MKV to FLV Converter
Convert MKV video to FLV for Flash Video libraries, established web media archives, compatible players, and workflows that request FLV.
Drop your MKV files here
Up to 250MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your MKV files
Drag and drop or select MKV files from your device. You can upload multiple files at once.
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Configure Output
Choose the video quality and keep the source dimensions or reduce the output size proportionally.
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Download FLV files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert MKV to FLV?
MKV is a flexible Matroska video container used for media libraries, desktop playback, and home entertainment. Converting it to FLV creates a Flash Video format used by established web video collections, media archives, and desktop applications, ready for workflows that use the destination format.
FLV opens in VLC, compatible desktop players, video editors, and tools designed for archived Flash Video.
Frequently Asked Questions
Why convert MKV to FLV?
MKV is a flexible container popular with desktop players, media centres, and organised video libraries. FLV fits Flash Video libraries, established web media archives, compatible players, and workflows that request FLV.
What does Crest Convert create from my MKV file?
Crest Convert creates a standard FLV video with a widely compatible video stream and includes the first audio track when one is present.
Can I adjust the FLV quality?
Yes. Choose the visual quality before converting your MKV file to balance detail and output size for your intended use.
Can I resize the converted FLV video?
Yes. Use the output size slider to retain the source dimensions or reduce the width and height proportionally while keeping the original shape.
Can I batch convert MKV to FLV?
Yes. Add several MKV videos, convert them together, and download each completed FLV file when it is ready.
How is my MKV video processed?
Your MKV file is transferred over an encrypted connection, converted securely to FLV, and automatically deleted shortly after processing. No account is required.