EaseUS VideoKit

An all-in-one video toolbox for you to convert, compress, and edit videos.

  • Convert video & audio to various formats
  • Compress videos to save space (Windows only)
  • Edit videos flexibly with amazing features (Windows only)
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How to Convert FLV to WebM Easily [6 Ways]

Melissa Lee updated on Mar 15, 2023 | Home > Video Converter Tips

WebM is considered an ideal format for modern web usage instead of local use. The web is smoothly and quickly accessible with this format, irrespective of your devices, such as tablets, phones, PC, and others. On the other hand, the FLV format is becoming universal for online video downloading. So, if you need to share downloaded videos on a website, it's advisable to convert FLV to WebM.

It is straightforward to get the FLV to WebM converters but choosing the right one is tricky. This post will present you with the popular 6 FLV to WebM converters on Windows, Mac, and online. The detailed tutorials are offered. 

How to Convert FLV to WebM on Windows - 2 Ways

Many FLV to WebM converters are available on Windows PC. Among those options, two powerful converting apps are noteworthy. This part will talk about these converters one by one, and you can follow the steps to convert your videos. 

Tool 1. EaseUS Video Converter

EaseUS Video Converter tops the list of the FLV to WebM converters on Windows PC, as it's secured and robust. It can help you do any conversion-related tasks in a snap because of the availability of almost all popular audio/video formats, including MP4, WebM, MKV. As the software promises, its GPU acceleration technology helps you convert the files 30 times faster than using other apps. Additionally, it can even keep the video quality of the source video.

Its function of keeping video quality enables you to process high-resolution videos with this software. For example, it can convert 1080P, 4K, and 8K videos without losing quality. This converter also offers you many options to customize the output video freely, and you can adjust the framerate, bitrate, encoder, etc.

Key Features:

  • Best free video converter
  • Convert your files at 30X faster speed
  • Keep the 1:1 quality of the converted videos
  • Merge files during the batch conversion
  • Offer a built-in media player to preview the video or audio

For converting videos safely and efficiently, EaseUS Video Converter must be the best choice. Click on the button to download it now. No registration is required.

  Free Download
Windows 11/10/8/7
  Free Download
macOS 10.13 or later

Method of Converting FLV to WebM on Windows with EaseUS Video Converter:

Step 1. Download EaseUS Video Converter. Open it and select "Video Converter" from the three options. Then, hit "Choose Files". You can import the file from the computer. 

choose video converter

Step 2. When you see the listed video in this tool, hit "Settings" > "WEBM". At the same time, choose the desired Quality and Resolution. If you are going to apply more options, choose "Edit". 

To change the saving path, hit "Save to". Now, you can start your mission by clicking "Convert All".

video webm format

Step 3. After a while, you are supposed to find the converted file from "Finished". Meanwhile, to play, delete, and rename this file, you can right click it to choose the related function. 

output webm

Tool 2. Prism Video Converter

When you need a steady and all-in-one converting app for Windows, then Prism Video Converter should be your way to go. This is a universal and multimedia video and audio converter with an easy-to-use interface. Besides converting those videos downloaded from the Internet, it can even assist you in converting DVDs to digital files.

Whether you need to convert or compress your video files, it will help you complete the task within several minutes. You won't have to face the quality loss during transformation as the software supports up to 4K resolution. It's straightforward to import source FLV videos to this software as it supports the drag-and-drop feature and allows you to add the video directly from Google Drive or Dropbox.

Prism Video Converter FLV to WebM Windows


  • Support converting FLV to WebM in a bulk
  • Get excellent video quality with advanced lossless encoding
  • Support updating videos' metadata
  • Upload and share converted videos on various social platforms

Here is how to convert FLV to WebM via Prism Video Converter:

Step 1. Download, install and launch the Prism Video Converter on your PC. Click on "Add File(s)" to upload the FLV file.

Step 2. Choose the output format as ".webm" from the drop-down menu and select the destination folder.

Step 3. Now, press the "Convert" button and wait until the conversion ends. Then, the converted WebM file will be saved on your PC.

Method of Converting FLV to WebM on Mac - 2 Ways

Although FLV to WebM converters on Mac are less than on Windows PC, you can still use two excellent converters: HandBrake and Movavi Video Converter.

Tool 1. HandBrake

Besides being available for Linux and Windows, HandBrake also works efficiently on your Mac. This open-source video converter provides you with many features that let you carry out the conversion process easily. Not only can it convert FLV to WebM, but it also supports conversion between many input and output formats.

