Open ORF files in your browser

ORF is the RAW format of Olympus and now OM System cameras. It is TIFF-based but hides its previews in maker-specific corners, which is why generic viewers often fail on it.

OnlineCull combines structured parsing with a careful scan of the file, finds the embedded JPEG whether or not it is where the spec suggests, and shows your shoot as a browsable, ratable contact sheet.

or drop files here|

Free. No upload: files are read on your device and never sent anywhere.

How it works

  1. 01

    Open the folder with your ORF files

    Click "Open a folder" or drag the folder onto the page. OnlineCull reads the files in place; nothing is uploaded, so a full card opens in seconds.

  2. 02

    Browse, zoom, check EXIF

    Every photo appears in a contact sheet with camera, lens, ISO, shutter and aperture. Press Enter for the loupe, Z for a 1:1 focus check, and use a histogram with a clipping warning.

  3. 03

    Rate, flag and export

    Rate 1 to 5, flag picks and rejects with P and X, then export XMP sidecars that Lightroom, Bridge and Capture One read, or copy your keepers into a selects folder.

FAQ

Is this ORF viewer really free?
Yes. No account, no photo cap, no watermark. OnlineCull is a free in-browser tool; it makes money later through optional pro features, never by limiting viewing.
Are my ORF files uploaded?
No. The files are read locally by your browser and never sent to a server. That is also why it is fast: there is no upload step at all.
Which cameras produce ORF files?
ORF comes from OM-1, OM-5 and the Olympus OM-D and PEN lines. OnlineCull also reads the other major RAW formats (CR2, CR3, NEF, ARW, RAF, DNG, ORF, RW2, PEF) plus JPEG and PNG, so mixed folders are fine.
Can I convert ORF to JPG here?
OnlineCull is a viewer and culling tool, not a converter: it shows the full-size JPEG preview embedded in each ORF file. For editing and exporting finished JPEGs, hand your picks to Lightroom or any RAW developer using the XMP export.