Is my video uploaded?

No. mediainfo.js (BSD) runs as wasm entirely in your browser. Videos never leave your device.

Which formats are supported?

MP4 / MOV / MKV / WebM / AVI / M4V / FLV / 3GP / TS / MPG / OGG / Matroska — essentially everything the upstream MediaInfo C++ library supports.

What information do you show beyond codec?

Video tracks include codec, profile, resolution (W×H), frame rate, bit rate, pixel format, color space, and aspect ratio. Audio tracks include codec, channels, sample rate, bit rate, and language. Container-level info also includes format, duration, file size, and overall bit rate.

Does this re-encode or modify the file?

No. This tool is read-only. Use the Video Convert tool for codec conversion or Video Compress to reduce size (linked in related tools).

Can it handle very large video files?

mediainfo.js reads only the container header / trailer rather than scanning the whole file, so even multi-GB videos usually finish in seconds. However, files large enough to exceed your browser's memory limits cannot be handled.

Back to Video

Video Codec Info

Inspect MP4 / MOV / MKV / WebM video files and read out container, codec, resolution, frame rate, bitrate, and audio track information. Read-only, runs entirely in your browser via mediainfo.js (BSD).

videoextract

How to use

Drop your video files (MP4 / MOV / MKV / WebM / AVI / etc.) and the tool loads mediainfo.js (BSD-2-Clause) in your browser to analyze each one. You'll see container format, overall bit rate, and duration alongside per-track information: video tracks list codec, profile, resolution, frame rate, pixel format, color space, and bit rate; audio tracks list codec, channels, sample rate, bit rate, and language. Read-only — nothing is uploaded. Drop multiple files at once and each gets its own card.

FAQ

Is my video uploaded?: No. mediainfo.js (BSD) runs as wasm entirely in your browser. Videos never leave your device.
Which formats are supported?: MP4 / MOV / MKV / WebM / AVI / M4V / FLV / 3GP / TS / MPG / OGG / Matroska — essentially everything the upstream MediaInfo C++ library supports.
What information do you show beyond codec?: Video tracks include codec, profile, resolution (W×H), frame rate, bit rate, pixel format, color space, and aspect ratio. Audio tracks include codec, channels, sample rate, bit rate, and language. Container-level info also includes format, duration, file size, and overall bit rate.
Does this re-encode or modify the file?: No. This tool is read-only. Use the Video Convert tool for codec conversion or Video Compress to reduce size (linked in related tools).
Can it handle very large video files?: mediainfo.js reads only the container header / trailer rather than scanning the whole file, so even multi-GB videos usually finish in seconds. However, files large enough to exceed your browser's memory limits cannot be handled.

Related tools

Video format convert — MP4 / MOV / WebM stream copy

Change the video container (e.g. mov → mp4) without re-encoding by using ffmpeg.wasm stream copy. Works for codec-compatible combinations only. Supports batch processing and a single ZIP download.

videoconversion

Video compress — shrink size, tune CRF / preset / x264

Re-encode a video with libx264 at the chosen CRF to shrink the file size while keeping the resolution. Pick a preset to trade speed for compression. Output is mp4. Supports batch processing and a single ZIP download.

videocompress

Extract audio from video — MP3 / WAV / M4A / OGG export

Pull just the audio track out of a video and save it as mp3 / wav / m4a / ogg. ffmpeg.wasm drops the video stream and re-encodes the audio in the chosen format. Supports batch processing and a single ZIP download.

videoaudioextract

Video EXIF strip — wipe GPS / capture date metadata

Strip metadata (EXIF / GPS / capture date / etc.) from video files entirely in your browser using ffmpeg.wasm. Uses stream copy so the codec, quality and file extension are preserved (no re-encoding). Supports batch processing and a single ZIP download. Videos never leave your device.

videoEXIF