Take Full Control of Your Media Optimization
Optimize existing images, control user uploads, and handle video and audio optimizations, done instantly as you upload to WordPress and without using your server.
Subscription Type
Number of Websites
Free
Forever
Cimo Free Includes
1 Site
All Access Pass
1 Site
All Access Pass Includes
30-Day 100% Money Back Guarantee

Optimize your existing images in one go
Cimo lets you optimize your entire media library with Bulk Optimization, with the option to restore originals if needed. We built this so even bulk optimization doesn’t rely on servers.
- Optimize your entire media library
- No re-uploading required
- Restore original images anytime
- Filter and skip selected files

Control user uploads before they reach your site
Cimo optimizes uploads even from your website users and visitors, so oversized files never reach your server. We built this because you can’t control what users upload.
- Optimize uploads from frontend forms
- Prevent oversized files from users
- Runs before files reach your server
- Works with popular form plugins: ACF, Gravity Forms, Fluent Forms, WS Forms, Ninja Forms, Contact Form 7, and more

Optimize videos and audio files
Media files are optimized during upload, so large files never hit your server. Get same privacy-first, instant and client-side approach as our image optimizer. This keeps uploads fast and reduces storage usage.
- Reduce file sizes on upload
- Automatic MP4 & MP3 conversion
- Automatic resize to a lower resolution or bitrate
- Prevent large media from hitting server
- Works automatically during upload

Load images instantly with placeholders
Show a gray placeholder with a subtle strobe effect as a preview while the full image loads so pages feel instant, even on slow networks. Also called LQIP, these improve the perceived performance and gives users a smooth visual experience while the full image downloads.
- Improve perceived load speed
- Show preview before full image loads
- Works automatically

Our Users Love Cimo
Tried this plugin, and wow, images optimized like magic, no waiting, no server load, no bandwidth, no external services. Unlimited & free, quality intact.
Jhimross Olinares
WordPress Contributor
If this doesn’t become one of your default plugins to use on all your client sites, I don’t know what would.

Remkus de Vries
Within wordpress
[My] personal favorite is the new plugin called “Cimo” when used with Google Chrome, it converts to webp on the go as you upload images in Wp library.

sundeckstudio
Web Design agency
This plugin is great, works exactly how it says in the description, does instant conversion to WebP and optimization without any other hassle or API keys or even server side rendering. Already using it on couple of sites.
Mustafa Sheikh
Professional Product (UI & UX) Designer
This plugin caught my attention because it’s focused on ease of use and just working. It doesn’t use your web server, and it doesn’t ship the image off over a CDN to some other server.
The unoptimized image never actually makes it into the media library. You’re just getting WebP images uploaded, so you don’t have that problem of a hidden library of large files. The images were added quickly and were automatically converted to WebP format.

David McCan
software developer & site builder
Very happy to give this a well deserved Five Stars (★★★★★) as it’s as ingenious as it is simple. The final touch of perfection is that it works seamlessly with the Advanced Custom Fields (ACF) Image & Gallery field types. Big thanks to Benjamin Intal for this fine work!
Dave Barr
WordPress Web Developer
[An] interesting image optimization plugin different than others.
It optimizes images instantly during upload (before they are even added to the Media Library). The main difference of this plugin from classic WordPress image optimization plugins is that it performs all image optimization in the user’s browser (client-side) rather than on the server or through external API services.
Creates zero server load since optimization happens on the user’s device.

WPFixFast
Developer
The thing that makes Cimo amazing, and different from every other image compression plugin, is that it does all the work in the browser, before the image is uploaded. It converts it to WebP, and then uploads that.

Topher DeRosia
Web Developer
It is fantastic plugin. I asked the dev of Cimo to add max resolution support for images and they delivered. Since then, I am using it as default on every new website I build. Even if someone gives me free lifetime access to any popular paid image plugin, I will still prefer Cimo over them on any new website.
Install it, set max width or height, and only the compressed image will touch your server.
Best part – completely free.
I install this before uploading any image and never worry about image optimization.

fossistic
Freelance Web Designer
