Convert JPG to PNG

Why convert a JPG to PNG?

JPG is the right format for sharing finished photos, but a poor one for working on them. Every time a JPG is edited and saved, it is compressed again and loses a little more detail; after a few rounds, blocky artefacts creep into skies and skin. PNG never does this. Convert once to PNG, make all your edits there, and export a JPG only at the very end. Design tools also prefer PNG: pasting a JPG into a layout as a layer, cutting out a background, or using an image as a mask all work better from a lossless source.

• Editing masters. Open the PNG in Photoshop, GIMP, Affinity or Figma and re-save as often as you like.
• Transparency work. Remove a background and the PNG can hold the resulting alpha channel; a JPG cannot.
• Upload requirements. Some platforms, print services and CMS fields only accept PNG.
• Pixel-exact archiving. A PNG is a faithful record of the image as it exists now.

What conversion does and does not do

Be clear-eyed about the result. A PNG made from a JPG contains exactly the pixels the JPG decoded to, no more and no less. The conversion does not recover detail the JPG threw away, does not sharpen anything and does not add transparency on its own. What it guarantees is that nothing further is lost from this point on. That is why photographers call it "freezing" an image before a long edit.

Expect the file to be much bigger. Lossless compression finds little to squeeze in photographic data, so a 3 MB JPG typically becomes 15 to 25 MB of PNG. For a working file that is a fair trade; for sharing, convert back with PNG to JPG or PNG to WebP when you are done.

How Tinyvert handles it

The browser's own JPEG decoder reads each file and honours its EXIF orientation flag, so portrait photos come out upright rather than rotated. The pixels are drawn to a canvas and written as a standard 32-bit RGBA PNG by the browser's encoder. The work happens entirely on your device: no upload, no server copy, nothing to delete afterwards. The output carries no metadata, which is a privacy benefit if you later publish it, but means you should keep the original if you need the capture date or location.

Batches and big files

Drop a folder's worth of photos and each converts in turn with its own progress bar. Because PNGs are large, a batch of high-resolution photos can add up to hundreds of megabytes; download them individually on a phone, or as a ZIP on a computer with room to spare. If you only need smaller dimensions, run the files through the resizer first and choose PNG as the output there instead.