JPG to PNG Converter

This converter turns a JPG or JPEG image into a PNG with exactly the same pixels and dimensions. PNG is a lossless format, so from this point on the picture can be edited and re-saved as often as you like without losing any more quality.

Why JPG quality slips away with every save

JPEG compression splits a picture into blocks of 8 × 8 pixels, converts each block into frequency components and then rounds away the fine detail the eye is least likely to miss. That rounding is permanent. Open a JPG, make a small change and save it as JPG again, and the whole image is compressed a second time, losing a little more. After several rounds you see smeared textures, blocky skies and halos around edges; this is called generational loss.

Saving your working copy as PNG stops the process. PNG uses lossless compression, similar in principle to a ZIP file, so what you save is exactly what you get back.

What the conversion does and doesn't do

• It preserves the current quality exactly. Every pixel in the PNG matches the decoded JPG.
• It cannot repair existing damage. Blockiness and fuzzy edges already baked into the JPG stay in the PNG.
• It doesn't add transparency. JPG has no transparent pixels, so a white background stays solid white.
• It makes the file bigger, often several times over for photos, because lossless compression copes poorly with the fine grain of camera images.

Converting step by step

1. Drop a .jpg or .jpeg file onto the upload area.
2. Click Process image. You can ignore the Quality slider, because PNG output is always full quality.
3. Check the Result size, then click Download result.

Good reasons to switch a JPG to PNG

• Multi-step editing. Designers keep a PNG master while cropping, retouching and adding elements, and export a JPG only at the end.
• Adding text or graphics. Captions, arrows and logos placed on a photo keep crisp edges when the final result is saved as PNG.
• A required format. Some print shops, design tools and upload forms ask specifically for PNG.
• Screenshots saved as JPG by mistake. Converting stops further damage before you annotate them.

When you should keep the JPG

For sharing photos on WhatsApp, email or social media, JPG remains the sensible choice; the PNG would just be a bigger file carrying the same picture. For websites, a modern format beats both: the JPG to WEBP converter produces smaller files than either. If you converted to PNG for editing and now need a compact version again, PNG to JPG takes you back.

For a logo that only exists as a fuzzy JPG, it is better to find or recreate the original artwork than to convert; the PNG will faithfully keep the fuzz. The conversion runs entirely in your browser, so your file is never uploaded.