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Media Converter

Convert audio and video files directly in your browser. No uploads, no installs — powered by FFmpeg.

♫ Audio Analyzer LUFS, BPM, Key, Spectrum ⇄ Reference Comparer A/B level-matched ⚙ Media Converter Audio & video formats

Drop files here

or click to browse — video & audio

Audio & video · Up to 300 MB per file
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Add a single file or a whole batch. Each result gets its own download.

Engine loads with your first fileFFmpeg · on your device · Licences & source
01

Choose the right operation.

Compatible mode creates standard codecs. Lossless remux preserves the original streams when the destination container supports them.

02

Stay in control.

Video encoding takes time, especially on mobile devices. Cancel at any point and retry. Start with a short clip for large projects.

03

Keep the original.

Every output is a new file. Converting a lossy source to WAV or FLAC preserves its decoded audio; it does not restore lost detail.

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100% Private — Your files never leave your device
All audio processing runs entirely in your browser using Web Audio API and WebAssembly. Nothing is uploaded to any server — ever. Your files, your hardware, your privacy.
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Completely Free — No limits on usage
Use every tool as often as you want. No sign-up, no accounts, no usage caps, no watermarks. File-size limits are shown in each tool to keep your browser responsive.
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Professional Grade — Built by audio engineers
EBU R128-style loudness metering with ITU-R BS.1770 K-weighting and gating, plus True Peak, BPM, key, stereo width and frequency spectrum analysis. True Peak, tempo and key are estimates.
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Open Source — See exactly how it works
The original Audio Analyzer is open source under the MIT license. Read the DSP code, fork it, build on it. View on GitHub →