Convert FLV to WEBM offline by JavaScript

Convert FLV to WEBM offline

Convert local FLV files to WEBM files offline by JavaScript in your web browser without any software downloads or file uploads!

Files:

Target:

Options:

Video size:

Video bitrate:

Frame Rate:

Aspect ratio:

Audio bitrate:

Mute:

Remove all audio streams

Show conversion logs

OUTPUT FILES:

#	File Name	File Size	Actions

How to convert FLV to WEBM offline

Choose local FLV video files, choose "WEBM" as target video format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation.

Name	FLV	WEBM
Full name	Flash Video	HTML5 Video
File extension	.flv, .f4v, .f4p, .f4a, .f4b	.webm
MIME	video/x-flv	video/webm, audio/webm
Developed by	Adobe Systems	Google
Type of format	Media container	Video file format
Introduction	Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player version 6 and newer. Flash Video content may also be embedded within SWF files. Flash Video used to be the de facto standard for web-based streaming video. Notable users of it include Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers.	WebM is a video file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video tag. It has a sister project WebP for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license.