Firesize let's you resize images on the fly with just a simple HTTP request.
You can resize and convert images without any configuration, background processes or even any code. We support a bunch of resizing options as well as conversions from and to a number of image formats. And, we even provide a CDN to cache resized images all for free.
Firesize can be attached to a Heroku application via the CLI:
callout A list of all plans available can be found pricing page.
$ heroku addons:add firesize
-----> Adding firesize to sharp-mountain-4005... done, v18 (free)
Once Firesize has been added a FIRESIZE_URL setting will be available in the
app configuration and will contain the your unique firesize url used for image
resizing. This can be confirmed using the heroku config:get command.
$ heroku config:get FIRESIZE_URL
https://j29fjskei39d.firesize.com
After installing Firesize you can go ahead and start using the just by altering your image urls.
Here's what most of your new image urls will look like. We've prepended a the firesize url and some resizing and configuration options.
<img src="https://j29fjskei39d.firesize.com/500x300/g_center/https://imgur.com/28h4fh34">
We also support image format conversion. Here's an example of converting the first frame of a gif to a png.
<img src="https://j29fjskei39d.firesize.com/500x300/g_center/png/frame_0/https://imgur.com/28h4fh34.gif">
Below are some examples of using the FIRESIZE_URL with popular
templating languages.
Erb:
<img src="<%= ENV['FIRESIZE_URL'] %>/500x300/g_center/https://imgur.com/28h4fh34">
Ejs:
<img src="<%= process.env.FIRESIZE_URL %>/500x300/g_center/https://imgur.com/28h4fh34">
Jinja2:
<img src="{{os.environ['FIRESIZE_URL']}}/500x300/g_center/https://imgur.com/28h4fh34">
Firesize activity can be observed within the Heroku log-stream by [[describe add-on logging recognition, if any]].
$ heroku logs -t | grep 'firesize pattern'
callout For more information on the features available within the Firesize dashboard please see the docs at https://firesize.com/docs.
You can also view your current usage information, configure your domain, or even whitelist specific image source locations. Visit our dashboard by visiting the Heroku Dashboard and clicking on Firesize in your app's addon list.
note Application owners should carefully manage the migration timing to ensure proper application function during the migration process.
Use the heroku addons:upgrade command to migrate to a new plan.
$ heroku addons:upgrade firesize:premium
-----> Upgrading firesize:premium to sharp-mountain-4005... done, v18 ($100/mo)
Your plan has been updated to: firesize:premium
Firesize can be removed via the CLI.
warning This will destroy all associated data and cannot be undone!
$ heroku addons:remove firesize
-----> Removing firesize from sharp-mountain-4005... done, v20 (free)
All Firesize support and runtime issues should be submitted via one of the Heroku Support channels. Any non-support related issues or product feedback is welcome at patrick@firesize.com.