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JPG to PNG Converter — Free, Batch, Lossless, No Upload

Convert JPG photos to lossless PNG in your browser. Free batch conversion of up to 20 images with ZIP download; files are not uploaded and sizes stay the same.

Convert in your browser · No sign-up

Choose or drop JPG files

Or drag and drop files here

Up to 20 files · 20 MB per file · Static images only

0 selected · 0 / 0 processed

    How to use

    1. Choose JPG files or drop them into the box.
    2. Convert to lossless PNG; pixel width and height stay the same.
    3. Review each image, then download it individually or as a ZIP.

    Example

    photo.jpg → photo.png
Compression: lossless PNG (no further quality loss)
Dimensions: original pixel width and height

    Details and limitations

    Files are processed in your browser without uploading to a conversion server. No account or watermark.

    Up to 20 files per batch, 20 MB and 40 megapixels each. Images are processed one at a time to limit memory use.

    PNG output can be larger than the JPG source. Converting cannot restore detail already lost in lossy JPG.

    Static images only; animation is rejected explicitly. Metadata such as EXIF is not retained. Color rendering depends on the browser.

    FAQ

    Can I convert several JPG images at once?

    Select up to 20 static images and convert them together. Save successful conversions in one ZIP; a failed file does not discard the others. Repeated filenames receive a numbered suffix.

    Does converting JPG to PNG improve quality or make the background transparent?

    No. PNG stores the JPG's pixels losslessly, so you can edit and re-save without further loss, but compression artifacts already in the JPG remain and the background stays opaque. Expect the PNG file to be several times larger.

    Is it free and safe? Are my images uploaded?

    It is free and needs no account. Conversion runs in your browser, so images are not sent to a conversion server. Output files do not keep EXIF metadata such as camera details or GPS location.

    Does it work on Windows, Mac, iPhone and Android?

    Yes, in a current browser on each; no app or browser extension is needed. Phones have tighter memory limits, so a very large image may fail there — convert it on a computer instead.

    Does converting reduce image quality?

    The pixel width and height stay the same. PNG output is lossless; JPG output is compressed at the quality you choose (92 by default), so fine edges can change slightly. Conversion cannot restore detail already lost in the source.

    Can I convert a whole folder?

    In the file dialog, press Ctrl+A (⌘+A on Mac) to select every image in a folder, then convert up to 20 at a time. Dragging a folder itself is not supported; split larger sets into batches of 20.

    Format references

    Tool page updated: