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Supports: DIVX
DivX is video; HEIF is a still-image container. This converter decodes one frame — or a set of frames — out of an MPEG-4 Part 2 video stream and rewraps each one as a HEIF image, using the same HEVC intra coding that gives HEIF its size advantage over JPEG. The conversion is worth understanding before you run it, because the two formats sit at opposite ends of the compatibility spectrum: DivX is a legacy codec almost nothing plays natively, and HEIF is a modern one almost nothing displays natively. What follows is the specification detail for both, then the steps.
| Property | Value |
|---|---|
| What it is | Lossy video codec, MPEG-4 Part 2 Advanced Simple Profile |
| Underlying standard | ISO/IEC 14496-2 (MPEG-4 Visual) |
| Origin | Released in 1999 as an unauthorised repack of Microsoft's MPEG-4 codec; standards-based from version 4 |
| Usual containers | AVI (.avi) and DivX Media Format (.divx) |
| Colour | 8 bits per channel, typically 4:2:0 chroma subsampling |
| Audio | Yes — a separate track, commonly MP3 or AC-3 |
| Transparency | None; every decoded frame is fully opaque |
| Still-image capability | None; frames must be decoded and re-encoded to become images |
| Native browser support | None |
| Property | Value |
|---|---|
| What it is | Still-image container, not a codec |
| Standard | ISO/IEC 23008-12, Part 12 of the MPEG-H suite |
| Published | March 2015 |
| Image coding | HEVC (H.265) intra coding; the container is extensible to other codecs |
| Bit depth | Up to 16 bits per sample |
| Transparency | Yes — an alpha plane is part of the format |
| Multiple images per file | Yes — bursts, image sequences, thumbnails and derived images |
| Size versus JPEG | Nokia, which developed the format, reports JPEG needs about 139% higher bitrate for equal quality — roughly 2.39x the bytes |
| Extension family | .heif is the generic extension; .heic denotes the HEVC-coded flavour Apple ships |
| Native browser support | Safari 17.0 and later only, about 15% of global usage per caniuse |
.divx file onto the page or click "+ Add Files" to browse. Several clips can be queued and processed with identical settings.12.5 is 12.5 seconds in. Switch to Multiple Screenshots to sample the clip instead, choosing an interval from Capture Rate.A single still picture per captured frame. HEIF is capable of holding image sequences, but the .heif output here is a still, so the decoder seeks to the moment you specify and encodes that one frame. Choosing Multiple Screenshots produces several separate HEIF stills rather than one animated file. If you want motion, DivX to GIF produces a looping animation instead.
Because a HEIF image is HEVC-coded, and HEVC carries patent licensing obligations that most browser vendors have declined to take on. Per caniuse, Safari 17.0 and later on macOS and iOS is the only browser family that displays HEIF natively — around 15% of global browser usage. Chrome, Firefox, and Edge show nothing at all. That is why AVIF and JPEG XL exist as royalty-free alternatives aimed at the same job.
.heif and .heic?They are the same container family. .heif is the generic extension for ISO/IEC 23008-12 files, while .heic specifically signals that the images inside are HEVC-coded — the flavour Apple made the iPhone default. In practice most .heif files in the wild are also HEVC-coded, so the two behave identically. If you specifically need Apple's extension, use DivX to HEIC instead.
No, and it is worth being clear about why. HEIF can store up to 16 bits per sample, but DivX video is 8 bits per channel with 4:2:0 chroma subsampling. The extra headroom has nothing to fill it — you cannot recover colour precision the video codec never recorded. The bit-depth advantage matters for RAW photography and HDR pipelines, not for frames pulled out of a DVD-era rip.
Not sharper, but smaller at the same quality. Nokia's own figures put JPEG at roughly 2.39 times the file size of HEVC for equivalent quality, so a HEIF still of a given frame lands at well under half the bytes of a comparable JPEG. Detail that the DivX codec already discarded — blocking around fast motion, ringing on hard edges — is gone from the decoded frame and no still format brings it back.
The format supports an alpha plane, but this conversion cannot produce one. DivX has no transparency to carry across, so every decoded frame is fully opaque and the resulting HEIF is a solid rectangle. Transparency would have to be masked in afterwards in an image editor.
On Windows you generally need a codec extension from the Microsoft Store before Photos will decode it, because the HEVC decoder is not bundled with every edition of Windows. Android support depends on the manufacturer and version. If the file needs to open reliably on someone else's machine, convert the frame to JPG for a small universally readable file, or PNG when the frame contains text or hard edges. Going the other way, HEIF to JPG rescues files you have already received.
Only inside an Apple-centric workflow, or where storage genuinely dominates. HEIF's real wins — 16-bit samples, alpha, bursts, derived images — are features a single 8-bit video frame simply does not use, which leaves file size as the only benefit and compatibility as a substantial cost. For a frame you intend to email, upload, or post, JPG remains the pragmatic choice.
It travels over an encrypted connection, is processed on our servers, and is deleted automatically after a few hours. There is no sign-up and no watermark on the output, and files are never shared or made public. For a long DivX rip the practical constraint is upload size and time rather than the frame extraction, which only has to decode up to the timestamp you asked for.