5 Best MP4 to WebM Converters for Windows/Mac/Online

#1. TalkHelper Video Converter (Recommended)

TalkHelper Video Converter is the best MP4 to Webm converter tool that has mastered the best blend of speedy conversions and quality retention. This free download tool turns your MP4 files into high-quality WebM files that combine either VP8 or VP9 video codec with Vorbis audio codec.

It allows you to keep the original MP4 video size or resize to 480P, HD 720P, Full HD 1080P, or 4K 2160P. Also, you need not hassle adjusting MP4 to WebM conversion settings since TalkHelper sews in highly-optimized profiles that help accommodate beginners. Besides, you can turn multiple MP4 files into WebM at the click of a button without any limitations.

Pros:

• Fast and high-quality MP4 to WebM conversion
• Optimized video conversion preset
• Allows you to control the output quality level
• Supports batch WebM to MP4 conversion
• Boasts a built-in video downloader
• Supports video resizing up to 4K
• Free, offline use without limitations

Cons:

• Lacks video editing features

Supported Platforms: Windows

Best For: A simple and all-encompassing MP4 to WebM conversion process with the perfect balance between speed and quality output, thanks to the use of top-notch algorithms.

#2. HandBrake MP4 to WebM Converter

HandBrake is a free and open-source program that allows you to convert videos from almost any format like MP4 to WebM. The most outstanding feature is that this offline software simplifies the MP4 to WebM conversion process using well-thought presets; you can tailor the output WebM file for Discord, Vimeo, Gmail, YouTube, and more without much hassle.

Past the presets, you can pick your preferred video codec (VP8 or VP9) and audio codec (Opus or Vorbis) for a more personalized output. Advanced users can rotate, flip, crop, scale, and adjust video resolution, besides changing the audio bitrate, quality, channels, sample rate, and more.

Pros:

• Offers rich MP4 to WebM conversion presets
• Allows you to preview the output before conversion
• Offers customizable output settings
• Allows you to include subtitles when necessary
• Supports high-quality video upscaling and downscaling
• Free and open-source

Cons:

• Beginners may struggle with the interface

Supported Platforms: Windows, Mac and Linux

Best For: A convenient MP4 to WebM conversion process facilitated built-in presets besides customizable video/audio parameters to help you tailor the output WebM file to your specifics.

#3. FFmpeg

FFmpeg is a free and open-source software project that converts MP4 to WebM from the command line. It packs many libraries and programs that offer a smooth workflow anytime you need to turn MP4 into WebM. Apart from converting videos, FFmpeg helps you scale videos to your specific requirements. If you need that lossless quality for the output WebM file, it is advisable to use the VP9 encoder, although there is a trade-in for increased file size.

Overall, FFmpeg will give you good MP4 to WebM conversion speeds and output high-quality WebM files. However, if you are not a command line enthusiast, switching to a GUI-based TalkHelper Video Converter is highly recommended.

Pros:

• Free and open-source MP4 to WebM converter
• Excellent codec and filters support
• Makes it convenient to automate conversion tasks
• Offers video streaming and playback options
• Supports all the major video and audio formats
• Allows for integration with other converter apps

Cons:

• Lacks batch processing capabilities
• Requires a bit of a learning curve

Supported Platforms: Windows, Mac and Linux

Best For: Command-line enthusiasts who prefer to convert MP4 files into WebM format by typing commands, without the need to install any complex software.

#4. DVDFab

DVDFab is an avid video converter that offers a slew of tools like MP4 to WebM conversion. With this offline program, you can convert up to 8K UHD MP4 files into WebM format and still obtain lossless video output. Also, DVDFab can realize even faster conversion speeds if your computer supports hardware acceleration capabilities.

Amazingly, this offline tool supports passthrough conversion and helps fix metadata information before saving it in WebM format. Even better, you get to convert MP4 files partially or fully depending on preferences, not forgetting video compression options that help output an even smaller WebM without too much compromise on the original quality.

Pros:

• Convert and compress videos without quality loss
• Boasts a loaded non-linear video editor
• Offers options to upscale and enhance videos
• Supports up to 30X hardware-accelerated batch processing
• Offers video metadata correction options
• Features a DVD/Blu-ray ripper

Cons:

• May pose a bit of a learning curve for first-timers

Supported Platforms: Windows and Mac

Best For: An all-around MP4 to WebM conversion process with extra options to help you edit, upscale, enhance, and compress MP4 to WebM without quality loss.

#5. CloudConvert

CloudConvert is the best online WebM video converter tool that will help you transform MP4 files into high-quality WebM format without the need to set up complex software or be restricted to a specific platform. Besides the local MP4 files, CloudConvert helps you convert videos from direct URLs, Google Drive, Dropbox, and OneDrive, for convenience.

Unlike other online tools, CloudConvert allows you to tweak a variety of options like the video resolution (up to 4K), quality, framerate, aspect ratio, codec (VP8, VP9, AV1), besides tweaking the audio codec (Opus, Vorbis), bitrate, and volume.

Pros:

• High-quality MP4 to WebM conversions
• Features a powerful API for app developers
• Safe and secure online MP4 to WebM conversion
• Offers some customizable video and audio options
• Supports audio extraction
• Integrates popular cloud services

Cons:

• Limits you to 25 conversions per day

Supported Platforms: Web-based

Best For: A safe and secure online MP4 to WebM conversion process with total control over the output quality, resolution, and file size.