WebM is an audio-video format designed to provide royalty-free, open video compression for use with HTML5 video. The project's development is sponsored by Google Inc. As one of the biggest video sharing websites, YouTube allows users to upload videos for extensive sharing. It now offers WebM videos as part of its HTML5 player experiment. All uploaded files with resolutions from 720p and above are encoded to WebM in 480p and 720p, and other resolutions will follow. WebM video provides high definition video quality but is much smaller than other video formats like MKV, MP4. Thus it would be convenient for you to upload file to YouTube after converting MP4 to WebM format.

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AnyMP4 WebM Converter is also the best MP4 to WebM Converter software, which has powerful converting function to convert MP4 to WebM with super fast converting speed and high output quality. With this software, we can enjoy the MP4 video on YouTube and HTML 5 sites without any limitation. How to convert MP4 to WebM and even HD WebM video? This guide would show you the detailed steps of converting MP4 to WebM with this software. Now you can free download AnyMP4 WebM Converter software and install it on your computer, then you can open the main interface and start to run the program.

• Convert almost all 4K / HD / SD video formats, to MP4, AVI, FLV, WMV, MOV, MKV and so on
• Have a long device support list, including iPhone/iPad/iPod, Samsung, LG, Huawei, PS4, Wii and more
• Cut the video and remove unwanted part, add watermark, merge video clips into a file and adjust video effect
• Scale the resolution when you convert low resolution videos to higher resolution and remove the noise

Step 1. Add MP4 video to the program

Click 'Add File' button to add MP4 video to the program or you can click 'Add File' drop-down arrow and select 'Add Folder' option to add multiple MP4 videos to the program.

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Step 2. Choose output format 'WebM'

Click 'Profile' drop-down arrow and open the 'Profile' list, then you can input 'WebM' to the quick search box to choose 'WebM – WebM Video (*.webm)' as output format.

Step 3. Customize the video effect

This MP4 to WebM Converter allows you to edit the added videos, you can click 'Effect' button to open the 'Edit' window and then start to adjust the video effect like brightness, contrast, saturation, hue and volume by dragging the corresponding scroll bar to change the value. And press 'Clip' button to enter the 'Clip' column, here you can cut off the video length by dragging the slide bar to change the start and end time under the preview window. Then you can click 'Crop' button to crop the video area size by adjusting the yellow region in the video image. And add watermark to the video in the watermark column by checking 'Enable watermark' option.

Step 4. Convert MP4 to WebM

Click 'Convert' button and you can start to convert MP4 to WebM. This program also supports batch conversion; all the added videos would be converted into WebM video formats only in one conversion.

What is MP4

MP4 is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. A separate hint track is used to include streaming information in the file. The only official filename extension for MPEG-4 Part 14 files is .mp4.

WebM 'File Import Failure' in Premiere Pro can be solved by converting WebM to MPEG-2 or ProRes.

'I'm having difficulty importing a 4K WEBM video into Premiere CC 2018. I have installed the Fnordware Plugin which allows the import but there's considerable lag and frame drops when scrubbing around the video in Source and even worse with clips in the timeline. Any suggestions as to what is.'

'I have a bunch of .webm files that I would like to edit using Adobe Premiere CC, but cannot open them. Is this possible? and if not can we please have a patch to allow this ubiquitous format to be used?'

WebM is an open web media project headed up by Google, aimed at developing 'a high-quality, open video format for the web that's freely available to everyone.' The format has been around for quite several years. Currently, part of all of the top web browsers and media players have native support for WebM. If not, you can also use third-party software or plugin to playback WebM files. However, it's still a painful experience when you tried to use WebM files in Premiere Pro (CC 2020 included).

Why WebM files cannot be imported into Premiere Pro (as a normal video file)?

Till now, WebM has not been added to the official supported format list of Adobe Premiere Pro. In fact, the WebM container is based a profile of Matroska. It initially supported VP8 video and Vorbis audio streams. In 2013, it was updated to accommodate VP9 video and Opus audio. You should know that codec format decides whether you can load a video or audio file successfully or not, while WebM is just a container format So even though you are importing a WebM video, the encoded file (VP9 video codec) wrapped in the WebM box is not supported, which leads to file import failure.

Download and Install the WebM Plugin for Adobe Premiere

The good news is that Fnord Software has announced a free plugin for Adobe Premiere Pro CC that adds support for Google's WebM video format that contains both VP9/Opus and VP8/Vorbis codecs. The plugin also added WebM support to other parts of Adobe Creative Cloud including Adobe Media Encoder and more. However, the plugin is only suitable for Premiere Pro CC (2018) 12.0 - CC (2020) 14.0 on Windows computers. Moreover, Adobe's privacy policy is not applicable to the use of this app, extension or integration.

Therefore, if you're using Premiere Pro CC on Mac or older version of Premiere Pro, or the installed WebM plugin doesn't work/have problems, transcoding WebM file is the most effective yet easiest solution recommended by us.

100% Working Solution to Fix 'Can't Import WebM to Premiere' Error:

- Convert WebM to Premiere supported MOV H264, MP4, ProRes...

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The Major cause for 'can't Import or edit WeBM video rile smoothly' is incompatible Codec or format, which can be easily solved by transcoding WebM to other Premiere Pro friendly formats with third-party software like EaseFab Video Converter (available for both Windows and Mac users). The program is an all-in-one video processing tool, with video converter and editor embedded in. You can do some simple cutting, trimming and merging before converting WebM files. And MPEG-2 and ProRes is the most recommended format for editing videos in Premiere Pro on both Windows and Mac.

EaseFab Video Converter - The One-click Way to Convert Videos for Adobe Premiere and more.

• Accepts nearly all types of videos, regardless of video formats, codecs and resolutions.
• Transode or pass-through media files to that supported by Adobe Premiere Pro.
• Easy editing experience: cut, crop, merge, add effects/watermark, add subtitles...
• Completes video conversion and processing in three steps.

Tutorial: How to Decode WebM to Premiere Supported Codec/Format?

PS: The following conversion process takes EaseFab Video Converter Windows version for an example. The way for transcoding WebM for Premiere Pro CC2020/2019/2018 on Mac (macOS Catalina) is almost the same.

Step 1. Download and launch EaseFab Video Converter on Windows PC or Mac. Click Add Video button to import your WebM video. Dragging and droppping works too. (Note: batch conversion is supported, so you can several videos to the program to convert at a time.)

Step 2. Click Profile pull down list, move mouse cursor to Editing Software and then select MOV (encoded by H.264 codec) or Final Cut Pro X (encoded by ProRes codec) for Adobe Premiere Pro. MPEG-2, WMV are good choices as well.

Note: The H.264 MOV can preserve image quality with the smallest file size. The ProRes can preserve the best image quality and provide better performance when editing in Premiere but ProRes files typically need ten times as much storage of H.264-based files.

Step 3. Finally, click Convert button to start transcoding WebM to H.264 or ProRes codec for Premiere.

When the conversion task is finished, click Open button to get the exported files and then import the output file into Adobe Premiere Pro CC 2020/2019/2018 to do further editing.

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Conclusion:

The major cause that Adobe Premiere Pro CC doesn't work with WebM videos is that the file format is not supported. Therefore, transocding WebM file using EaseFab Video Converter is the the most effective yet easiest solution recommended by us. Besides converting videos, EaseFab Video Converter is also able to perform some video editing tasks, including cutting, trimming, merging, adding special effects, and more. The operation is really beginner-friendly.