What opens an ORF file?

Lightroom, Capture One, and OM System's free OM Workspace. darktable and RawTherapee handle them at no cost too.

Why are ORF files smaller than other raw formats?

Micro Four Thirds sensors have fewer, smaller photosites than full-frame sensors, so there's less data to store. It's a practical advantage when sharing files.

Does Olympus software give better results?

For colour rendition, often yes — OM Workspace applies the camera's own profiles, which third-party converters approximate. For general editing, Lightroom and Capture One are more capable.

Host an ORF file and share it as a link

Put an Olympus or OM System raw photo online at its own address — for handing originals to an editor.

You can host:

Drop your ORF file here

Any other file works too — up to 25.0 MB, or 100.0 MB for a whole site

Free to use. Your ORF file is live at your-name.99helpers.site in about ten seconds.

What is a .orf file?

ORF (Olympus Raw Format) is used across Olympus and OM System cameras. Because these are Micro Four Thirds sensors, ORF files are smaller than full-frame raws — typically 15–20 MB — which makes them one of the few raw formats that comfortably fit within most upload limits.

What people use ORF files for

Originals from an OM-D or OM System body
Travel and street photography archives
Files delivered to a retoucher
High-resolution composite shots from the camera's own mode

What opens a ORF file

Lightroom, Camera Raw and Capture One
OM Workspace, free from OM System
darktable and RawTherapee
No browser displays ORF

How to host a ORF file

1
Drop your ORF file in
Drag it onto the box at the top of this page, or click to choose it. Files up to 25 MB are supported, and nothing is uploaded until you publish.
2
Pick an address
Type a name and we'll tell you straight away whether it's free. That becomes the link: olympus-raw.99helpers.site
3
Publish and share
Create a free account — that step exists so the file is yours to update, replace or delete — and the link is live within seconds.

The same three steps work for any file — see how file hosting works on 99helpers.com.

What happens when someone opens the link

The file downloads and opens in a raw editor. Olympus's own OM Workspace applies the camera's colour science more faithfully than third-party converters.

Why host a ORF file instead of emailing it?

Micro Four Thirds photographers often shoot large volumes, and ORF's relatively modest file size makes hosting individual originals practical in a way full-frame raw often isn't.

Worth knowing before you publish

ORF files usually fit under the 25 MB limit without conversion, unlike most full-frame raw formats.
OM Workspace is free and reproduces Olympus colour profiles that Lightroom only approximates.
High-resolution mode produces much larger ORF files — check the size on those.

ORF hosting questions

What opens an ORF file?: Lightroom, Capture One, and OM System's free OM Workspace. darktable and RawTherapee handle them at no cost too.
Why are ORF files smaller than other raw formats?: Micro Four Thirds sensors have fewer, smaller photosites than full-frame sensors, so there's less data to store. It's a practical advantage when sharing files.
Does Olympus software give better results?: For colour rendition, often yes — OM Workspace applies the camera's own profiles, which third-party converters approximate. For general editing, Lightroom and Capture One are more capable.

Put your ORF file online now

It takes about ten seconds, and you only make an account once the file is ready to go live.

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Hosting guides for related formats

Host a camera raw file Host a DNG raw photo Host a Fujifilm RAF raw file Host a Panasonic RW2 raw file Host a JPG photo Host a Pentax PEF raw file

ORF is one of over 211 formats you can host — see free file hosting for any file type for the full list, or read the hosting guides for other file types.