider a desktop app or command-line tool that doesn’t impose strict upload limits.

Is my uploaded image secure and deleted after conversion?

Yes—your uploaded image is treated with end-to-end security: files are transferred over encrypted HTTPS, processed automatically, and deleted from our servers shortly after conversion. We do not retain, sell, or use your images for any purpose beyond the conversion you request, and only you can access your files via the unique session link during processing.

Other file converters

Convert HEIFConvert IPYNB