LambdaSharp
LambdaSharp: A free, open-source CLI for building and deploying C# serverless modules on AWS. Ranked #17 of 36 in Serverless Development Frameworks by our editors (7.1/10); pricing: Free plan; best for C# teams deploying AWS Lambda modules.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forC# teams deploying AWS Lambda modules
- Free planYes
- Paid fromFree
- Deployment targetsAws
- Facts checked23 Oct 2026
Where it wins
- Defines functions and resources in declarative YAML modules
- Builds and deploys through CloudFormation, with packages uploaded to S3
- Deployment tiers and deterministic builds support staged releases
Where it doesn't
- Deployment targets are limited to AWS
- The framework centers on serverless .NET and C# workflows
- Kubernetes support is not part of its deployment model
Our verdict on LambdaSharp
LambdaSharp is a command-line tool and framework for building serverless .NET applications on AWS. Teams define modules and functions in YAML and C#, then use CLI commands to compile projects, package and upload artifacts, generate CloudFormation templates, and create or update stacks. Its scope suits small and mid-market teams working with AWS Lambda modules who want an infrastructure-aware development workflow; it is less suitable for teams seeking a cloud-neutral framework or Kubernetes deployment.
The workflow connects application packaging to AWS infrastructure: LambdaSharp compiles C# projects, uploads deployment packages to S3, and deploys through CloudFormation. Its integrations also include API Gateway, CloudWatch, and X-Ray. Deployment tiers support testing, staging, and production workflows, while deterministic builds can skip unchanged deployments. Cross-module references and CloudWatch log aggregation add useful structure for applications split across modules. The tradeoff is a close fit to AWS services rather than a broad, multi-cloud ecosystem.
LambdaSharp is free and open source, so its published offering does not require choosing among paid tiers. It runs on Windows, macOS, and Linux, but that cross-platform CLI availability does not change its AWS deployment target or its .NET focus. Teams that value YAML-defined modules, C# compilation, and CloudFormation deployment in one workflow should consider it. Teams needing Kubernetes support or deployment beyond AWS should look for a framework whose stated targets match those needs.
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LambdaSharp pricing
LambdaSharp fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment targets | Aws |
| Local testing | Not verified |
| Application packaging | Yes |
| Kubernetes support | No |
| Supported languages | Multi_language |
| Deployment rollback | Not verified |
| Deployment model | Cloud_functions |
| Deployment | Cloud |
| Platforms | Windows, macOS, Linux |
| Built for | Small business, Mid-market (editorial estimate) |
| Integrations | 6 integrations: AWS Lambda, AWS CloudFormation, Amazon S3, Amazon API Gateway, Amazon CloudWatch, AWS X-Ray |
| Pricing | Free plan |
| Website | lambdasharp.net |
| Facts checked | 23 Oct 2026 |
LambdaSharp integrations
LambdaSharp lists 6 integrations on its own site.
- AWS Lambda
- AWS CloudFormation
- Amazon S3
- Amazon API Gateway
- Amazon CloudWatch
- AWS X-Ray
Alternatives to LambdaSharp
- Serverless FrameworkAn open-source, YAML-driven AWS framework with optional hosted deployment and monitoring tools.9.2
- AWS Serverless Application Model (AWS SAM)A free AWS-focused toolkit for defining, deploying, and locally debugging serverless apps.9.1
- Apache OpenWhiskA portable, self-managed framework for event-driven functions, with Kubernetes and Docker support.8.8
See all LambdaSharp alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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