Image CDN · transformation on the fly

Your images optimized
and delivered from
a simple URL.

Transforms, optimizes, and intelligently caches your images for fast websites and applications using simple and robust URL parameters.
15-day trial
·
no credit card
·
0.50 $ / Go
Request URL
https://cdn.cloudphoto.io/demo/img?width=800&format=auto&filters=sharpen10&sig=8g8M1Z…&url=https://samples-photos.com/soccer.jpeg
800px
width
AVIF
auto format
−94%
weight
Original
resize 400
filter · gray
pixelate 20
Five operations · one URL
height=600 · fit=crop · filters=grayscale · filters=pixelate20 · gravity=entropy · format=auto · sig=
84–99%
less weight per image
WebP · AVIF
formats served automatically
Multi-region
CDN + global image processing
Zero SDK
everything goes through the URL
Live demo

Five transformations.
One single URL.

Resize, crop, apply a filter, pixelate — just by stacking parameters in your URL. No server-side library, nothing to deploy.
Original
Click each URL to open the preview generated live by CloudPhoto.
Features

Everything you need for fast images, everywhere.

A complete transformation engine, driven by the URL. Nothing to install, nothing to maintain.

Smart resize & crop

Fit, gravity, content-aware crop, and Retina DPR. The right image, the right crop, for every screen.

Next-gen formats

WebP by default, AVIF, or automatic format: each browser receives the lightest format it supports.

Filters & effects

Grayscale, sepia, blur, sharpening, pixelate, vignette, rotation… chained in a single URL.

Responsive images

One srcset, one URL. Each width is generated and cached on demand, served based on the visitor's screen.

HMAC signed URLs

SHA-256 signature: no one can generate unauthorized variants. Your costs stay under control.

Global CDN + cache

Multi-region processing and one-month cache: your visitors receive the closest image, instantly.
How it works

Live in three minutes.

01

Point to your image

Any source URL: Amazon S3, your server, an existing site. Nothing to migrate, nothing to re-upload.
02

Stack your parameters

Width, format, filters… directly in the URL. Compatible with all languages, no dependency.
03

Sign & serve

Signed URL, cached on the CDN, delivered in WebP/AVIF at the optimal format. That's it.
Responsive images

Responsive, in a single tag.

One srcset, one URL per width. The browser selects the right image for the screen; each variant is generated and cached on demand.
HTML
<img
  src="https://cdn.cloudphoto.io/demo/img?width=800&format=auto&sig=uU2L6vmZboINLwJuY2QjYA&url=https://example.com/photo.jpg"
  srcset="https://cdn.cloudphoto.io/demo/img?width=400&format=auto&sig=ADu3o1_Sv5GGJnD6j2HNEA&url=https://example.com/photo.jpg 400w,
          https://cdn.cloudphoto.io/demo/img?width=800&format=auto&sig=uU2L6vmZboINLwJuY2QjYA&url=https://example.com/photo.jpg 800w,
          https://cdn.cloudphoto.io/demo/img?width=1200&format=auto&sig=IQy7IwejC3YxegClY784zQ&url=https://example.com/photo.jpg 1200w"
  sizes="(max-width: 600px) 100vw, 800px"
  alt="Property photo">
Performance

Images up to 99% lighter.

Less weight means faster LCP, better SEO, and a lower bandwidth bill. cloudphoto compresses and converts every image to the optimal format automatically.
−94%
average weight
1 month
cDN cache
0
server code line
A typical product photo
Original · JPEG
2,41 Mo
WebP · width 800
186 Ko
AVIF · auto format
143 Ko
2.41 MB → 143 KB, without changing a line of your HTML.
Pricing

One price. Pay for what you deliver.

No subscription, no tiers, no commitment. You only pay for actual CDN transfer delivered to your visitors.
Pay-as-you-go
0.50 $
per delivered GB
15-day free trial
No credit card. Cancel anytime.
Start free trial
Billed monthly on actual egress.
Everything included
Unlimited transformations & filters
All formats (WebP, AVIF, JPG, PNG)
Global multi-region CDN + cache
HMAC signed URLs (anti-abuse)
Image storage included
CDN dashboard & logs in real time
Signed URLs prevent uncontrolled variant generation—your costs stay predictable.
Frequently asked questions

Your questions, our answers

No. Everything is managed via the URL. cloudphoto works with any language or framework—you simply build a URL with your parameters.

Pay-as-you-go: you only pay for actual CDN transfer delivered to your visitors, per GB. No subscription, no tiers, no commitment. Transformations and storage are included.

Yes. Point to any source URL: Amazon S3, EC2, shared hosting, public website. Nothing to migrate.

Each URL is signed with HMAC-SHA256 using your token's secret. It's impossible for a third party to generate unauthorized variants—your costs stay under control.

15 days, no credit card. You get access to all features. At the end, you switch to pay-as-you-go if you want—otherwise, nothing happens.

Ready to deliver faster images?

Join the platforms that optimize millions of images with cloudphoto. 15-day free trial, no credit card required.
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