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Cargo Lambda

Free#25 of 36 in Serverless Development Frameworks

Cargo Lambda: A focused CLI for developing Rust Lambda functions locally and deploying them to AWS. Ranked #25 of 36 in Serverless Development Frameworks by our editors (6.3/10); pricing: Free plan; best for rust developers building and testing AWS Lambda functions.

6.3/10Editor score
Visit Cargo Lambda
Cargo Lambda6.3 Visit Cargo Lambda

At a glance

  • Editor score
    6.3 / 10
  • Pricing
    Free plan
  • Best for
    Rust developers building and testing AWS Lambda functions
  • Free plan
    Yes
  • Paid from
    Free
  • Deployment targets
    Aws
  • Facts checked
    23 Oct 2026

  • Where it wins

    • Generates Rust Lambda projects and can initialize existing directories
    • Builds for Linux and cross-compiles for ARM processors
    • Provides local Lambda control-plane emulation with JSON test payloads

  • Where it doesn't

    • Focused on Rust and AWS Lambda rather than multiple cloud providers
    • Requires AWS infrastructure; it is not a hosted serverless runtime
    • AWS infrastructure charges are separate from the free, open-source tool

Our verdict on Cargo Lambda

Cargo Lambda is a command-line tool for developing Rust functions for AWS Lambda. It suits developers who want to generate a starter project, compile Rust functions for Lambda, exercise them locally, and deploy them to AWS. It runs on Windows, macOS, and Linux, and is released under the MIT License. This is a development and deployment tool, not a hosted runtime, so teams still need AWS for deployed functions and should account for AWS infrastructure charges separately.

Its local workflow is a notable strength: Cargo Lambda can initialize a project in an existing directory, build for Linux, and cross-compile for ARM processors. A local server emulates the Lambda control plane, and functions can be invoked with JSON test payloads. That makes the tool relevant when developers want a local step before deployment, while keeping the workflow centered on Rust and Lambda rather than offering a general-purpose framework across cloud providers.

The AWS fit extends beyond deployment to compatibility with AWS SAM CLI and AWS CDK, plus Amazon API Gateway, Amazon Elastic Load Balancer, and AWS Lambda Function URLs. Cargo Lambda is free and open source, with no paid tiers described; AWS infrastructure costs remain separate. Choose it if Rust and AWS Lambda are already your target and you want project generation, local invocation, builds, and deployment in one CLI. Teams seeking a hosted runtime or a multi-cloud framework should look elsewhere.

Your product? Our editors can test Cargo Lambda in depth and publish a review, labelled as paid · from $149/mo →

Cargo Lambda pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on cargo-lambda.info

Cargo Lambda fact sheet

Free planYes
Paid fromFree
Deployment targetsAws
Local testingYes
Application packagingYes
Kubernetes supportNo
Supported languagesNot verified
Deployment rollbackNot verified
Deployment modelCloud_functions
DeploymentDesktop
PlatformsWindows, macOS, Linux
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations6 integrations: AWS Lambda, AWS SAM CLI, AWS CDK, Amazon API Gateway, Amazon Elastic Load Balancer, AWS Lambda Function URLs
PricingFree plan
Websitecargo-lambda.info
Facts checked23 Oct 2026

Cargo Lambda integrations

Cargo Lambda lists 6 integrations on its own site.

  • AWS Lambda
  • AWS SAM CLI
  • AWS CDK
  • Amazon API Gateway
  • Amazon Elastic Load Balancer
  • AWS Lambda Function URLs

Alternatives to Cargo Lambda

See all Cargo Lambda alternatives →

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Featured on iTechGuides

Featured on iTechGuides — Cargo Lambda 6.3/10

Cargo Lambda is listed in our Serverless Development Frameworks directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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