M4V to FLV Converter
Convert M4V video to FLV for Flash Video libraries, established web media archives, compatible players, and workflows that request FLV.
Drop your M4V 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 M4V files
Drag and drop or select M4V 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 M4V to FLV?
M4V is an MPEG-4 video container commonly associated with Apple devices, QuickTime, and compatible media libraries. 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 M4V to FLV?
M4V is commonly used in Apple-focused media libraries and compatible video workflows. FLV fits Flash Video libraries, established web media archives, compatible players, and workflows that request FLV.
What does Crest Convert create from my M4V 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 M4V 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 M4V to FLV?
Yes. Add several M4V videos, convert them together, and download each completed FLV file when it is ready.
How is my M4V video processed?
Your M4V file is transferred over an encrypted connection, converted securely to FLV, and automatically deleted shortly after processing. No account is required.