Stop Building in the Cloud. Run AWS Locally
Build and test Step Functions, Lambda, SQS, Bedrock, and more without deploying. Run AWS Step Functions locally with real Lambda execution. Iterate instantly with ZERO AWS costs.
Cloud debugging is a nightmare
Every change means a deploy. Every deploy means waiting. And when something fails, you’re digging through CloudWatch logs hoping to find the line that broke everything.
A one-line Lambda fix triggers a full deploy cycle. You spend more time waiting for CloudFormation than actually writing code.
“A simple condition change, and testing still takes minutes, that delay adds up.”
Your state machine runs, something silently fails, and you’re left parsing JSON blobs in CloudWatch trying to figure out which state broke and why.
“Looks like the execution hit an issue, digging into the logs now… I’ll provide a progress report in one hour.”
One developer’s test run corrupts the shared state. Now two people are stopped, untangling whose execution did what to which resource.
“I think a workflow may have run against the dev table, let’s have a call and take a look.”
Every test invocation triggers real Lambda calls, Step Functions charges, and API Gateway hits. Your dev account bill grows while your feature is still half-built.
“Between Lambda costs and time spent debugging, this workflow cost us much more than we expected.”
There’s a better way to build. Run everything locally.
No deploys. ZERO AWS costs. No shared environment chaos. Just your code, running on your machine.Everything you need to move fast
From local Lambda execution to real-time workflow debugging, Thrubit replaces your AWS cloud with a local environment that runs on your desktop.
Share execution sessions across your team in real time. Every state transition, Lambda log, and debug trace is visible to all connected team members simultaneously.
Simple setup, instant results
No cloud credentials required to get started.
Open your project folders in Thrubit. It discovers every Lambda function and state machine automatically.
Pick a workflow, view its visual graph, and provide test input JSON. Thrubit resolves the Lambda handlers from your template.
Hit Run. Watch each state execute in real time, inspect inputs and outputs at every transition, and jump to failing code in your IDE.
Start free. No AWS account needed.
ZERO AWS costs.
Download Thrubit and run your first state machine locally in under five minutes. No cloud setup, no IAM policies, no waiting.
What teams are saying
Real feedback from engineers, trainers and decision makers.
“Thrubit cut our Step Functions debugging cycle from 15 minutes per iteration down to seconds. The visual trace is worth the price alone. It’s become an essential part of our development workflow.”
“I was looking for ways to make Step Functions and Lambdas more tangible for students. Thrubit makes it significantly easier to visualize workflows and experiment locally, accelerating real understanding.”
“Thrubit saves us over $24k a year & protects us from surprise AWS bills. One rogue state machine once cost us 10x our typical month. With Thrubit, that risk is gone and our developers iterate faster.”
