Analysis
Inspector
Drop a video to inspect its streams, codec parameters, and container metadata.
Drop a video or click to browse
Analysed locally, nothing is uploaded
About this tool
The Video Inspector analyses your file using FFmpeg's ffprobe engine entirely in your browser. It reads the container format, every stream's codec and parameters, and all embedded metadata tags — without uploading or modifying the file.
Guide & tips
- Use Inspector before converting to understand what codec and resolution your source file uses, so you can choose the right output settings.
- The "Overall bitrate" field tells you the current data rate. Divide file size (MB) by duration (seconds) × 0.008 to estimate it manually.
- Pixel format (e.g. yuv420p vs yuv444p) affects compatibility — most web players require yuv420p.
- SAR (Sample Aspect Ratio) and DAR (Display Aspect Ratio) can differ for anamorphic video — check these if your video looks stretched.
- The raw FFmpeg output at the bottom is the full stderr log, useful for debugging unusual files.
Frequently asked questions
Container format, file size, total duration, overall bitrate, and per-stream details: codec, resolution, frame rate, pixel format, bit depth, color space, aspect ratios, audio sample rate, channel layout, language tags, and all metadata key-value pairs.
No. Inspector only reads the file header and stream metadata using FFmpeg's probe mode. No re-encoding or writing happens. The original file is untouched.
The stored resolution is the coded resolution. Some cameras record with a non-square SAR (sample aspect ratio), meaning the display resolution differs. Check the DAR (display aspect ratio) field for the actual playback size.
Some files contain more than one audio track — for example a movie with multiple language dubs, or a video with a separate commentary track. Inspector lists each stream separately with its language tag if present.