What is a .265 file?
A .265 file is a raw H.265 (HEVC) video elementary stream, without a container.
- Did you know
- Apple’s HEIC photo format, the iPhone’s default camera output since 2017, stores its images using HEVC compression, so billions of photos are saved with this video codec.
- H.265 is also known as HEVC and as MPEG-H Part 2, and like H.264 it is published jointly by the ITU-T and ISO/IEC MPEG.
- HEVC replaced H.264’s fixed 16x16 macroblocks with coding tree units up to 64x64 pixels, letting it compress large flat regions far more efficiently.
- HEVC supports resolutions up to 8192x4320, and every Ultra HD Blu-ray uses it as its video codec.
- A raw .265 stream is just the coded video with no container, so timing and audio must be added by wrapping it in something like MP4 or Matroska.
- What Analyser shows you
- Read the container, codec, resolution, and frame rate of MP4, MOV, MKV, AVI, and WebM video, step through frames, and extract the audio track. Raw H.264/H.265 elementary streams (.h264/.265) are remuxed to MP4 in-browser so they play too.
- Open a .265 file
- Drag a .265 file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.