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Supports: PNG, APNG
This page wraps a still PNG in an H.265/HEVC video stream: your picture is held on screen for a duration you choose, encoded at one frame per second, and written out under a .hevc filename. People reach for it when a destination refuses anything that is not a video file — a signage player, an ad-ingest form, a CMS field — and the asset they have is a graphic. HEVC is a codec rather than a container, so it is worth knowing exactly what lands in your downloads folder before you convert.
.hevc File From This Page Really IsHEVC ("High Efficiency Video Coding") is a codec, published by the ITU-T as Recommendation H.265 and first approved in April 2013; the edition currently in force is dated January 2026. A codec always has to sit inside a container, and a bare .hevc extension does not name one. Our encoder resolves that by writing a Matroska container under the .hevc filename — the most permissive wrapper for H.265, and the one that keeps frame timing intact.
The practical consequence is a one-step fix rather than a problem: if a player refuses the download, rename clip.hevc to clip.mkv and open it again. Not a byte of the file changes; the extension is the only thing most players inspect. If you would rather not rename anything, PNG to MKV produces the same Matroska file already labelled correctly.
| Property | Value |
|---|---|
| Codec standard | ITU-T H.265, "High efficiency video coding" |
| First approved | April 2013; edition in force January 2026 |
| Container written here | Matroska, under the .hevc filename |
| Codec entries on this page | H.265 and HEVC — two labels for the same encoder |
| Audio track | None; a still has no audio and this page renders no audio controls |
| Alpha channel | Not carried — transparency is flattened before encoding |
| Encode frame rate | 1 fps, B-frames disabled |
| Browser playback | Just over 90% of tracked users have at least partial support (caniuse): Safari 13+, Chrome 107+, Firefox 137+, Edge — mostly dependent on hardware decoding |
| Rename target for stubborn players | .mkv |
PNG is the opposite kind of object: a still-image format with an alpha channel and no notion of time. Everything time-related in the output — length, frame rate, letterbox padding — is invented by the converter, because the source carries none of it.
| Property | Value |
|---|---|
| Specification | W3C PNG Third Edition, a W3C Recommendation dated 24 June 2025 |
| Compression | Lossless |
| Sample depth | 1 to 16 bits per sample |
| Image types | Greyscale, truecolor, indexed-colour, greyscale + alpha, truecolor + alpha |
| Animation | Only via APNG (acTL/fcTL/fdAT chunks), which the same spec now defines |
| Duration | None — a still PNG has no timeline for HEVC to inherit |
| Accepted on this page | .png and .apng |
Yes. HEVC and H.265 are two names for one codec: the ITU-T publishes it as Recommendation H.265, and the ISO/IEC side of the same joint project calls it High Efficiency Video Coding. The Video Codec control on this page lists both "H.265" and "HEVC" for exactly that reason — picking either one runs the same encoder.
.hevc file open in VLC or QuickTime?Because the extension does not tell a player what container to expect. We verified this in our own encoder configuration: an output extension of .hevc is mapped to the Matroska muxer, so the bytes you download are a Matroska file with an unusual name. Rename it to .mkv and it opens normally in VLC, MPV, and anything else that reads Matroska.
No, and nothing can make it move. One image contains one picture; the encoder simply repeats that picture for the duration you set. If you upload several PNGs and leave Merge strategy on "Merge images", you get a sequence of stills — each held for the duration — which is a slideshow, not motion within a frame.
They are flattened onto the Background Color before encoding. No mainstream video codec, HEVC included, carries an alpha channel, so there is no "keep transparency" setting to look for. White is preselected for image sources; switch it to Black or any of the other colours in the dropdown if white edges would look wrong wherever the clip is going to play.
No. This page renders no audio controls at all — the whole audio group is hidden for still-image sources, because there is nothing to encode. If your destination insists on a soundtrack, add one in a video editor after downloading, or start from footage that already has audio.
An unchanging frame is close to the best case for any inter-frame codec: the first frame is encoded in detail, and everything after it is a prediction that costs very little. So going from 3 seconds to 10 seconds adds far less than 3× the bytes. Resolution and Quality Preset move the size much more than duration does — HEVC honours the preset properly, unlike the older codecs on our MPEG and RealVideo pages.
Your PNG's own pixel dimensions, with one caveat: images are normalised before encoding with the long edge capped at 4096 pixels, so anything larger is scaled down to fit. If your destination needs an exact frame size, set it explicitly under Video resolution — "Fixed Resolutions" gives you a precise width × height, and your Background Color pads whatever does not fill the frame.
Choose HEVC when you know the destination decodes H.265 and you want the smaller file. Choose MP4 when you do not know, or when the file has to work everywhere — PNG to MP4 produces H.264 in a properly named MP4 container, which is still the safest thing to hand to an unknown player, upload form, or older TV. If you already have an HEVC clip and need to widen its reach, HEVC to MP4 goes the other way.