Free FLV to MKV Converter
Fast, high-quality video conversion for any device or platform.
FLV to MKV
Drop your file or click to browse
Drag and drop or click to select FLV file
API access: Developer API
Missing a format? Found a bug?
Your feedback shapes the future of Convert Fleet. Request features or report issues.
Share FeedbackFeatures
- High Speed – Our server-side GPU acceleration makes video conversion lightning fast.
- Lossless Audio – We keep your audio tracks clear and synced with the video.
- Advanced Codecs – Support for H.264, H.265 (HEVC), VP9, and more.
How to convert FLV to MKV?
- Upload your FLV file
- Click convert
- Download your MKV file
What is FLV?
A FLV file is a video format used for high-definition content. Converting it helps with sharing, editing, or reducing file size.
Why convert to MKV?
Converting FLV to MKV ensures your video plays perfectly on your target device, whether it's a smartphone, smart TV, or web browser.
Use Cases
- Compressing large videos for email or social media
- Converting videos for professional editing software
- Preparing content for web streaming
- Extending compatibility to older media players
FAQ
Will I lose video quality?
We use high-bitrate encoding to maintain visual fidelity while optimizing for your chosen format.
Can I convert 4K videos?
Yes, our multi-core processing handles high-resolution video conversions efficiently.
Is sound preserved during conversion?
Absolutely. We maintain the original audio tracks and synchronization.