CalcBrew

Image Converters

JPG to PNG

Some apps, icon slots and print services only accept PNG. Convert a JPG to PNG here β€” pixels are copied exactly, nothing is recompressed.

Runs in your browser β€” files never leave your device.

Drop JPG files here

or click to browse Β· paste from clipboard Β· up to 100 MB each

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Why convert JPG to PNG

Once a photo is JPG, converting to PNG cannot recover lost detail, but it does stop further loss: every later edit and save of the PNG is lossless. That makes PNG the right working format when you plan to retouch an image several times.

App stores, logo uploaders and some web builders demand PNG regardless of content. This conversion satisfies the requirement without altering the picture.

How it works

  1. Drop JPG file onto the box above, click it to browse, or paste from the clipboard.
  2. Check the file list; remove anything you added by mistake.
  3. Press Convert. The work happens on your device, so speed depends on your computer or phone.
  4. Download the PNG β€” individually or all at once.

About the formats

JPG Β· JPEG image Β· .jpg

The universal photo format: small files, supported by every device, camera and website, but no transparency and slight quality loss on each save.

  • JPEG compression discards fine detail the eye rarely notices; quality 80–90 is usually indistinguishable from the original at a fraction of the size.
  • Re-saving a JPG repeatedly adds generation loss, so keep an original and export copies.
  • JPG has no alpha channel β€” transparent areas become white or black when converted from PNG.

PNG Β· Portable Network Graphics Β· .png

Lossless image format with transparency, ideal for screenshots, logos, icons and graphics with sharp edges or text.

  • PNG is lossless: every pixel is preserved, which is why photos saved as PNG are 5–10Γ— larger than JPG.
  • Supports an 8-bit alpha channel, so edges can be partially transparent.
  • Most browsers and apps have supported PNG since the late 1990s.

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Frequently asked questions