Photo ToolboxDownload on the App Store

Convert Format

Convert JPG, PNG and static WebP images locally. Choose transparency-friendly PNG or WebP, or widely compatible JPG.

Processed on your device · No account needed

Start with your photos

Drop files here or choose from your device

JPG, PNG, static WebP · 20 MB / file · 16 MP / image

Choose photos to begin.

Your settings

All exports omit source EXIF/GPS. PNG/WebP retain transparency; JPG uses white. Colour is converted through sRGB.

How to use Convert Format

  1. Choose up to 12 supported images.
  2. Select JPG, PNG or WebP. Set quality for JPG/WebP.
  3. Convert, review the output details and download your files or ZIP.

Know before you export

HEIC, RAW, GIF, SVG and AVIF inputs are not supported here. The iPhone app has a separate native HEIC workflow. JPG is lossy and flattens transparency to white; PNG does not recover detail already lost in a JPG.

JPG, PNG and static WebP. Up to 20 MB per file, 60 MB per batch, 12 files and 16 megapixels per image. Output is limited to 16 megapixels and 8,192 pixels per side. Browser memory may impose lower limits.

Source metadata is not copied. Browser colour conversion can change wide-gamut or HDR images. Keep your original files.

Common questions

Is converting JPG to PNG lossless?

PNG encoding does not add JPEG artefacts, but conversion cannot reverse previous JPEG damage. Colour conversion and browser decoding can still change pixel values.

Will transparency survive?

PNG and WebP retain alpha transparency. JPG replaces transparent areas with white.

Are my photos uploaded?

No. Processing runs locally in your browser with self-hosted code. Hosting access logs relate to page requests; selected photo bytes are not sent. See our privacy information.