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DNG to PNG

Developed from the raw and kept lossless — for editing, not for sending.

More free conversions, where you upload. The Fylane extension does the same work inside any upload form, on its own free share every day.About the extension

How to convert DNG to PNG

  1. Drop the DNG files.
  2. Nothing to choose — PNG is lossless.
  3. Press Convert and download the PNGs.

What happens to your file

The raw is developed on Fylane’s servers with LibRaw — demosaiced, white-balanced as shot, rendered to sRGB — and written as an 8-bit PNG with no compression loss, then deleted on schedule.

A PNG of a 12-megapixel photo is 20–40 MB: right for an editor, wrong for a message. Use DNG to JPG for anything you send.

Questions

Why is the PNG so large?

PNG compresses without losing anything, and a photograph has little to compress: every pixel is different from its neighbour. That is the price of lossless.

Does the PNG keep the raw’s extra dynamic range?

No — it is 8-bit sRGB, like any screen. The DNG is the negative; keep it for that.

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "image.convert",
    "options": {
      "format": "png"
    }
  }'

The same operation, image.convert — Re-encode to WebP, JPEG, PNG or AVIF at your quality. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.