Tools/Compress WEBM

WEBM Compressor

Compress WEBM files online with our free WEBM compressor.
Drop your video files below to quickly compress WEBM videos and make them smaller without losing quality.

🎥 Managing thousands of product videos?⚡Transcode and transform with ease. 👉 Talk to a Media Expert

Upload an Video to Transform

Or drag your videos here

Looking to programmatically compress WEBM video?

Sign up for our free API to compress all your WEBM videos and other formats for optimal web delivery.

GET FREE API

Free WEBM Compressor & Converter

Easily convert and compress WEBM files online instantly and effortlessly.
No installation or plugins required. Just drop your video into our WEBM compressor and receive a smaller WEBM file in seconds with high-quality playback.

Why choose our WEBM compressor?

AI-Powered Video Transformations

Not only can you compress WEBM files to make them smaller for easier sharing and storage,
but you can also transform your videos with advanced features like Generative Fill, Object Removal,
and Scene Replacement—adding flexibility and creativity to your video content.

Video Enhancement

Enhance video quality with tools for 4K resolution, real-time filtering, and frame rate adjustment.
With Cloudinary’s API, you can compress WEBM files while ensuring your videos look stunning and ready for any screen.

Performance Optimization

Deliver videos in the best quality and format, adapting automatically to the user’s device, browser, and network.
With our compressors, the most efficient format is applied automatically for seamless playback.

Batch Convert videos to WEBM

Use the converter to batch convert and compress WEBM videos, or sign up for the free API to automatically convert all your videos to WEBM!

Workflow Automation

Create workflows that automate video processing, ensuring videos are formatted and ready for fast delivery right after upload.

Versatile Video Format Support

Handle all major video formats: MOV, MP4, AV1, MP4, HEVC, and more. Ensure your videos are delivered in the best format for quality and efficiency.

How to compress WEBM video

Compress WEBM videos in 3 simple steps, or sign up with Cloudinary to programmatically compress thousands of videos!

Get free apiContact Us

Add Your video Files

Upload or drag and drop your video files into the browser.

Start Compression

The compression will start to adapt to the format.

Download Compressed Videos

Once the conversion is complete, download your compressed WEBM files

Explore Beyond WEBM Compression

A woman and a golden retriever in the mountains. They're sitting, facing away from the camera while the dog noses the woman. They're surrounded by natural splendor including majestic mountains, puffy clouds, and evergreen-studded hills.
An un-cropped image overlaid with a cropping window showing how it would be cropped by Cloudinary.
An arrow pointing from the original asset to the cropped asset
A woman and a golden retriever in the mountains. They're sitting, facing away from the camera while the dog noses the woman. They're surrounded by natural splendor including majestic mountains, puffy clouds, and evergreen-studded hills.
The same asset cropped using the following settings: Aspect Ratio: 1:2. Crop Mode: Content-Aware.
Images
Videos
Crop Mode
Aspect Ratio
Original
18 MB

We’re showing a resized version of the original asset to avoid slow loading speeds. View the original.

The original asset:
JPEG
135 KB
WebP
135 KB
AVIF
90 KB
JPEG XL
94 KB
The image after being optimized using the following settings: Quality: Auto. Width: 1000px.
Original
18 MB

We’re showing a resized version of the original asset to avoid slow loading speeds. View the original.