Also, HandBrake assists in basic editing. For instance, you can rotate or crop videos as well as apply filters or add subtitles to them. The only drawback is its non-friendly interface, which is why you need to follow a tutorial.

Handbrake Convert FLV to WebM Mac


  • Support video encoding with advanced technology
  • Static and live video preview feature
  • Help you restore old and low-quality videos
  • Offer various video filters, like grayscale, denoise, etc.

Let's know how to convert FLV to WebM by using HandBrake:

Step 1. Open the HandBrake software on your Mac. Click on the "File (Open a Single Video File)" button to import your video. 

Step 2. Select the output format as WebM from the drop-down menu of "Format." You can also choose any built-in preset. Now, press on the "Add to Queue" button.

Step 3. Choose the destination folder by clicking "Browse." Then hit the "Start Encode" button to start the conversion.

Tool 2. Movavi Video Converter

Other than HandBrake, Movavi is another FLV to WebM video converter that can be used on Mac. Besides converting your files at a fantastic speed, it can also perform video compression without compromising quality. The software can help you efficiently export your audio, video, or images in any of your required formats, including AVI, RAW, WMV, MP4, MOV, etc.

Having this Mac converter, you will get such a fantastic multimedia handling experience that you have never had ever. It provides editing features, i.e., adding subtitles, applying effects, rotating, trimming, and so on. So, these features allow you to edit your files the way you want.

Movavi Video Converter FLV to WebM Mac


  • Clean and easy-to-understand interface
  • Video stabilization feature
  • Find and add subtitles to your videos
  • Upscale the video quality using artificial intelligence

Here is a guide for converting FLV to WebM with Movavi Video Converter:

Step 1. Open the Movavi Video Converter on your device. Click on "Add Media" to upload your FLV file.

Step 2. Select output format as "WebM" from the available list, or you can use the search box. Choose the destination folder from the "Save to" option.

Step 3. Now, you can do the editing if required. Then click on the "Convert" to start the converting process.

How to Use FLV to WebM Converter Online - 2 Ways

For users who don't want to use the desktop converting software, the two online FLV to WebM converters in this part are both helpful.

Tool 1. Converter365

Being an online converter, Converter365 allows you to complete your FLV to WebM conversion without downloading any software. Although this online tool is free to use, it will enable you to convert files without quality loss. In addition to videos, this online tool also supports converting audio, image, document, etc.

To your benefit, you won't have to pay a single penny for this conversion. It is accessible to everyone, and you can do an infinite number of conversions daily. Moreover, its user-intuitive interface helps even a non-technical person to use it without effort. But you should notice that you can convert a file with a size of up to 200MB.

Converter365 FLV to WebM Online


  • Batch conversion feature (convert ten files at once)
  • Variety of input and output formats
  • Support downloading from any platform via URL

Let's have a look at the FLV to WebM tutorial via Converter365:

Step 1. Open the Converter365 website on your browser.

Step 2. Click on the "Add Files" button and import the FLV file from your device.

Step 3. Choose output format as "WebM" from the "Convert to" list. Next, you may change the audio or video codec through the "Settings" button.

Step 4. Click on the "Start Conversion" option, and then you will get a URL to download a zip file of the output videos.

Tool 2. Online Converter

If you want free online conversion services, including FLV to WebM conversion, you must go for this Online Converter. This multi-purpose and universal converter provides you with an extensive range of formats to convert your files, and it does not require downloading the software.

Moreover, you can also cut a clip from your video by adjusting the settings. This tool is secure enough to use as it deletes your files from its servers within 24 hours. 

Online Converter FLV to WebM Online


  • Convert any audio, video, image, and many more
  • Offer you an option to delete your file from servers instantly
  • The conversion process is straightforward
  • Share converted files on other platforms directly

Let's know how to convert FLV to WebM using Online Converter:

Step 1. Open the Online Converter website on your browser. Click on "Choose File" to upload the FLV video.

Step 2. Press the "Convert" button, and it will start uploading. Then, you will be taken to the next window.

Step 3. Here, choose the "Download Now" option to save the converted WebM file. Or you can share the file to any of the supported social platforms.


People often need to convert their videos from FLV to WebM as small-size WebM videos are suitable for streaming purposes. After the conversion, you can upload the videos to YouTube effortlessly.

This post introduced many FLV to WebM converters available on Windows, Mac, and online, as well as guided you through converting FLV videos with them. Among all those converters, EaseUS Video Converter is the most suitable one for Windows users as it's rich-featured and reliable. Click on the following button to download it now.

  Free Download
Windows 11/10/8/7
  Free Download
macOS 10.13 or later

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