The Best Serverless Development Frameworks in 2026
Pick Serverless Framework: its YAML-and-CloudFormation approach lets you describe functions, triggers, and AWS infrastructure, then push application code and resources with a command-line tool operating in your environment. The optional Dashboard extends that workflow with GitHub or Bitbucket pipelines, secrets, and Lambda monitoring, while the framework remains open source. Serverless Framework is also the best free option. For AWS groups seeking template-driven work and on-machine troubleshooting, AWS Serverless Application Model (AWS SAM) is the focused choice: it invokes, tests, and debugs Lambda functions locally, then builds, packages, deploys, synchronizes, and manages CI/CD pipelines. For Java developers who need more than one cloud runtime, Spring Cloud Function supports AWS Lambda plus Azure and Google Cloud function environments and accommodates imperative, reactive, or hybrid coding models. It also lets developers combine functions and exercise them locally before release, while leaving infrastructure rollout outside its core scope. The remaining entries narrow in on Kubernetes operations, container platforms, WebAssembly workloads, or language-specific tooling, so buyers can match a framework to their deployment target and language.
Our top picks
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Top ranked
Serverless Framework#1 of 369.2/10An open-source, YAML-driven AWS framework with optional hosted deployment and monitoring tools.
Free plan
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Runner-up
9.1/10A free AWS-focused toolkit for defining, deploying, and locally debugging serverless apps.
Free plan
-
Top-ranked free plan
Spring Cloud Function#4 of 368.7/10An open-source Spring programming model for packaging and adapting Java functions across clouds.
Free plan
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 36 tools, best first
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Best forTeams deploying AWS serverless apps with YAML
An open-source, YAML-driven AWS framework with optional hosted deployment and monitoring tools.
9.2/10★★★★★Visit site -
Best forAWS teams wanting templates and local debugging
A free AWS-focused toolkit for defining, deploying, and locally debugging serverless apps.
9.1/10★★★★★Visit AWS SAM -
Best forTeams building portable event-driven functions
A portable, self-managed framework for event-driven functions, with Kubernetes and Docker support.
8.8/10★★★★☆Try Apache OpenWhisk -
Best forJava teams targeting several cloud function providers
An open-source Spring programming model for packaging and adapting Java functions across clouds.
- Local testing
- Application packaging
8.7/10★★★★☆Visit site -
Best forJava teams building cloud-native applications and functions
An open-source Java and Kotlin framework with Kubernetes tooling, not a serverless deployment workflow.
8.6/10★★★★☆Visit Quarkus -
Best forTeams deploying containerized functions on Kubernetes
A self-hosted, container-based serverless platform with broad Kubernetes targets and paid scale-to-zero.
8.4/10★★★★☆Visit OpenFaaS -
Best forKubernetes teams needing scalable event-triggered functions
A self-hosted way to run event-triggered functions on Kubernetes, with automatic scaling.
8.2/10★★★★☆Visit Fission -
Best forTeams running containerized functions across environments
A self-hosted, container-native Functions-as-a-Service platform for deployment across environments.
8.1/10★★★★☆Visit Fn Project -
Best forTeams seeking Go or TypeScript cloud infrastructure
A Go and TypeScript backend platform that automates infrastructure, deployment, and observability.
8.0/10★★★★☆Visit Encore -
Best forTeams deploying functions across cloud providers
A multi-cloud serverless CLI with templates, YAML tools, and local debugging.
- Local testing
7.9/10★★★★☆Try Serverless Devs -
Best forTeams building backends for multiple cloud providers
An open-source framework for declaring, locally testing and deploying cloud backends across providers.
- Kubernetes support
- Local testing
- Application packaging
7.8/10★★★★☆Visit Nitric -
Best forTeams deploying Next.js applications on AWS
Deploy Next.js to AWS with infrastructure defined in TypeScript and an optional Console.
7.7/10★★★★☆Visit SST -
Best forSmall teams building AWS apps with a local simulator
Manifest-based AWS app development with local Lambda emulation and AWS deployment.
- Local testing
- Application packaging
7.6/10★★★★☆Visit Architect -
Best forPython teams wanting a simple AWS Lambda workflow
A focused Python CLI for building, packaging, and deploying applications to AWS Lambda.
