What is it?

Image manipulation server
Image caching server
Image SSL proxy
Open source!

What does it do?

Asset loading http, file, mongo, redis etc
Strips exif data
Strips icc data
Converts to webp
Crops
FitIn
Resizes, No Upscale
Grayscale, brightness, contrast
Facial detection, feature detection
Smart cropping

contactzilla.com

SSL Proxy
Caching - 6 gig of profile pictures
Resizing
Cropping

Using It

Simple URL manipulation e.g.
http://thumbor/unsafe/150x400/smart/http://server/image.jpg
PHP - using composer:

"99designs/phumbor": "dev-master"

$server = 'http://127.0.0.1:8888';
$secret = '';
$url = 'http://remote-server.com/image.jpg';

$thumbor = Thumbor\Url\BuilderFactory::construct($server, $secret);

// Just output the original image
$src = $thumbor
    ->url($url)
    ->addFilter('strip_icc')
    ->resize(120,120);

echo "<img src=\"$src\"";

Resampling

460 x 307

96kb

39kb

->addFilter('strip_icc')
->addFilter('format(webp)');

32kb

30kb

->addFilter('strip_icc');

Face Detection

Meta URL

http://thumbor/unsafe/meta/smart/{URL}

Requires OpenCV

/debug

Smart Crop

$thumbor
    ->url($url)
    ->smartCrop(true)
    ->resize(150,400);

$thumbor
    ->url($url)
    ->resize(150,400);

Security

HMAC with SHA1 signing

http://thumbor/unsafe/300x200/smart/path/to/image.jpg

Becomes:

http://thumbor/12345678923456789012345678/300x200/smart/path/to/image.jpg

Requires secure key specified in config.

Running it

Python Tornado - single port/process
Scale out by running multiple instances
Reverse proxy to it using nginx (or Varnish!)

upstream backend  {
  server 127.0.0.1:8000;
  server 127.0.0.1:8001;
  server 127.0.0.1:8002;
  server 127.0.0.1:8003;
}

server {
  listen      443;
  server_name thumbor.mysite.com;

  # SSL certificates to use on secure connections
  ssl on;
  ssl_certificate	/etc/nginx/ssl/certificate.crt;
  ssl_certificate_key   /etc/nginx/ssl/server.key;

  # Forward requests to thumbor.
  location / {
    proxy_pass         http://backend;
    include            /etc/nginx/proxy.conf;
  }
}