Video information
See a video's resolution, codecs, bitrate, frame rate and duration.
Drop your file here
Processed securely and deleted within the hour.
What is actually inside the file
A video file tells you very little from the outside. The extension names the container, not the codec, and two files called .mp4 can be encoded entirely differently. This reads the streams and reports what is genuinely there.
You get the container format, duration, overall bitrate, and then per stream: the video codec, resolution, frame rate, pixel format and bitrate; and for audio the codec, channel count, sample rate and bitrate.
When this answers the question
"Why will this not play?" — usually the codec, not the container. H.265/HEVC inside an MP4 fails on plenty of devices that play H.264 in the same container quite happily. The codec field tells you immediately.
"Why is this file so large?" — compare the bitrate against the resolution. 20 Mbps at 720p is wildly more than needed and compresses enormously; 2 Mbps at 1080p is already lean and will not.
"Why is there no sound?" — the audio section shows whether a track exists at all, which distinguishes a broken file from a screen recording made without capturing audio.
Pixel format matters more than it looks
The pixel format field is worth checking when something will not play in a browser. yuv420p is what plays essentially everywhere; yuv444p and 10-bit formats are perfectly valid and refused by a great deal of consumer software.
Nothing is modified
This only reads. Your file is inspected and deleted, and nothing is written or changed.
Reading the bitrate figure
The overall bitrate is the most useful single number for deciding whether a file is worth compressing. Compare it against the resolution: roughly 8 Mbps is normal for 1080p and 5 for 720p. A file well above those figures has slack to remove and will compress substantially; one already below them is lean, and compressing it further will show artefacts rather than save much.
Common questions
Why will my video not play?
Usually the codec rather than the container. H.265/HEVC fails on many devices that play H.264 fine.
What is a good bitrate?
Roughly 8 Mbps at 1080p and 5 at 720p. Far above that compresses well; far below shows artefacts.
What does yuv420p mean?
A pixel format that plays essentially everywhere. 10-bit and yuv444p are valid but rejected by much consumer software.
Does it change my file?
No, it only reads it. Nothing is written.
Does it work on audio files?
Yes, and it reports the audio stream details.
Is my file kept?
No, it is deleted as soon as the result is returned.