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Supports: ORF
ORF (Olympus RAW Format) is the proprietary raw file written by Olympus and OM System cameras — it holds the unprocessed 12- or 14-bit sensor readout rather than a finished picture. WebP is Google's web image format that does lossy and lossless compression plus transparency, and is smaller than the same image saved as JPEG or PNG. Converting ORF to WebP renders that raw sensor data into a compact, ready-to-publish image. One thing to know up front: rendering a raw bakes the white balance, exposure, and tone curve into the output, so you trade the raw's editing latitude for a small, universally readable file.
| Property | Value |
|---|---|
| Full name | Olympus RAW Format |
| Type | Proprietary camera raw (unprocessed sensor data) |
| Vendor | Olympus / OM Digital Solutions (OM System) |
| Container basis | TIFF/EP-derived structure with Olympus MakerNote tags |
| Bit depth | 12 or 14 bits per channel (vs 8-bit for JPEG) |
| Color / latitude | Full sensor latitude; white balance set in software, not baked in |
| Typical contents | Raw mosaic data, an embedded JPEG preview, and EXIF/MakerNote metadata |
| Edits in software | Olympus Workspace, Adobe Lightroom / Camera Raw, Capture One, RawTherapee, darktable |
| Best for | Archiving the original capture and editing before export |
| Property | Value |
|---|---|
| Full name | WebP |
| Type | Web raster image (lossy or lossless) |
| Vendor | Google (open-sourced) |
| Compression modes | Both — lossy (VP8-based) and lossless |
| Transparency | Yes — alpha channel in both lossy and lossless modes |
| Bit depth | 8 bits per channel |
| Size vs PNG | Lossless WebP is about 26% smaller than PNG |
| Size vs JPEG | Lossy WebP is 25–34% smaller than JPEG at the same SSIM quality |
| Browser support | ~96% of users globally; Safari 14+ on iOS, Safari 16+ on macOS |
| Best for | Photos and graphics published on the web |
.orf file onto the page or click "+ Add Files." You can queue several Olympus raws and convert them with the same settings.Yes. An ORF stores the unprocessed 12- or 14-bit sensor readout, so white balance and exposure stay adjustable while it is still raw. Rendering it to WebP bakes those decisions into an 8-bit image and discards the extra tonal headroom. Edit the raw in software first (Lightroom, Capture One, RawTherapee) and convert once you are happy with the look — or keep the original ORF as your master and treat the WebP as a publish-ready copy.
For photographs, lossy WebP almost always wins: at the same perceived quality it is 25–34% smaller than JPEG, which keeps galleries fast to load. Reserve lossless WebP for images with hard edges, flat color, or transparency — logos, screenshots, line art — where it runs about 26% smaller than the equivalent PNG. The "Lossless?" toggle in Advanced Options switches between the two.
Every ORF carries a camera-generated JPEG thumbnail, but it reflects the in-camera settings at the moment of capture and is usually lower resolution than the full frame. Converting the actual raw data lets you apply your own white balance and exposure and render at full resolution, then compress with WebP — a better result than extracting the baked-in preview.
WebP can carry EXIF and ICC color-profile chunks, so capture details like shutter speed, aperture, ISO, and lens can travel with the file. Olympus-specific MakerNote tags (Art Filters, in-body stabilization data) are not part of the standard WebP container, so keep the original ORF if you need that proprietary metadata later.
WebP is supported by browsers covering about 96% of users worldwide, including Chrome, Firefox, Edge, and Opera. Safari added WebP in iOS 14 and macOS 11 for lossy images, with full lossless and animated support from macOS 13 (Safari 16). For an audience on much older devices, render to JPG instead with our ORF to JPG tool.
It depends on the scene and the quality preset, but WebP consistently undercuts JPEG. In our testing, a 20-megapixel Olympus ORF rendered at the "Very High" preset produced a lossy WebP roughly a third smaller than the same frame exported as a high-quality JPEG, with no visible difference at normal viewing size. If you already have PNGs to shrink, PNG to WebP covers that direction.
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.