FLV→MKVConverter
Convert your FLV files to MKV format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert MKV to FLV insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert FLV to MKV
Upload Your File
Drag & drop your FLV file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to MKV" and wait a few seconds for processing.
Download
Download your converted MKV file instantly. No registration needed.
Why Convert FLV to MKV?
Converting FLV to MKV can improve compatibility, enable editing in specific software, or optimize file size for your target platform.
About FLV and MKV
What is FLV?
FLV (Flash Video) was the dominant web video format during the Flash era. While Flash is deprecated, many archived videos still exist in FLV format.
What is MKV?
MKV (Matroska Video) is a flexible, open-standard container format that supports unlimited video, audio, subtitle, and metadata tracks in a single file.
Frequently Asked Questions
How do I convert FLV to MKV?
Upload your FLV file using the converter above, then click "Convert". Your file will be processed and you can download the converted MKV file immediately. The entire process takes just seconds.
Is it free to convert FLV to MKV?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my FLV file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for FLV to MKV conversion?
You can convert FLV files up to 100MB in size. This covers most common use cases for video files.
Can I convert multiple FLV files at once?
Yes, you can upload and convert multiple FLV files. Each file will be converted to MKV format individually for the best quality results.