PNG files are lossless and often large, especially for photographs. When you do not need transparency and want a smaller, more shareable file, converting PNG to JPG is the right move. JPG uses lossy compression that dramatically reduces file size, which is ideal for email attachments, websites, and social media where bandwidth and load times matter.
Because JPG does not support transparency, any transparent areas in your PNG are filled with a solid white background during conversion, so your image looks clean and predictable. You can fine-tune the quality slider to balance file size against visual fidelity — a setting around 80–90 usually looks indistinguishable from the original while cutting size by a large margin.
FreeConvertImg performs the entire conversion inside your browser. Nothing is uploaded, so even large batches convert instantly and privately. Adjust the quality once and apply it to every image, then download each JPG or grab them all in a single ZIP.
Frequently Asked Questions
What happens to transparent areas?
JPG has no transparency channel, so transparent pixels are flattened onto a white background during conversion.
What quality setting should I use?
A value between 80 and 90 keeps the image looking sharp while greatly reducing the file size. Lower it further only if you need the smallest possible file.
Is there a file size limit?
There is no fixed limit. Because everything runs locally, the practical limit depends on your device’s available memory.