- Local testing
- Application packaging
7.5/10★★★★☆Visit AWS Chalice -
Best forJava teams adapting Micronaut functions to cloud providers
An open-source Micronaut option for building Java, Kotlin, and Groovy serverless functions.
- Local testing
- Application packaging
7.3/10★★★★☆Visit Micronaut -
Best forTeams exploring code-first cloud infrastructure development
Wing brings application code and cloud infrastructure into one programming model.
- Local testing
7.2/10★★★★☆Explore Wing -
Best forC# teams deploying AWS Lambda modules
A free, open-source CLI for building and deploying C# serverless modules on AWS.
- Application packaging
7.1/10★★★★☆Visit LambdaSharp -
Best forPHP teams deploying Laravel or Symfony to AWS Lambda
An open-source toolkit for deploying PHP applications to AWS Lambda.
- Deployment rollback
- Local testing
- Application packaging
7.0/10★★★★☆Visit Bref -
Best forPulsar teams orchestrating functions on Kubernetes
Orchestrates Pulsar Functions and IO connectors on Kubernetes, with autoscaling and lifecycle management.
- Kubernetes support
- Application packaging
6.9/10★★★☆☆Visit StreamNative -
Best forTeams running event-driven functions with GPU support
A self-hosted serverless framework with event triggers, Kubernetes deployment, and GPU support.
6.8/10★★★☆☆Visit Nuclio -
Best forKubernetes teams building event-driven function runtimes
A self-hosted Kubernetes option for teams building event-driven function runtimes.
6.7/10★★★☆☆Visit OpenFunction -
Best forKubernetes teams operating scale-to-zero services
A Kubernetes-focused choice for teams that need scale-to-zero and traffic control.
6.6/10★★★☆☆Visit Knative -
Best forDevelopers testing functions across language runtimes
A multi-language runtime for local function development, testing, and HTTP serving.
- Kubernetes support
- Local testing
- Application packaging
6.5/10★★★☆☆Visit Google Cloud -
Best forTeams defining and locally testing AWS Lambda functions
A YAML-based framework for packaging and locally running AWS Lambda services.
- Local testing
- Application packaging
6.4/10★★★☆☆Visit site -
Best forRust developers building and testing AWS Lambda functions
A focused CLI for developing Rust Lambda functions locally and deploying them to AWS.
- Local testing
- Application packaging
6.3/10★★★☆☆Visit Cargo Lambda -
Best forJavaScript teams deploying small AWS Lambda functions
A focused way to run JavaScript batch workloads on AWS Lambda or locally.
- Local testing
- Application packaging
6.2/10★★★☆☆Visit faast.js -
Best forRails teams deploying existing apps to AWS Lambda
A Ruby-focused AWS Lambda deployment service with release history and rollback.
- Deployment rollback
- Application packaging
6.1/10★★★☆☆Visit Jets -
Best forTeams operating Spin workloads on Kubernetes
An open-source Kubernetes layer for deploying and operating Spin workloads.
- Kubernetes support
- Application packaging
6.0/10★★★☆☆Visit SpinKube -
Best forDevelopers building WebAssembly applications locally
An open-source framework for building and running WebAssembly applications locally.
- Kubernetes support
- Local testing
- Application packaging
5.9/10★★★☆☆Visit Spin -
Best forTeams composing portable WebAssembly workloads
An open-source toolkit for composing, building, and running WebAssembly components.
- Kubernetes support
- Local testing
- Application packaging
5.8/10★★★☆☆Visit wasmCloud -
Best forGo teams building event-driven integration flows
A visual and code-driven Go ecosystem for event-driven apps, from functions to edge binaries.
- Application packaging
5.7/10★★★☆☆Visit Project Flogo -
Best forJava teams running existing web frameworks on Lambda
A Java adapter for running supported web frameworks on AWS Lambda.
- Local testing
- Application packaging
5.6/10★★★☆☆Visit AWS -
Best forPython developers experimenting with self-hosted functions
A Python-focused, self-hosted research project for running triggered functions in isolated sandboxes.
5.5/10★★★☆☆Visit OpenLambda -
Best forTwilio developers building and deploying Functions
A focused, free toolkit for building, testing, and deploying Twilio Functions.
