Add your ORF file
Drop one or more .orf files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
ORF to PNG
Developing a .orf camera file into .png turns unprocessed sensor data into a finished image any app can open. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop ORF files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Olympus RAW to PNG image
Developing a .orf camera file into .png turns unprocessed sensor data into a finished image any app can open. An .orf file is an Olympus RAW Format photograph from Olympus and successor OM System cameras, storing the Four Thirds sensor's output before in-camera processing. The extension has covered every Olympus digital generation from early E-system DSLRs through today's OM-1 mirrorless bodies.
A .png file is a losslessly compressed raster image with full 8-bit alpha transparency, making it the standard choice for graphics that must stay pixel-perfect. Screenshots, logos, UI assets, and diagrams are the classic .png territory, since sharp edges and flat color survive without compression artifacts. For this route the practical draw is perfectly lossless, so files can be opened and re-saved indefinitely and true 8-bit (or 16-bit) alpha channel — balanced against photographic content produces files several times larger than JPEG or WebP, which is worth knowing before you commit a large batch.
Why convert ORF to PNG?
The practical trigger for this conversion is usually a mismatch: with .orf, the nonstandard TIFF header confuses generic tools that assume spec compliance. Switching to .png buys you perfectly lossless, so files can be opened and re-saved indefinitely, which is why it is the better fit for screenshots and screen recordings exported as stills. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
ORF vs PNG at a glance
| Aspect | Olympus RAW (.orf) | PNG image (.png) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | tIFF-like structure with deliberate header deviations (magic bytes IIRO/IIRS rather than standard TIFF) that trip naive parsers | uses DEFLATE compression preceded by per-scanline prediction filters (None, Sub, Up, Average, Paeth) |
| Strongest at | developing photos from Olympus and OM System Micro Four Thirds cameras | screenshots and screen recordings exported as stills |
| Weak spot | the nonstandard TIFF header confuses generic tools that assume spec compliance | photographic content produces files several times larger than JPEG or WebP |
| Metadata | eXIF is complete and Olympus MakerNotes are unusually detailed about stabilization, focus bracketing, and computational modes; XMP normally lives in sidecars | text metadata lives in tEXt/iTXt chunks and XMP can be embedded there; standardized EXIF arrived late via the 2017 eXIf chunk, so many tools still drop EXIF when writing PNG |
Pick PNG as the output
Select .png in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if PNG is selectable, the route is real and validated.
Convert on your device
Press Convert. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid PNG file. Outputs keep the original filename with the .png extension.
ORF to PNG questions, answered
Will converting ORF to PNG lose quality?
Since orf is lossless-oriented and png is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .png itself requires.
Is it private to convert ORF files here?
Yes — the .orf file is processed inside your browser tab and never uploaded. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export. Close the tab and the file is gone from memory.
Where will the PNG file work?
Every modern browser has rendered PNG with full alpha since Internet Explorer 7 fixed its transparency bug in 2006, and native OS support is universal on Windows, macOS, Linux, iOS, and Android. It is also the required format in many contexts, such as iOS app icons and favicon fallbacks.
Will the PNG file be bigger or smaller than my ORF?
It depends on the content: uses DEFLATE compression preceded by per-scanline prediction filters (None, Sub, Up, Average, Paeth). Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my ORF file?
In .orf, eXIF is complete and Olympus MakerNotes are unusually detailed about stabilization, focus bracketing, and computational modes; XMP normally lives in sidecars. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.