Analyzing Video Resolution and Codec Information
This resolution analyzer displays detailed technical information about your video file: width, height, aspect ratio, rotation, and codec. All processing happens in your browser—no upload required.
The tool reads the video track's encoded dimensions, display dimensions, and rotation metadata. It calculates the aspect ratio and identifies the video codec for compatibility checking.
Who Needs Video Analysis
- Video editors who receive footage and need to verify resolution and codec before importing into their editing software.
- Troubleshooters troubleshooting playback issues who check if their video uses a supported codec.
- Content creators who verify their export settings produced the expected resolution and format.
- Developers who need codec information to determine compatibility with their platform or player.
- Archivists archiving videos who document the technical specifications for their media library.
What to Know Before Using It
- Coded dimensions are the actual encoded frame size. Display dimensions might differ if the video has non-square pixels.
- Rotation metadata tells players how to orient the video. A video coded as 1080×1920 with 90° rotation displays as 1920×1080.
- Aspect ratio is calculated from the dimensions and simplified (e.g., 1920:1080 becomes 16:9).
- Codec information helps identify compatibility. H.264 is universally supported; HEVC, VP9, and AV1 have more limited support.
- This is an analysis tool, not a fix. To change resolution or codec, you'd need video conversion software.
FAQ
- What's the difference between coded and display dimensions?
- Coded dimensions are the actual encoded frame size. Display dimensions account for pixel aspect ratio and rotation.
- What does rotation mean?
- Some videos (especially from phones) are encoded sideways with rotation metadata telling players to rotate during playback.
- What's a good aspect ratio?
- Depends on the content: 16:9 for widescreen video, 4:3 for older content, 1:1 for square social media videos, 9:16 for vertical/phone video.
- What codecs are most compatible?
- H.264 (AVC) is universally supported. HEVC (H.265) offers better compression but has limited support. VP9 and AV1 are web-focused.
- Can this detect HDR or color information?
- No—this tool shows resolution, rotation, and codec only. For HDR, color space, or bit depth info, you need more advanced analysis tools.
- Will this work with all video files?
- Most common formats (MP4, WebM, MOV, MKV) work. Some exotic formats might not be readable by the browser.