- Local testing
- Application packaging
5.4/10★★★☆☆Visit Twilio -
Best forDevelopers serving HTTP routes from WebAssembly workers
A free, open-source way to run language-flexible WebAssembly workers behind HTTP routes.
5.3/10★★★☆☆Visit site -
Best forAWS teams needing local emulation and test sandboxes
Emulates cloud services for local development, CI testing, and infrastructure validation.
5.2/10★★★☆☆Visit LocalStack
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Deployment targets | Application packaging | Kubernetes support | Score |
|---|---|---|---|---|---|---|---|
| 1 | Serverless Framework | Yes | $142/mo | 9.2 | |||
| 2 | AWS Serverless Application Model (AWS SAM) | Yes | Free | 9.1 | |||
| 3 | Apache OpenWhisk | Free | 8.8 | ||||
| 4 | Spring Cloud Function | Yes | Free | Multi_cloud | Yes | No | 8.7 |
| 5 | Quarkus | Yes | Free | 8.6 | |||
| 6 | OpenFaaS | Yes | $1,250/mo | 8.4 | |||
| 7 | Fission | Free | 8.2 | ||||
| 8 | Fn Project | Free | 8.1 | ||||
| 9 | Encore | Yes | 8.0 | ||||
| 10 | Serverless Devs | Yes | Free | Multi_cloud | 7.9 | ||
| 11 | Nitric | Yes | Free | Multi_cloud | Yes | Yes | 7.8 |
| 12 | SST | Yes | $0.03/unit usage-based | 7.7 | |||
| 13 | Architect | Yes | Free | Aws | Yes | No | 7.6 |
| 14 | AWS Chalice | Yes | Free | Aws | Yes | No | 7.5 |
| 15 | Micronaut Functions | Yes | Free | Multi_cloud | Yes | No | 7.3 |
| 16 | Wing | Yes | Free | Multi_cloud | 7.2 | ||
| 17 | LambdaSharp | Yes | Free | Aws | Yes | No | 7.1 |
| 18 | Bref | Yes | Free | Aws | Yes | No | 7.0 |
| 19 | Function Mesh | Yes | Free | Kubernetes | Yes | Yes | 6.9 |
| 20 | Nuclio | Free | 6.8 | ||||
| 21 | OpenFunction | Free | 6.7 | ||||
| 22 | Knative | Free | 6.6 | ||||
| 23 | Google Cloud Functions Framework | Yes | Free | Multi_cloud | Yes | Yes | 6.5 |
| 24 | Open Serverless (osls) | Yes | Free | Aws | Yes | No | 6.4 |
| 25 | Cargo Lambda | Yes | Free | Aws | Yes | No | 6.3 |
| 26 | faast.js | Yes | Free | Aws | Yes | No | 6.2 |
| 27 | Jets | No | $30/unit/mo | Aws | Yes | No | 6.1 |
| 28 | SpinKube | Yes | Free | Kubernetes | Yes | Yes | 6.0 |
| 29 | Spin | Yes | Free | Multi_cloud | Yes | Yes | 5.9 |
| 30 | wasmCloud | Yes | Free | Multi_cloud | Yes | Yes | 5.8 |
| 31 | Project Flogo | Yes | Free | Aws | Yes | 5.7 | |
| 32 | AWS Serverless Java Container | Yes | Free | Aws | Yes | No | 5.6 |
| 33 | OpenLambda | Yes | Free | No | 5.5 | ||
| 34 | Twilio Serverless Toolkit | Yes | Free | Aws | Yes | No | 5.4 |
| 35 | Wasm Workers Server | Yes | Free | Multi_cloud | No | No | 5.3 |
| 36 | LocalStack | Yes | $39/user/mo | 5.2 |
Head-to-head All 28 comparisons →
- Serverless Framework vs AWS Serverless Application Model (AWS SAM)
- Serverless Framework vs Apache OpenWhisk
- Serverless Framework vs Spring Cloud Function
- Serverless Framework vs Quarkus
- Serverless Framework vs OpenFaaS
- Serverless Framework vs Fission
- Serverless Framework vs Fn Project
- AWS Serverless Application Model (AWS SAM) vs Apache OpenWhisk
- AWS Serverless Application Model (AWS SAM) vs Spring Cloud Function
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How we rank serverless development frameworks
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update