Queue-based auto scaling for Rails, Sidekiq, Django, Celery, Node, and more. Starting at ~$0/hour.
Heroku offers their own autoscaler for free, so why use Judoscale?
Autoscaling almost always saves more than it costs, so you’re essentially getting it for free. Most of our customers see their dyno bill cut in half!
And our “White Belt” plan is free forever for any number of dynos. It’s limited to 20 autoscale events per month, so it’s perfect as a trial for your production app. Most customers keep their staging and test environments on the free plan for the convience of spinning down all their worker dynos when not in use. That’s right—you can scale your worker dynos down to zero!
Our lightweight framework adapters run async in your app, collecting web and worker queue metrics. We send these metrics to our API every 10 seconds, where our autoscaling algorithm goes to work. When we determine scaling is needed, we use the Heroku API to adjust the number of dynos.
We’ve integrated with several web frameworks to measure request queue time for web autoscaling:
Ruby on Rails Sinatra (Rack) Django Flask Node JS
For worker autoscaling, we support the following job queues:
Sidekiq Resque Delayed Job Que Good Job Celery RQ
If you don’t see support for your stack above, you can still use Judoscale! Any web application (PHP, Java, Go, etc.) can use our response time autoscaling for web dynos.
Autoscaling is crucial for apps with variable traffic or job workloads. It helps your app to gracefully handle increased load, while ensuring that you’re not overscaled with a massive Heroku bill.
We think of autoscaling as a tool to help you sleep at night, no longer worried about whether your app might be crushed under unexpected load. Autoscaling lets you focus on dev, not ops—that’s why you use Heroku in the first place!
Trying Judoscale is fast and costs you nothing. Start on our free plan, and stay there as long as you like! Check the the video below for a full walk-through.
We are developers like you. We built Judoscale (originally called Rails Autoscale) in 2016 because we were fed up with the unreliable and confusing autoscaling options available. With seven years of tackling every edge case, we’re still the best, and we’re here to stay.
Over 1,000 dev teams use and love Judoscale, and we autoscale their applications over 2.5 million times every month. We’re a small, committed team, here to help you scale your apps with ease.
The available application locations for this add-on are shown below, and depend on whether the application is deployed to a Common Runtime region or Private Space. Learn More
|Region||Available||Installable in Space|
Need a larger plan? Let our customer success team help! Learn more.
To provision, copy the snippet into your CLI or use the install button above.