RAW Converters
ORF to JPG Converter
Turn Olympus RAW (.orf) photos into JPG — instantly with the camera's own embedded preview, or with a full RAW decode. Runs 100% in your browser: no upload, no limits, free.
Your files never leave your device — conversion runs locally in your browser.
To convert ORF to JPG, drop your Olympus RAW files above — they are processed right in your browser and never uploaded. Fast mode hands back the full-size JPEG your camera embedded at capture; Full decode demosaics the sensor data with LibRaw in WebAssembly. Olympus has written 12-bit ORF since 2003, from the E-1 right through to the OM-1.
Honest limits
- Full decode caps at about 40 megapixels (24 on phones); bigger files, or files past 50 MB, convert in Fast mode automatically.
- Fast mode uses Olympus's embedded preview — 3200 px wide on an OM-1, where Full decode gives 5220.
- Batches convert one file at a time to keep browser memory safe.
Past these limits? Fast mode handles any file instantly, desktop browsers go further than phones — and Media Moana converts at scale on hosted infrastructure.
How it works
Drop your files
Drag ORF files into the drop zone, click to browse, or paste from the clipboard. Whole folders work too.
Convert locally
Each file is decoded and re-encoded to JPG right in your browser — no upload, no queue. Adjust quality or size first if you like.
Download
Save converted files one by one, or download the whole batch as a ZIP. Originals stay untouched on your device.
About the formats
ORF — Olympus RAW
ORF (Olympus RAW Format) comes from Olympus and OM System cameras — the OM-D E-M1/E-M5 series, OM-1, OM-5 and PEN models. ORF stores 12-bit Micro Four Thirds sensor data with the camera's art-filter and colour settings as metadata, plus an embedded JPEG preview.
JPG — JPEG
JPEG (.jpg) is the most universally supported image format in existence. Every browser, OS, app, printer, government form and photo lab accepts it. It uses lossy compression tuned for photographs, supports EXIF metadata, and at quality 85–95 is visually indistinguishable from the source for most photos — the safe default whenever compatibility matters.
Inside Olympus ORF
From the E-1 to OM System
ORF has been Olympus's RAW format since the 2003 E-1 and carried straight through the brand's change of name to OM System. It covers the Four Thirds DSLRs (E-1 to E-5), the OM-D line — E-M1, E-M5 and E-M10 and their Mark II, III and IV bodies — the PEN and PEN-F cameras, the OM-1, OM-1 Mark II and OM-5, and even the Tough TG-5, TG-6 and TG-7 compacts.
12-bit, while the rest of the industry went to 14
Canon, Nikon and Sony all moved their RAW formats to 14-bit sensor data. Olympus and OM System never did: a 2022 OM-1 records the same 12 bits the 2003 E-1 recorded, which buys smaller files and faster burst rates at the price of a little headroom when you pull shadows up hard in an editor. Converting doesn't care either way — Full decode reads the 12-bit data and writes standard 8-bit JPG.
The preview is not full resolution
Olympus embeds a reduced preview rather than a full-size JPEG. An OM-1 file whose sensor frame is 5184×3888 carries a 3200×2400 preview, so Fast mode returns 3200 pixels across and Full decode returns the whole 5220-pixel-wide sensor area. If you are converting Olympus files for print or for editing, that is the one setting worth changing.
Frequently asked questions
Is this safe? Do my photos get uploaded?
No upload happens — ever. Converting ORF to JPG runs entirely inside your browser using WebAssembly. Your files never leave your device, nothing is stored on any server, and the tool even keeps working if you go offline after the page loads. That's also why there are no file size limits, no queues and no sign-up.
Does converting ORF to JPG lose quality?
JPG uses lossy compression, so technically yes — but at the default quality setting the difference is invisible for normal viewing and printing. You control the quality slider: higher values mean larger, more faithful files. Your original ORF files are never modified.
Can I convert multiple ORF files at once?
Yes — drop in as many files as you like. Because conversion happens on your own computer instead of a server, there is no per-file fee, no daily cap and no waiting in line. Files are processed one after another, and you can download each JPG file as it finishes or grab the whole batch as a single ZIP.
Why do my converted photos look different from Lightroom?
RAW files have no fixed look — every program renders them differently. This tool gives you two modes: Fast mode extracts the full-size JPEG preview your camera itself rendered, so colours match exactly what you saw on the camera screen (film simulations and picture styles included). Full decode mode demosaics the sensor data with LibRaw using camera white balance — neutral output meant for further editing.
What's the difference between Fast mode and Full decode?
Fast mode pulls the camera-rendered JPEG embedded inside every RAW file — it is instant, and the colours are your camera's own rendering. It's the default, and the safe choice on phones. Full decode processes the actual sensor data (demosaic, white balance, colour transform) in WebAssembly, which takes a few seconds per file but works even when a file has no usable embedded preview, and renders at the sensor's native resolution. To keep your browser from running out of memory, very large files (around 40 megapixels and up — 24 on phones, or anything past 50 MB when the resolution can't be read) are automatically converted in Fast mode even when Full decode is selected; you'll see a note on the file when that happens.
What happens if my browser can't decode a file?
Nothing is ever uploaded — there is no server-side fallback, so the no-upload promise has zero exceptions. In the rare case a RAW file can't be decoded in your browser (a corrupted embedded preview, an unusual format variant, or a file too large for browser memory), the failed file simply shows a suggestion to try Media Moana, our hosted media platform built for converting and managing large RAW libraries on managed infrastructure. Whether you follow that link is entirely up to you; on this site your files never leave your device.
Why does my Olympus file say 16-bit when the sensor is 12-bit?
Those are two different numbers. An ORF is a TIFF underneath, and its header declares 16 bits per sample — the size of the box each value is stored in. Olympus's own ValidBits tag records how many of those bits carry data, and from the E-1 to the OM-1 that number is 12. Full decode reads the real 12 bits and writes standard 8-bit JPG.
Is there a file size or quantity limit?
There is no hard limit. Server-based converters cap uploads because your files consume their bandwidth and CPU; here converting ORF to JPG happens on your machine, so the only practical limit is your device's memory. Desktop browsers comfortably handle very large files and big batches.