Video & Audio Info Extractor
Extract complete metadata from any video file — duration, resolution, bitrate, and more.
Drop a video here or click to browse
Supports MP4, WEBM, MOV, and more
All processing happens in your browser. Your video is never uploaded.
A video file carries far more information than what you see when it plays: the exact resolution and frame rate, the video and audio codecs, the bitrate, the duration to the millisecond, the aspect ratio, and often metadata about how and when it was created. This technical detail is what you need to diagnose a playback problem, verify a file meets a platform's requirements before uploading, compare two versions of an export, or understand why a file is a certain size. This tool reads that complete metadata from a video file directly in your browser, without uploading it anywhere.
How the tool works
Select a video file and the tool reads its metadata using your browser's built-in media capabilities: duration, dimensions, and the technical properties the browser can expose about the container and streams. The file is read locally and never uploaded, so even large or private videos stay on your machine. The information appears immediately, which is useful for quickly checking a file's specs without opening a heavy video editor.
What the metadata tells you
Property Why it matters
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Resolution does it meet the platform's minimum?
Frame rate 24/30/60 — matches the source?
Duration exact length, to the millisecond
Bitrate explains file size and quality
Codec will the target device play it?
Aspect ratio 16:9, 9:16 — right for destination?
File size matches upload limits?The most immediately useful fields are resolution, codec, and bitrate, because they explain the three things people most often need to know. Resolution and aspect ratio tell you whether the file fits its destination without being cropped or rejected. The codec tells you whether a given device or platform can actually play it — a file that refuses to open is almost always a codec the player does not support. And bitrate explains file size and quality together, since it is the number that determines both, as the file-size math makes clear.
What to know about video metadata
- 1Codec is the usual reason a video won't play. When a file opens on one device but not another, it is almost always because the second device lacks the codec — H.265, for instance, is not universally supported. Checking the codec before distributing a file tells you whether it will play for your audience or need re-encoding to a more compatible format like H.264.
- 2Verify resolution and aspect ratio against the platform before uploading. A file that is the wrong resolution gets rejected or upscaled, and the wrong aspect ratio gets cropped or bordered. Reading these from the metadata first lets you fix them before wasting time on a failed upload, especially for platforms with strict vertical or minimum-resolution requirements.
- 3Frame rate should usually match the source and the destination. Mixing frame rates — a 30fps clip in a 24fps timeline — causes judder, and some platforms expect specific rates. Checking the frame rate confirms whether a file will play smoothly in its intended context or needs conversion, which is easy to overlook until the motion looks wrong.
- 4Bitrate explains both file size and quality at once. A surprisingly large file usually has a high bitrate; a surprisingly poor-looking one at high resolution usually has a bitrate too low for its pixels. Reading the bitrate diagnoses both, and pairs directly with the file-size calculation to predict or verify how big an export should be.
- 5Browser-based metadata reading has limits compared to dedicated tools. The browser exposes the common, useful properties, but deep container analysis — every stream, every embedded track, frame-accurate timing — needs a specialized media tool. For quick checks of the essentials this is ideal; for forensic-level inspection of an unusual file, a full media analyzer goes deeper.
Frequently asked questions
What information can I get about a video file?
The key technical properties: resolution and aspect ratio, frame rate, duration to the millisecond, bitrate, the video and audio codecs, and the file size. Together these tell you whether a file meets a platform's requirements, why it is a certain size, whether a device can play it, and how it compares to another export. It is the same technical detail a video professional checks before distributing or uploading a file.
Why won't my video play on a certain device?
Almost always a codec the device does not support. A file that plays fine on one device but refuses to open on another usually uses a video codec — such as H.265/HEVC — that the second device cannot decode. Checking the codec in the metadata confirms this, and the fix is re-encoding to a more universally supported codec like H.264, which nearly every device can play. Resolution or container format can occasionally be the issue too.
How do I check a video's resolution and frame rate?
Both appear directly in the metadata this tool reads. Resolution is the pixel dimensions, like 1920×1080, and frame rate is how many frames play per second, like 24, 30, or 60. Checking them matters before uploading to a platform with minimum-resolution or specific frame-rate requirements, and for confirming a file matches its intended timeline so the motion plays smoothly rather than juddering.
Is my video uploaded to read its metadata?
No. The metadata is read entirely in your browser using its built-in media capabilities, so the file is processed on your own device and never transmitted, logged, or stored. You can confirm this by disconnecting from the internet; the tool still works because no server is involved. This matters especially for video, where files are large and often private, and uploading them just to read their specs would be slow and unnecessary.
Can I see everything a professional media analyzer shows?
The common, most useful properties, yes — resolution, duration, frame rate, and the technical details the browser exposes. What a dedicated media analyzer adds is deeper container inspection: every individual stream, embedded subtitle and audio tracks, frame-accurate timing, and unusual metadata fields. For the everyday questions of whether a file fits a platform and why it is a certain size, this tool covers it; for forensic analysis of an unusual file, a full analyzer goes further.