How to Convert JPG to PNG on Windows

Step-by-step instructions

1. 1

   Convert with Paint

   Right-click the JPG → Open With → Paint. Go to File → Save As → PNG picture. Choose a location and save. Paint converts JPG to PNG quickly — no quality loss beyond what the JPG already had. Good for single files.

   Go to converter
2. 2

   Convert with Photos app

   Open the JPG in Photos (double-click). Click the three-dot menu → Save as. Change file type to PNG in the Save dialog. Click Save. The Photos app produces clean PNG output with no additional compression.

3. 3

   Batch convert with PowerShell

   Open PowerShell and run: `Get-ChildItem -Filter *.jpg | ForEach-Object { $out = $_.FullName -replace '\.jpg$', '.png'; [System.Drawing.Image]::FromFile($_.FullName).Save($out, [System.Drawing.Imaging.ImageFormat]::Png) }`. This converts all JPGs in the current folder to PNG using .NET's built-in imaging library.

4. 4

   Verify the output

   Open the PNG files to confirm they look correct. The PNG should be visually identical to the JPG (same artefacts, same colours) but the file will be significantly larger. If you need to batch-verify, compare file sizes — PNGs should be 2–5× the JPG sizes.