JPG to PNG Converter
Convert JPG and JPEG images to lossless PNG format. Batch support, 100% free, 100% private.
Drop your JPG files here
or browse files — accepts .jpg, .jpeg files
PNG (lossless) — no quality setting needed. PNG preserves every pixel exactly as-is.
How to Convert JPG to PNG Online
SmarterSources's JPG to PNG converter transforms your JPEG images into lossless PNG format directly in your browser. PNG is a lossless image format that preserves every pixel of your image without any additional compression artifacts. This conversion is useful when you need a format that supports transparency, when you're editing images and want to prevent further quality degradation, or when a platform or application specifically requires PNG files.
Does Converting JPG to PNG Add Transparency?
No. Converting a JPG to PNG changes the file format but does not automatically add transparency to your image. The resulting PNG will look identical to the original JPG — it will have the same colors and the same solid background. If you need to remove a background or create transparent areas, you'll need to use a dedicated Background Remover tool after converting.
Why Does the File Size Increase?
JPG uses lossy compression that achieves very small file sizes by discarding some image data. PNG uses lossless compression that preserves all pixel data exactly. Because PNG doesn't throw anything away, the file is typically larger — often 3-5x the size of the JPG. This is completely normal and expected. The benefit is that no further quality is lost when saving, editing, or re-saving the PNG file.
Privacy Guarantee
SmarterSources converts your JPG files entirely within your browser. No files are uploaded to any server. Your images never leave your device, making this the most private JPG to PNG converter available online.
Frequently Asked Questions
Does converting JPG to PNG add transparency?
No. Converting JPG to PNG only changes the file container format — it does not add transparency to the image. The converted PNG will have the same solid background as the original JPG. To make parts of an image transparent, you need to use a background removal tool. SmarterSources offers a free Background Remover that can help with that.
Will my image quality improve by converting to PNG?
No. Converting from JPG to PNG does not restore quality that was already lost during the original JPEG compression. The conversion preserves the image exactly as it is — no quality is added and no further quality is lost. The main benefit is that the PNG format won't introduce any additional compression artifacts if you need to edit and re-save the file.
Why is the PNG file so much larger than my JPG?
This is completely normal. JPEG achieves small file sizes through lossy compression, while PNG uses lossless compression that preserves every pixel exactly. A 500 KB JPG might become a 2-3 MB PNG. The tradeoff is that the PNG can be edited and re-saved indefinitely without any further quality loss, while re-saving a JPG would degrade quality each time.
Is there a limit to how many files I can convert at once?
There is no artificial limit on batch size. Since all processing happens in your browser, the only constraint is your device's available memory. Most devices can comfortably handle dozens of images at once. For very large batches (100+ files), you may want to process them in smaller groups for best performance.
Are my files uploaded to a server?
No. SmarterSources processes everything entirely in your browser using the HTML5 Canvas API. Your JPG files never leave your device — nothing is uploaded, stored, or transmitted. This makes it the safest way to convert sensitive or private images online.