FLV to WEBM Converter
Convert your FLV video into high-quality WEBM format with 100% Secure processing. No files are uploaded to our servers.
or drag and drop your FLV files here
Popular FLV Conversions
Direct 1-Click Fast PresetsHow to Convert FLV to WEBM?
Convert your video files in seconds with zero software installation and 100% Secure local processing.
Select FLV Video
Click the "Choose FLV Files" button or drag and drop your FLV video file into the drop zone.
Configure Target & Settings
Verify that WEBM is selected. Adjust optional parameters (such as frame rate), then click "Convert to WEBM".
Instant Secure Download
Once the 100% Secure conversion finishes locally in memory, click "Download WEBM" to save your file immediately.
FLV (Flash Video)
Source FormatWhat is a FLV file?
FLV is a container file format used to deliver digital video content over the Internet using Adobe Flash Player. Converting FLV to modern MP4 or WebM ensures playback across all contemporary devices.
How to open a FLV file?
Plays in VLC or convert to universal MP4 here.
WebM Video
Target OutputWhat is a WEBM file?
WebM is a royalty-free, open media file format designed specifically for the web by Google. Based on the Matroska profile, it delivers high-performance video compression using VP8, VP9, or AV1 video codecs alongside Vorbis or Opus audio.
How to open a WEBM file?
WebM files play natively in modern web browsers (Chrome, Edge, Firefox, Opera) and media players like VLC.
Your Videos Never Touch Our Servers
Video files often contain personal moments, family memories, or confidential business recordings. SM Convert processes every video locally using your computer's secure memory and WebAssembly engine. No uploads, zero cloud servers, complete privacy.
100% Client-Side
Executed locally in RAM
Instant Audio Extraction
Extract MP3/WAV in seconds
Unlimited & Free
No subscription fees or quotas
Other FLV Video Converters
Convert Other Video Formats to WEBM
Frequently Asked Questions (FAQs)
How can I convert videos to MP4 or WebM online?
Simply drag and drop your video file (MOV, MKV, AVI, etc.) into the converter above, choose MP4 or WebM as your output format, and click "Convert Video". The conversion processes locally on your computer with zero server uploads.
How can I extract audio (MP3/WAV) from my video?
Select your video (MP4, MOV, WebM, etc.), choose MP3 or WAV in the format dropdown, and click convert. The audio track is separated and saved locally in seconds.
What is the maximum video file size I can convert?
Because processing runs locally with 100% Secure execution without server uploads, files under 200 MB to 500 MB convert with optimal speed and performance depending on your device's available RAM.
Are my video files stored on any cloud server?
Never. Your video files are processed strictly inside your device's secure memory using WebAssembly and Web Audio APIs. They are never transmitted over the internet or saved to any external hard drives.