Selected files are processed in this browser and are not uploaded to ImgMini.
JPG to PNG converter
Convert JPG / JPEG images to PNG locally in your browser.
No upload Batch ready Mobile friendly
Drop files here or pick from your device. Supported: JPG.
Up to 30 files, 100 MB each. 0 files selected
No files selected Images stay in this browser tab while ImgMini works.
Drag the crop box. Use the handle to resize.
- 1SelectChoose or drop your images.
- 2ProcessAdjust the options and run the tool.
- 3DownloadSave the finished files.
Your images stay private.Processing happens locally in this browser. Files are never uploaded or stored.
Continue with ImgMini
Related workflows use the same private browser pipeline.
A practical guide to jpg to png
Use jpg to png when you need a compatible result without sending the source image to a conversion server.
ImgMini processes each file locally and shows the result before download, so you can judge image quality and file size together.
The browser decodes the source and creates a new file using the selected settings.
Compare visual quality, dimensions, and file size before downloading the result.
Choose settings for the destination
Keep the original as your source, then choose the output format, quality, and dimensions required by the app, website, or person receiving the image.
Checks before downloading
- Inspect text, edges, gradients, and transparency in the comparison viewer.
- Check the new dimensions and file size before downloading.
- Convert again from the original when you need different settings.
Questions
Are my images uploaded to ImgMini?
No. ImgMini runs the conversion in your browser. The selected files stay on your device unless you choose to share them elsewhere.
What happens when I convert JPG to PNG?
ImgMini decodes the JPG image in your browser and creates a new PNG file using the selected output settings.