100% Free Tool
Media Converter
Convert video and audio files directly in your browser. No uploads, no server processing, no watermarks. Your files stay on your device the entire time.
Drop a video or audio file, or click to browse
Video: MP4, WebM, MOV, MKV, AVI · Audio: MP3, WAV, FLAC, AAC, OGG, M4A — up to 2 GB
Why Use Our Media Converter?
Convert between popular video and audio formats without uploading your files to any server.
Complete Privacy
All processing happens locally using FFmpeg WebAssembly. Your files never leave your device - zero data sent to any server.
Video & Audio
Convert between video formats, extract audio from videos, or convert between audio formats - all in one tool.
Full Control
Adjust resolution, frame rate, quality, bitrate, sample rate, and channels. Choose from high, medium, or low quality presets.
How to Convert Media Files
Three simple steps to convert any video or audio file.
Add Your File
Drag and drop or click to browse. Supports video (MP4, WebM, MOV, MKV, AVI) and audio (MP3, WAV, FLAC, AAC, OGG, M4A) up to 2 GB.
Choose Output Format
Select your target format and adjust settings like resolution, quality, and bitrate to match your needs.
Convert & Download
Click convert and download the result. See a before-and-after file size comparison to verify your settings.
Supported Conversions
- Video to Video: MP4, WebM, MKV, AVI with H.264 or VP9 encoding
- Video to Audio: Extract audio as MP3, AAC, WAV, FLAC, OGG, Opus, or M4A
- Audio to Audio: Convert between any supported audio format
- Quality control: High, Medium, or Low presets with custom bitrate options
- No limits: No rate limits, no watermarks, no account required
Frequently Asked Questions
Is my file uploaded to a server?
No. All conversion happens in your browser using FFmpeg WebAssembly. Your file never leaves your device, ensuring complete privacy.
What is the maximum file size?
The maximum is 2 GB, limited by WebAssembly memory constraints. For files over 500 MB, conversion may use significant browser memory. For very large files, try our server-based video converter.
Why is WebM conversion slower than MP4?
WebM uses the VP9 codec which is more computationally intensive to encode, especially in a browser environment. MP4 with H.264 is significantly faster for in-browser conversion.
What do the quality presets mean?
Quality presets control the CRF (Constant Rate Factor) value used during encoding. High quality (CRF 18) produces the best visual quality with larger files. Medium (CRF 23) balances quality and file size. Low (CRF 28) prioritizes smaller file size with reduced quality.
Can I extract audio from a video?
Yes. Upload a video file and select any audio format (MP3, AAC, WAV, FLAC, OGG, Opus, or M4A) from the "Extract Audio" section. The video track will be stripped and only the audio will be converted.
Is this tool really free?
Yes, completely free with no limitations. Since all processing happens in your browser, there are no server costs. No watermarks, no account required, and no rate limits.
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