SWF to WebM Converter
Convert Shockwave Flash SWF videos to WebM for browser playback, websites, web apps, and open web projects. Start free with no account.
Drop your SWF 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 SWF files
Drag and drop or select SWF 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 SWF to WebM?
SWF is an Adobe Flash format used for animated presentations, interactive media, and archived web video. 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 SWF to WebM?
SWF is a Shockwave Flash format used for web animations, presentations, and interactive media collections. WebM is designed for browser playback, websites, web apps, learning platforms, and open web projects.
What does Crest Convert create from my SWF file?
Crest Convert plays your SWF file the way Flash Player would and records the animation and its sound as a standard WebM video. Vector artwork is drawn at up to 854 by 480 pixels, so small Flash stages come out sharp. When the SWF stores a video stream, that stream is converted directly instead.
What does the WebM show for games, menus and buttons in a Flash file?
The WebM video shows the movie playing on its own, without clicks or key presses. Many Flash cartoons open on a Play button; the recording starts the animation for you. Games and menus that wait for input show the screen they wait on.
Can I adjust the WebM quality?
Yes. Choose the visual quality before converting your SWF 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 SWF to WebM?
Yes. Add several SWF videos, convert them together, and download each completed WebM file when it is ready.
How is my SWF video processed?
Your SWF file is transferred over an encrypted connection, converted securely to WebM, and automatically deleted shortly after processing. No account is required.