WebM for Lazys

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A wrapper around ffmpeg and AviSynth made for converting videos to WebM without having to use the command line, fork of this project.

Download it here.

Important to know:

Requires .NET Framework 4.8
Requires AviSynth (2.6.0, 32-bit)
Already includes ffmpeg
Only works on Windows

About WebM

WebM is an open, royalty-free, media file format designed for the web. WebM defines the file container structure, video and audio formats. WebM files consist of video streams compressed with the VP8 or VP9 video codecs and audio streams compressed with the Vorbis or Opus audio codecs. The WebM file structure is based on the Matroska container.

For more information about WebM, see the FAQ.

Benefits of WebM

Openness and innovation. A key factor in the web’s success is that its core technologies such as HTML, HTTP, and TCP/IP are open for anyone to implement and improve. With video being core to the web experience, a high-quality, open video format choice is needed. WebM is 100% free, and open-sourced under a BSD-style license.
Optimized for the web. Serving video on the web is different from traditional broadcast and offline mediums. Existing video formats were designed to serve the needs of these mediums and do it very well. WebM is focused on addressing the unique needs of serving video on the web.
- Low computational footprint to enable playback on any device, including low-power netbooks, handhelds, tablets, etc
- Simple container format
- Highest quality real-time video delivery
- Click and encode. Minimal codec profiles and sub-options. When possible, let the encoder make the tough choices.

WebM for Lazys features

Updates

Get the last update with just one click.

update

What can i do?

You can get and edit your video easly with the next options.

Download

Paste the url of the video you want and press enter, the download will start. You will get the best quality.

Support for +1000 sites
You can choose the default path for all your new videos
Load the new video in the app with just one click

download

Disable option in general tab to select manually the format do you want.

format

To download just a part from a youtube video add @*start-end e.g. https://www.youtube.com/watch?v=_gbUT3AOg@*5:35-5:45

Trim

Trim precisely the length, with a simple interface. You can do multiple trims if you need. Go to.. the exact frame or time you want to start the trim, also save the current frame to source path.

trim

Click over trim timestamp start or end, preview will jump to the specific frame.

Crop

Crop what is just important for you, you can see in real time the new resolution also you can set the exact size that you want or set an aspect ratio like 16:9, 9:16 and more under Set dimensions. Just move the edges with the mouse or use the keyboard.

Row keys to move
Shift + Row keys to move faster
Alt + Row Keys to increase/decrease the size
Ctrl + Row Keys to resize keeping aspect ratio
You can use mouse wheel over time line to change of frame

crop

Dynamic Crop

Follow an object on the canvas easly. Steps for a correct workflow:

Use trim to define the clip lenght (optional)
Open Crop filter and select Dynamic Crop. When it is actived will be green which means that each movement will be registered
Define the crop size. Even numbers are required

Tutorial

For this example the edition requires 30 seconds.

https://github.com/argorar/WebMConverter/assets/9936760/2cfae1bb-9bbc-43cc-9b87-3051e8dcc171

Final result

Right side was processed with dynamic crop.

https://github.com/argorar/WebMConverter/assets/9936760/9ba0fa57-a9e4-44d6-b0e2-e8dec45db3a2

Dynamic Speed

Add specific speed to just a section of video:

Use trim to define the clip lenght
Dynamic filter will be enable
Add points in the frame you want with the desire rate (a final ¯\ _ /¯ shape is recomended)
There is not limit for points

Tutorial

https://github.com/argorar/WebMConverter/assets/9936760/cd523c93-7073-4d90-b17a-275a40d1b0d8

Final result

A specific section is slowdown.

https://github.com/argorar/WebMConverter/assets/9936760/7fb63afe-8b0a-41c4-9c48-f3322ae8d4ed

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Grid

Make grid videos to compare or shared different views. You can choose between horizontal or vertical. It requires that both videos share codecs, dimensions, length. Output file is in same path as video #1. Above you can find an example.

grid

Filter

If your video looks dark, you can try with some pre-set filters. Now you can create your own filter using Advanced option, change gamma, contrast and saturation.

filter

Caption

Add text, change font, size, position, also set when it start and end.

caption

Rotate

Rotate your video to any direction with just one click.

rotate

Loop

Loop function, forward and reverse making an infinite effect.

https://github.com/argorar/WebMConverter/assets/9936760/9117aa8c-576d-4e13-9a65-b4be9890b0a3

Stabilization

Use different levels of stabilization for your clip. Left side original, right side processed. Find it in Advanced>Processing.

https://github.com/argorar/WebMConverter/assets/9936760/5ea1aa80-b39c-433f-8113-0fda8b651375

Merge and Convert

Drag and drop two or more video files inside the application, select what do you want to do. Search for the result in source path.

For merge: The group of videos must have the same encodes / dimensions.
For convert: The current settings will be apply to all video files

options

There is More that you can do

Export frames
Add subtitle
Resize
Reverse
Overlay your logo
Change the speed
Fade
Disable audio
Delay audio
Get specific filesize in final result
Get high quality video in webm and mp4 format
Interpolate, more frames to your video
Deinterlace
Denoise

Shortcut keys

Trim: Alt + t
MultiTrim: Alt + Shift + t
Crop: Alt + c
Change Rate: Alt + Shift + c

Supporters

Cybelia♡
Chibi
bouteloua
ManletPride
3nly

Changelog

Version 3.42.1

Add support for yuv420p10 with bt.709 issue

Version 3.42.0

Add merge audio, in track selector choose mix all (only two tracks sopported now) request
Expand support for HDR
Fix webms with full range color aren’t playing in Chrome issue

Version 3.41.1

Refactor mp4 codec selector

Version 3.41.0

Add HDR10 bits support
Fix darker colors in Chromium browsers
Fix horizontal and vertical rotation issue
Fix subtitles with crop
Fix subtitles issue
Fix some scenaries to update output filename
Fix Subtitles get cropped issue
Fix “Create another” button’s suffix malfunctions after 10th file issue
Now you can set size limit default, find it in General tab request
Fix for ffmpeg/ffprobe long paths not working by @DoTheSneedful
Set color range metadata to full levels for a correct color interpretation

Version 3.40.0

Now you can set default values to caption filter, find it in General tab
Allow long file names by @DoTheSneedful
Improve workflow using dynamic filters
Fix Resize window not showing in second monitor

Version 3.39.0

Add in caption filter crop zone when it exist previously
Improve preview performance
Improve shadow under dynamic points
Refactor rotate filter to ffmpeg commands
Update ffmpeg to v6.1

Version 3.38.0

Add audio amplification option
Increase cache size for preview frames
Minor changes underhood and UI

Version 3.37.0

Add remove option in multi trim. See related request
Fix target bitrate using constant mode
Fix size limit using constant mode and change rate filter. See related issue
Fix yt-dlp.exe v2024.03.10 process. See related issue

Version 3.36.0

Add option after convert Create another, this will change the output file to -2, -3,.., -n
Fix filenames when you download many clips from the same file using @* introduced in 3.32.0

Special thanks to this month supporters:

new top supporter Chibi ❤︎

To see more changelog.

License

This software is released under the MIT license.