Judoscale Beta

The fastest and most powerful autoscaler for Heroku. Starting at $0/mo.

Calm and predictable autoscaling

Running a production application can be stressful, but it doesn’t have to be. Autoscaling avoids the slowdowns and timeouts that keep you up at night.

Heroku metrics screenshot with caption “Goodbye, Heroku errors!”

The fastest autoscaler for Heroku

You count on your autoscaler to catch slowdowns before they become a problem. Judoscale was built to respond in seconds. You simply won’t find a faster autoscaler for Heroku.

Screenshot of Judoscale with caption “Slowdowns trigger immediate autoscale”

Supports web and worker dynos

Heroku’s autoscaler only supports autoscaling web dynos, but that’s only half of your app. Judoscale will autoscale your worker dynos so your background jobs are as dependable as your web requests.

Screenshot of Judoscale dyno selector

Works with any language or framework

Judoscale evolved from the popular Rails Autoscale add-on, bringing reliable autoscaling to all languages and frameworks on Heroku. Node, Java, PHP, Python, and yes… even Ruby on Rails. Judoscale was built for every Heroku app.

Not sure if Judoscale or Rails Autoscale is right for you? Here’s how to decide.

Beautiful and simple

Can developer tooling spark joy? We think so! Judoscale was designed to be clean, approachable, and discoverable. You’ll feel at home in no time, no product tours necessary.

📣 Early access users get two months free

Sign up while Judoscale is in the beta phase, and you’ll get your first two months free after Judoscale is out of beta. This is our way of saying thanks for being an early Judoscale supporter!

Precision autoscaling control

It’s not enough to simply specify a target response time. Every app is unique, and you need more control than that. Judoscale gives you the controls you need to ensure predictable and reliable autoscaling.

Screenshot of Judoscale settings, upscaling by multiple dynos at a time

An add-on that pays for itself

Most Heroku apps are overscaled, and you’ll be amazed how much you can reduce your Heroku bill by adding Judoscale.

Screenshot of autoscale savings

Security taken seriously

We will never ask for your Heroku API key or password. Judoscale only has the limited access to your application granted by Heroku’s platform API for partners.

Access to Judoscale is managed through Heroku’s single sign-on. No need to create additional accounts and passwords. Any team member with access to your Heroku app will automatically have access to Judoscale.

Here to support you

We’re a small bootstrapped team, and we don’t hide behind a corporate identity. When you contact us, you’ll get a real response from a developer like you. I’m Adam, the founder and lead dev, and I’d love to hear from you!

Adam’s profile image

Click the button below if you want to chat about how Judoscale can bring calm and predicability to your app.

Book a call with Judoscale

Region Availability

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

  • Common Runtime
  • Private Spaces
Region Available
United States Available
Europe Available
Region Available Installable in Space
Virginia Available
Oregon Available
Frankfurt Available
Tokyo Available
Sydney Available
Dublin Available

Plans & Pricing

    • Autoscale web dynos
    • Precision autoscale controls
    • Autoscale worker dynos (with language adapter)
    • Queue time autoscaling (with language adapter)
    • Direct email support
    • Two months free (early access bonus)
Install Judoscale
heroku addons:create judoscale

To provision, copy the snippet into your CLI or use the install button above.

Judoscale Documentation