FLV to WebM Converter
Convert Flash Video FLV files to WebM for browser playback, websites, web apps, learning platforms, and modern web projects.
Drop your FLV 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 FLV files
Drag and drop or select FLV 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 WebM files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert FLV to WebM?
FLV is a Flash Video format used by established web video collections, media archives, and desktop applications. Converting it to WebM creates an open web video format designed for modern browsers, websites, and online applications, ready for workflows that use the destination format.
WebM plays in current Chrome, Edge, Firefox, and Safari, plus VLC and compatible video-editing tools.
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Frequently Asked Questions
Why convert FLV to WebM?
FLV is the Flash Video format found in many established web video collections. WebM is designed for browser playback, websites, web apps, learning platforms, and open web projects.
What does Crest Convert create from my FLV file?
Crest Convert creates a standard WebM video with a widely compatible video stream and includes the first audio track when one is present.
Can I adjust the WebM quality?
Yes. Choose the visual quality before converting your FLV file to balance detail and output size for your intended use.
Can I resize the converted WebM 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 FLV to WebM?
Yes. Add several FLV videos, convert them together, and download each completed WebM file when it is ready.
How is my FLV video processed?
Your FLV file is transferred over an encrypted connection, converted securely to WebM, and automatically deleted shortly after processing. No account is required.