What's supported on Windows
Input: JPG, PNG, WebP, BMP, TIFF, GIF. Output: WebP, JPG, PNG, AVIF, BMP, TIFF. HEIC is not supported on desktop today (the Android app handles it). Name collisions are handled safely: a second a.webp becomes a (1).webp and the first is untouched.
Keyboard shortcuts
- Ctrl+O: pick files.
- Ctrl+Enter: start the batch.
- Esc: close the results dialog.
No ads on desktop
The Windows, macOS and Linux builds have no ads and use no network at all.
Step by step
- 1
Install ConvertX for Windows
Download the installer (.exe or .msi) from the download page and run it.
- 2
Open Image Converter
On the Home screen, click Image Converter (or press Ctrl+O to pick files straight away).
- 3
Add the images
Drag the files from Explorer onto the window, or click "Select image files". Unsupported files are skipped with a note.
- 4
Choose the format and options
Pick the target format, a rename pattern if you want one, and the output folder.
- 5
Convert
Click "Convert N images" or press Ctrl+Enter. The Queue shows each file; the summary offers "Show in folder".
Frequently asked questions
Can I drop a whole folder?
Drop the files inside it; folders themselves are skipped.
Does it need an internet connection?
No. The desktop app never uses the network.
Can it convert HEIC on Windows?
Not yet; use the Android app for HEIC.