ORF to PNG Converter

Convert ORF to PNG Online

ORF is Olympus's RAW photo format — the unprocessed sensor data from OM-D, PEN, and OM System cameras — which most apps, browsers, and websites can't open directly. This tool renders your ORF into a PNG, a universally supported image that uses lossless compression, so the rendered photo keeps every pixel of detail. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.

How to Convert ORF to PNG

1. Upload Your ORF File: Drag and drop your .orf files onto the page, or click "+ Add Files" to browse your computer. You can queue several at once and convert them with the same settings.
2. Set the Quality Preset: Open Advanced Options and leave Quality Preset on "Very High (Recommended)" for the best-looking render, or lower it if you want a smaller file.
3. Adjust Resolution or Colors (Optional): Use Image resolution to keep the original pixel dimensions or scale to a preset, set Width × Height, or reduce the color palette under Colors if you need a lighter file.
4. Convert and Download: Click "Convert" and download your PNG. No sign-up, no watermark.

ORF vs PNG: What You Gain and Lose

ORF stores raw sensor data with editing latitude PNG can't carry; PNG stores a finished, sharable image anything can open. Convert when you need the photo on the web, in a document, or in an app that won't read RAW — but keep your original ORF for re-editing.

Frequently Asked Questions

Will I lose image quality converting ORF to PNG?

No quality is lost in the encoding step — PNG is a lossless format, so the rendered photo keeps every pixel the converter produces. What you lose is editing latitude, not detail: an ORF holds 12 or 14 bits per channel of raw sensor data, while PNG tops out at 16 bits per channel of finished RGB. The image looks identical; you just can't recover blown highlights or re-balance white balance afterward the way you can from the RAW.

Should I convert ORF to PNG or JPG?

Choose PNG when you want lossless quality, sharp edges (text, screenshots, graphics over the photo), or transparency. Choose JPG when file size matters more than perfect fidelity — a PNG render of a 20-megapixel Olympus photo is typically several times larger than the equivalent JPEG. For photos headed to the web or email where size counts, convert ORF to JPG instead.

Why can't my computer open ORF files directly?

ORF is a proprietary Olympus container built on the TIFF/EP standard, but with custom signature bytes (MMOR, IIRO, or IIRS) instead of the standard TIFF magic, so generic viewers reject it. RAW formats also need camera-specific decoding to turn sensor data into a viewable image. Converting to PNG renders that data once into a standard file your photo viewer, browser, and editing apps all recognize.

Does the PNG keep my Olympus camera's high-resolution mode detail?

Yes — the converter renders whatever resolution is recorded in the ORF, including the larger files from Olympus high-resolution shot modes (introduced on the OM-D E-M5 Mark II in 2015 and carried into later OM-D and OM System bodies). The PNG keeps those full pixel dimensions unless you scale them down yourself under Image resolution.

Is ORF still supported now that Olympus sold its camera business?

Yes. Olympus transferred its imaging business to OM Digital Solutions, effective January 1, 2021, and cameras now ship under the OM System brand — but they still write the same ORF RAW format. Files from both older Olympus bodies and current OM System cameras convert the same way here.

What's the difference between converting ORF to PNG and to TIFF?

Both are lossless, but TIFF can preserve 16-bit-per-channel depth and is the better target if you plan to keep editing in a photo editor. PNG is the better target for sharing, web use, and transparency. If your goal is an editing master rather than a finished image, convert ORF to TIFF instead.

How large will the PNG file be?

PNG is lossless, so a full-resolution render of a 16–20 megapixel Olympus photo is often larger than the original compressed ORF — sometimes 20 MB or more — because PNG doesn't discard data to save space. In our testing, leaving Quality Preset on "Very High" and the original resolution produces the largest, sharpest file; lowering the resolution or reducing colors under the Colors option brings the size down noticeably.