ORF to HEIC Converter

ORF to HEIC: Is HEIC the Right Target for an Olympus Raw?

ORF is Olympus Raw Format — the undeveloped sensor file an Olympus or OM System camera writes. It is a TIFF-structured container that swaps the normal TIFF signature for MMOR, IIRO, or IIRS, which is exactly why generic photo viewers refuse to open it. HEIC is the opposite kind of file: a finished, HEVC-coded picture inside an HEIF container, designed to be small and to be looked at rather than edited. Converting ORF to HEIC is therefore a one-way render, not a repackage. The short answer to the question in the heading: choose HEIC when your photos live on Apple devices and storage is the constraint, and choose JPEG when anyone outside that ecosystem has to open the file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public.

ORF vs HEIC Side by Side

When to Pick HEIC

• Your photo library syncs through iCloud and is viewed on iPhone, iPad, or macOS, where HEIC is a first-class format.
• You are trying to fit a lot of photos into limited storage and want roughly JPEG-grade quality at a smaller size.
• The file will be viewed, not re-edited — HEIC is a delivery format and gives you nothing back for editing.
• You already keep the .orf as your master, so the HEIC never has to serve as an archive.

When to Pick JPEG or Something Else Instead

• The recipient is on Windows without Microsoft's HEIF and HEVC extensions, on Android, or on a corporate machine you do not control. Use ORF to JPG.
• The image is going onto a web page. No mainstream browser except Safari decodes HEIC, so a <img src="photo.heic"> simply fails for most visitors.
• You want a lossless master you can keep editing. Use ORF to TIFF, which can carry a lossless LZW-compressed image.
• You need transparency or a lossless 8-bit render. Use ORF to PNG.

How to Convert ORF to HEIC

1. Upload Your ORF File: Drag your .orf files onto the page or click "+ Add Files". Olympus raws routinely run tens of megabytes each, so the upload is the slow part, not the encode; queue several and they all convert with the same settings.
2. Pick a Quality Preset: Under Image Compression, the Quality Preset dropdown runs Highest, Very High (Recommended), High, Medium, Low, Very Low, and Lowest, with Very High selected. This is the single control that decides how much detail survives the HEVC encode.
3. Cap the Size or Change the Resolution: Switch Image Compression to "Specific file size" to name a target in bytes, kilobytes, or megabytes — leave Auto Scale on and the converter is allowed to shrink pixel dimensions to reach it. Under Image resolution, "Keep original" is selected; Preset Resolutions, Width, Height, and Width x Height are the alternatives.
4. Convert and Download: Click Convert and save the .heic. No sign-up, no watermark.

Which HEIC Controls Actually Exist Here

This page deliberately shows a small option surface, and it is worth knowing what is absent. There is no bit-depth selector, no lossless toggle, no compression-level or encoder-effort control — those belong to other output formats and do not render for a HEIC target. The encoder is driven with a quality factor and nothing else.

That has one consequence people get wrong: the HEIC you get is 8 bits per channel. The HEIF specification allows more, and Apple's own camera pipeline writes 10-bit HDR files, but this converter does not request a higher depth. We checked the encoder path directly — feeding a 16-bit-per-channel source through the same quality-only save produces an 8-bit HEIC. So a 12-bit Olympus raw is narrowed twice on the way out: once to 8 bits, and again by the lossy HEVC encode. Treat the result as a delivery file and keep the .orf.

Frequently Asked Questions

Does converting ORF to HEIC keep the 10-bit HDR my camera captured?

No. The HEIF container can hold more than 8 bits per sample, but this page's encoder is driven with a quality factor and no bit-depth argument, so the output lands at 8 bits per channel — the same depth as a JPEG. If the wider tonal range matters, keep the .orf or render a 16-bit-capable TIFF instead of a HEIC.

Why won't my HEIC open on Windows, Android, or in Chrome?

Because native HEIC decoding is essentially an Apple feature. caniuse shows Safari 17 and later as the only major browser with support; Chrome, Firefox, and Edge have none. Windows can open HEIC once Microsoft's HEIF Image Extensions and HEVC Video Extensions are installed, which many managed machines do not have, and Android support varies by device and gallery app. If in doubt, send JPEG.

Is a HEIC really about half the size of a JPEG of the same photo?

Roughly, at comparable visual quality — that is the practical reason the format exists, and it comes from using HEVC intra-frame coding in place of JPEG's much older DCT scheme. The exact ratio depends entirely on the picture and the Quality Preset you choose, so treat "about half" as a rule of thumb rather than a guarantee, and compare the two outputs if the number matters.

Will the HEIC match the JPEG my Olympus camera produced from the same shot?

Not exactly. Your camera applies its own colour science, sharpening, tone curve, and any Art Filter you had set when it writes an in-camera JPEG. Any third-party raw converter, including this one, develops the sensor data with its own neutral defaults instead. Expect a clean but different-looking starting point; if you need the camera look, shoot JPEG alongside raw or develop the ORF in OM Workspace first.

Can I convert a whole card of ORF files at once?

Yes — queue them together and they convert with one shared Quality Preset and resolution setting. The realistic constraint is upload size and time rather than the conversion itself, because Olympus raws are large; on a slow connection, smaller batches finish more predictably. For a hub covering every ORF target in one place, see the ORF converter.

What is the difference between HEIC and HEIF as an output extension?

They are the same underlying container. HEIF (ISO/IEC 23008-12) is the format; .heic is the conventional extension for HEIF files whose image data is HEVC-coded, which is what Apple writes and what this page produces. If a particular application insists on the other spelling, ORF to HEIF writes the same kind of file under the .heif name.

Do my EXIF fields — camera model, lens, GPS — survive the conversion?

Metadata handling depends on the encoder path rather than on anything you can toggle here, so do not rely on a HEIC render as a metadata archive. If the shooting data matters to you, keep the original .orf: the raw file is the only copy guaranteed to hold the full Olympus MakerNote block along with the standard EXIF fields.

How long do you keep my uploaded ORF and the converted HEIC?

Your file is uploaded over an encrypted connection, converted on our servers, and deleted automatically after a few hours. There is no account to create, nothing is watermarked, and your photos are never shared or made public.