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Supports: ARW
An ARW is a Sony Alpha RAW photo — a single, high-bit-depth still straight off the sensor — and HEVC (H.265) is a video codec. A bare .hevc file is a raw H.265 elementary stream: just the encoded video, with no container, no audio track, and no index. Converting one isn't a like-for-like swap — there is no video inside an ARW, so the tool renders the photo and writes a short, silent H.265 stream that holds that single frame on screen for a set duration. None of HEVC's motion-compression advantage applies to one still, and a raw .hevc stream is harder to play than almost any other target. The tables below explain both formats. Most people who land here actually want a normal photo — ARW to JPG is the right tool for that — and if you genuinely want the still as a playable clip, ARW to MP4 writes H.264 inside a real container that plays everywhere, which beats a raw HEVC stream for almost every use.
| Property | Value |
|---|---|
| Full name | Sony Alpha RAW (camera RAW still image) |
| Based on | TIFF/EP (ISO 12234-2), with Sony extensions |
| Released | 2006, with the Sony α100 DSLR |
| Payload | Unprocessed Bayer sensor data — one frame, no audio |
| Bit depth | 12- or 14-bit per channel (ARW 2.3 onward is 14-bit) |
| Resolution | 24-61 megapixels depending on the Alpha body (α7R series ~61 MP) |
| To view | Must be demosaiced and tone-mapped by a RAW decoder |
| Best for | Editing latitude and archival master files (a digital negative) |
| Property | Value |
|---|---|
| Full name | High Efficiency Video Coding (HEVC), a.k.a. H.265 |
| Standard | ITU-T H.265 / ISO/IEC 23008-2 (MPEG-H Part 2) |
| Published | June 2013 (ITU-T); finalized by ISO/IEC late 2013 |
| Developed by | Joint Collaborative Team (ITU-T VCEG + ISO/IEC MPEG) |
What .hevc is |
A raw H.265 elementary stream — codec data only, no container |
| Audio | None — a raw elementary stream carries no audio track |
| Profiles | Main (8-bit, 4:2:0), Main 10 (10-bit, used for HDR) |
| Efficiency | ~25-50% smaller than H.264/AVC at the same quality (motion video) |
| Licensing | Patent-encumbered — pooled across MPEG LA, HEVC Advance, Velos Media |
| Playback | Patchier than H.264; raw .hevc won't open in most consumer players |
The tool demosaics the RAW, renders it to a normal image, then encodes that one frame as an H.265 stream that displays for the Image Duration you set. The result is a freeze-frame: no panning, no animation, and no sound. An ARW is one photograph, not footage, so there is no motion to carry over — and that matters here, because HEVC's whole reason to exist is compressing motion between frames. With a single still there is no inter-frame redundancy to exploit, so you pay HEVC's slow, heavy encode and get none of its benefit. To build a real moving sequence you need several ARWs merged together; to add audio, convert first and add a track in any video editor.
Because the source is a still image and a raw .hevc stream has nowhere to put sound. Two things stack here: an ARW is a photograph with no audio to begin with, and a bare H.265 elementary stream is video-only by definition — it is just the encoded codec data, not a container like MP4 or MKV that can multiplex an audio track alongside it. For image sources the tool hides the audio codec menu entirely and writes a silent stream. If you need sound, convert the ARW first, then mux your clip and an audio file together in a video editor or with a tool like FFmpeg.
.hevc an odd target for a single photo?Three reasons. First, no gain: wrapping a still in HEVC adds no detail — it is the same rendered pixels, just encoded with a slow, patent-encumbered codec built for video. Second, lost resolution: a 24-61 MP ARW is scaled down to a standard video frame, so most of the sensor data is discarded by design. Third, playback: a bare elementary stream has no container or index, so many players refuse to open a .hevc file directly even when they decode H.265 fine inside an MP4. If your aim is the picture, ARW to JPG is far better; if you need a playable clip, ARW to MP4 gives you H.264 in a real container.
Yes, substantially, and it is inherent to the conversion rather than a tool flaw. An ARW stores 12- to 14-bit, unprocessed sensor data that must be demosaiced and tone-mapped to become viewable; that render bakes in white balance, exposure, and color, so the RAW editing latitude — the whole reason to shoot ARW — is gone once it is a video frame. On top of that, a 24-61 MP RAW is scaled down to a standard video frame, discarding most of the resolution. The HEVC encode adds its own lossy compression on top. Always keep the master ARW — the HEVC file is a throwaway delivery file, not an archive.
.hevc different from H.265 inside an MP4 or MOV?The codec is the same — H.265 — but the packaging is not. A .hevc file is a raw elementary stream: codec data with no container, no audio, and no timing index, which is why most phones, browsers, and media players won't open it directly even though they decode H.265. An MP4 or MOV wraps that H.265 stream in a proper container that can carry audio, metadata, and seek points, so it plays far more widely. If you want H.265 you can actually play, ARW to MOV wraps it in a QuickTime container; for the broadest compatibility, ARW to MP4 writes H.264, which every device decodes without a licensing or codec-support gap.
For almost every purpose, JPG or MP4. To view, print, share, or upload the photograph, ARW to JPG gives a universal image that opens everywhere, and for lossless 8-bit output use ARW to PNG. If you genuinely need the still as a playable clip, ARW to MP4 produces an H.264 file that plays on phones, browsers, and modern editors without HEVC's licensing and playback friction. Reach for a raw .hevc stream only when a specific encoder pipeline or device explicitly demands an unwrapped H.265 elementary stream — for anything else it is the least convenient of the options.
Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after the conversion — no sign-up, no watermark, never shared or made public. In our testing, a single 24-megapixel ARW converted at the default 5-second duration produced a short, silent H.265 elementary stream that VLC and FFmpeg-based players opened without trouble, but that several consumer players refused to load until it was re-wrapped in an MP4 container.