Autoscaling in minutes, not days
Scalar connects to your existing hosting and automatically scales servers and workers based on real load or schedule. No Kubernetes. No DevOps hire. No 3am pages.
No credit card required · Free during beta
Works out-of-the-box with
Built for app teams, not infrastructure teams
Enterprise tools assume you're running Kubernetes. Scalar is for teams on Heroku, Render, or Fly.io who just want their app to handle traffic spikes without a dedicated DevOps engineer.
5-minute setup
Connect your Heroku, Render, Fly.io, or AWS account with API credentials. No YAML. No agents. No new infra to manage.
Scales web & workers
Handle HTTP servers and background job queues together. Sidekiq backing up? Scalar adds workers automatically before users notice.
Cut idle costs up to 40%
Stop paying for overprovisioned servers overnight. Scale down when traffic drops and back up before morning rush — automatically.
Scales in under 60 seconds
Our scaling algorithm runs every 10 seconds. Capacity issues trigger a response before your users ever notice a slowdown.
Schedule-based scaling
Know traffic spikes every Monday morning? Pre-warm instances on a custom schedule — no manual intervention required.
Safe guardrails built in
Set min/max instance limits so Scalar never over-scales unexpectedly. Every decision is logged — you always know what happened and why.
From traffic spike to scaled in under a minute
Scalar monitors your metrics and talks directly to your hosting provider — making real-time decisions so you don't have to.
Connect your platform
Link Scalar to Heroku, Render, Fly.io, or AWS with API credentials. Takes under 5 minutes, no agents required.
Define your scaling logic
Set simple conditions: scale up when queue depth exceeds a threshold, scale down after N minutes of low traffic. Or use a time-based schedule.
Scalar monitors every 10 seconds
We poll your platform's metrics in real time and trigger scale events the moment your conditions are met — faster than any manual response.
Review the audit log
Every decision is recorded with the trigger and outcome. Understand your savings and tune your rules from a clean dashboard.
Trusted by engineering teams who just want it to work
From solo founders to engineering leads — Scalar gets out of the way and handles the scaling.
We had constant Heroku overprovisioning issues. Scalar just fixed it. We haven't touched our dyno config in months and our bill is down significantly.
I was scaling Sidekiq workers manually at 2am during traffic spikes. Scalar turned that into a non-event. It's been fantastic.
Setup took less time than writing the Jira ticket to investigate autoscaling options. The schedule-based scaling alone saves us hundreds a month.
Purpose-built for your platform. Not an afterthought.
Other autoscalers were built for Kubernetes clusters, then bolted onto Heroku and Render. Scalar was designed from the ground up for the platforms you actually use.
Start autoscaling for free
Setup takes less than 5 minutes. No credit card required. We'll reach out within 2 business days to get you onboarded.