Codec Finder

Analyze Your Media Files

Identify codecs used in your video and audio files instantly - all processing happens in your browser.

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MKV MP4 AVI MOV WEBM MP3 FLAC WAV

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Your privacy is protected. All analysis is performed locally in your browser. No files are uploaded to any server.

Don't have a file handy? Use our guided troubleshooter instead.

Codec Troubleshooter

Instant Analysis

Analyze media files directly in your browser - no upload required

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All processing happens locally. Your files never leave your computer

Smart Matching

Recommendations tailored to the exact codecs in your file

What is a Codec?

A codec (coder-decoder) is software that compresses and decompresses digital media files. Without the right codec, your media player won't be able to play certain video or audio files. Common video codecs include H.264, H.265 (HEVC), VP9, and AV1. Common audio codecs include AAC, MP3, FLAC, and Opus.

If you're seeing error messages like "codec not found" or "unsupported format," this tool will help you identify exactly what you need to download.