The original asset:
JPEG
135 KB
WebP
135 KB
AVIF
90 KB
JPEG XL
94 KB
The image after being optimized using the following settings: Quality: Auto. Width: 1000px.
Images
Videos
Quality
Width
An un-cropped image overlaid with a croppingai window showing how it would be cropped by Cloudinary.
An arrow pointing from the original asset to the cropped asset
The same asset cropped using the following settings: Aspect Ratio: 1:1. Crop Mode: Content-Aware.
Images
Videos
Crop Mode
Aspect Ratio
The original image:
An arrow pointing from the original asset to the transformed asset.
The personalized image:
The original image:
The personalized image:
Product Photos
Backgrounds
Overlays
Duration
Full length video: Surfing Trip
An arrow pointing from the original video to the AI-generated preview.
Duration
A shorter video preview generated by Cloudinary's AI using the following settings: Duration: 15 seconds. Max Clips: 9. Min Clip Length: 1 second.
Videos
Duration
Max Clips
Min Clip Length
URL:
/ar_0.5,c_fill,g_auto,w_433/q_auto/f_auto/hiking_dog_mountain.jpg
cloudinary.image("hiking_dog_mountain.jpg", {transformation: [
  {aspect_ratio: "0.5", gravity: "auto", width: 433, crop: "fill"},
  {quality: "auto"},
  {fetch_format: "auto"}
  ]})
new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));
new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));
new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));
new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));
CloudinaryImage("hiking_dog_mountain.jpg").image(transformation=[
  {'aspect_ratio': "0.5", 'gravity': "auto", 'width': 433, 'crop': "fill"},
  {'quality': "auto"},
  {'fetch_format': "auto"}
  ])
(new ImageTag('hiking_dog_mountain.jpg'))
	->resize(Resize::fill()->width(433)
->aspectRatio(0.5)
	->gravity(
	Gravity::autoGravity())
	)
	->delivery(Delivery::quality(
	Quality::auto()))
	->delivery(Delivery::format(
	Format::auto()));
cloudinary.url().transformation(new Transformation()
  .aspectRatio("0.5").gravity("auto").width(433).crop("fill").chain()
  .quality("auto").chain()
  .fetchFormat("auto")).imageTag("hiking_dog_mountain.jpg");
cl_image_tag("hiking_dog_mountain.jpg", transformation: [
  {aspect_ratio: "0.5", gravity: "auto", width: 433, crop: "fill"},
  {quality: "auto"},
  {fetch_format: "auto"}
  ])
cloudinary.Api.UrlImgUp.Transform(new Transformation()
  .AspectRatio("0.5").Gravity("auto").Width(433).Crop("fill").Chain()
  .Quality("auto").Chain()
  .FetchFormat("auto")).BuildImageTag("hiking_dog_mountain.jpg")
cloudinary.image('hiking_dog_mountain.jpg').transformation(Transformation()
	.resize(Resize.fill().width(433)
.aspectRatio(0.5)
	.gravity(
	Gravity.autoGravity())
	)
	.delivery(Delivery.quality(
	Quality.auto()))
	.delivery(Delivery.format(
	Format.auto())));
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation()
  .setAspectRatio("0.5").setGravity("auto").setWidth(433).setCrop("fill").chain()
  .setQuality("auto").chain()
  .setFetchFormat("auto")).generate("hiking_dog_mountain.jpg")!, cloudinary: cloudinary)
MediaManager.get().url().transformation(new Transformation()
  .aspectRatio("0.5").gravity("auto").width(433).crop("fill").chain()
  .quality("auto").chain()
  .fetchFormat("auto")).generate("hiking_dog_mountain.jpg");
cloudinary.image('hiking_dog_mountain.jpg').transformation(Transformation()
	.resize(Resize.fill().width(433)
.aspectRatio(0.5)
	.gravity(
	Gravity.autoGravity())
	)
	.delivery(Delivery.quality(
	Quality.auto()))
	.delivery(Delivery.format(
	Format.auto())));
cloudinary.image {
	publicId("hiking_dog_mountain.jpg")
	 resize(Resize.fill() { width(433)
 aspectRatio(0.5F)
	 gravity(
	Gravity.autoGravity())
	 })
	 delivery(Delivery.quality(
	Quality.auto()))
	 delivery(Delivery.format(
	Format.auto())) 
}.generate()
new CloudinaryImage("hiking_dog_mountain.jpg")
  .resize(
    fill()
      .width(433)
      .aspectRatio(0.5)
      .gravity(autoGravity())
  )
  .delivery(quality(auto()))
  .delivery(format(auto()));
GET STARTED
GET STARTED
GET STARTED
GET STARTED

Frequently Asked Questions

Get Answers to Your Questions About Our Chat Software and Features

You can use our free online WEBM compressor to reduce file size while maintaining high video quality.
The tool automatically applies smart compression so your videos remain sharp and clear.

Converting to WEBM changes your video format for compatibility, while using a compress WEBM option reduces file size. Our tool lets you both convert and compress videos in one step for faster uploads and easier sharing.

In 2025, the most efficient way to compress WEBM videos is by using an online WEBM compressor that combines speed, high-quality output, and compatibility across devices. Our tool uses the latest optimization techniques to make WEBM files smaller while keeping playback smooth on any screen. If you need to programatically compress thousands of videos to WEBM, you should sign up and use our API.

Yes. In addition to compression, our tool lets you easily convert WEBM videos. You can switch from WEBM to MP4 for universal playback, or use WEBM to MOV for Apple devices. If you need web-ready files, converters like MP4 to WEBM, MOV to WEBM, and MKV to WEBM make it simple to optimize videos for faster streaming and sharing.