Video Info Viewer
See a video's duration, resolution, aspect ratio and bitrate.
Check the details of any video file
Before you upload a video to a website, send it to a client or add it to an editing project, it helps to know exactly what you have. The Video Info Viewer reads your files locally and lists the most useful facts in a clear table: file name, size, type, duration, resolution, aspect ratio and an estimated bitrate. It also tells you whether the browser you are using can play the file.
How to use the video info viewer
- Drop one or several video files onto the upload area, or click to choose them.
- Read the details in the table. Each new file you add is appended as a new row.
- Press Copy details to copy the information as text, or Download CSV to open it in a spreadsheet.
- Press Clear to start a new list.
What each column means
- Size: how much storage the file uses.
- Type: the file’s media type, such as video/mp4 or video/webm.
- Duration: the running time in minutes and seconds.
- Resolution: the picture size in pixels, for example 1920 x 1080.
- Aspect ratio: the shape of the picture, such as 16:9 for widescreen, 9:16 for vertical phone video or 1:1 for square.
- Estimated bitrate: the average amount of data per second, calculated from size and duration. It includes audio and container overhead.
- Plays in this browser: whether your current browser can decode the file.
Why this information matters
Social networks and video platforms have rules for resolution, aspect ratio, length and file size. Checking first saves failed uploads. Bitrate is a good guide to quality: a 1080p video at 1 Mbps will look soft, while 8 Mbps or more usually looks crisp. If the bitrate is far higher than you need, the Video Compressor can make the file smaller.
The playback column helps when a file will not open on a website. If the browser cannot play it, the video probably uses a codec such as HEVC or ProRes that browsers do not support widely, and converting it to H.264 MP4 will fix the problem.
Limits
Browsers do not reveal the codec name or frame rate of a video, so those are not shown. For files the browser cannot play, only the name, size and type are available.
Private by design
The files are read by your own browser and are never uploaded, so you can safely check confidential client footage or personal videos. Because nothing is transferred, even large files of several gigabytes are listed almost instantly.
Frequently asked questions
Why is the bitrate called an estimate?
It is the file size divided by the duration, so it includes audio and container data. It is a good guide to quality but not the exact video bitrate.
Why are codec and frame rate missing?
Web browsers do not expose that information to web pages, and this tool reads files without uploading them to a server that could analyse them.
Can I check several videos at once?
Yes. Select or drop many files together. Each one gets its own row, and you can download the table as CSV.