Best Free Serverless Tools in 2026

Run code without managing servers, pay only for compute time

4.6/5 across G2 and Capterra · 1,148 ratings, Sep 2026

Lambda runs your code without servers to manage. Upload a function, configure a trigger, and AWS handles scaling, patching, and availability. You pay only when code executes. Functions respond to HTTP requests, process queue messages, react to database changes-any event can trigger execution. The runtime handles everything except your business logic. Lambda changed how developers think about backends. Instead of maintaining servers, you write functions and let AWS handle the rest.

Managed cloud document database, no ops required

4.5/5 on G2 · 901 ratings, Aug 2026

MongoDB Atlas provides managed MongoDB in the cloud. Document database without ops work-MongoDB with the infrastructure handled. The management is automatic. The scaling is flexible. The serverless option exists. Teams wanting MongoDB without database operations choose Atlas for managed documents.

Serverless SQL database at the edge

4.5/5 on G2 · 696 ratings, Mar 2026

Cloudflare D1 is a serverless SQL database built on SQLite that runs on Cloudflare's global edge network. Designed for developers using Cloudflare Workers and Pages, it provides low-latency data access without managing infrastructure. D1 supports standard SQL queries, automatic read replication, and a Time Travel feature for restoring databases to any point within the last 30 days. Its pricing follows a scale-to-zero model with no charges when inactive and no egress fees, making it cost-effective for applications with variable traffic. Individual databases are capped at 10 GB, encouraging a distributed multi-database architecture.

Create web servers with everything you need and deploy them wherever you prefer.

4.5/5 across G2, SourceForge and Capterra · 518 ratings, Oct 2026

Nitro is a next-generation server toolkit designed to simplify the creation and deployment of web servers. It aims to provide a rapid development experience with zero-config setup and hot module replacement for server code. The toolkit emphasizes portability, allowing developers to deploy the same codebase to various providers without extra configuration, and produces compact outputs, often less than 1MB, by eliminating node_modules. This tool is ideal for developers looking for an efficient and flexible way to build server-side applications. It offers features like automatic filesystem routing, built-in TypeScript support, a multi-driver storage layer, and a powerful caching API. Its minimal design ensures low overhead, and features like code-splitting and auto-imports contribute to fast server startup times and clean, optimized codebases. Nitro also supports backward compatibility, enabling the use of legacy npm packages and CommonJS modules.

Deploy JavaScript globally in seconds with serverless functions distributed at the edge.

4.6/5 on G2 · 233 ratings, Sep 2026

Supabase Edge Functions allow developers to easily author, deploy, and monitor serverless functions distributed globally at the edge, close to their users. These functions are fully managed, automatically scale, and offer global deployments for maximum resiliency and low latency. They support Node.js and over a million NPM modules, making it easy to migrate existing workloads. The platform provides a delightful developer experience from local to production, utilizing Deno as an open-source JavaScript runtime. It integrates seamlessly with the broader Supabase ecosystem, including authentication, storage, and databases, offering zero-configuration setup and pre-populated environment variables. Edge Functions are ideal for developers looking to run server-side logic with low latency and high performance, with built-in observability features like real-time logs and metrics dashboards.

Internet security & performance

4.3/5 on PeerSpot · 79 ratings, May 2026

Cloudflare is a global cloud platform for security, performance, and reliability. CDN delivers content from cities worldwide. DDoS protection and WAF secure websites and APIs. Workers run serverless code at the edge. DNS, domains, and email routing included. The internet's nervous system that makes websites fast and secure.

Build, secure, and scale APIs with REST, HTTP, and WebSocket support

4.4/5 across G2 and Capterra · 156 ratings, Sep 2026

Amazon API Gateway is a fully managed AWS service for creating, publishing, maintaining, monitoring, and securing APIs at any scale. It supports REST APIs, HTTP APIs, and WebSocket APIs, handling hundreds of thousands of concurrent API calls with built-in traffic management, authorization, throttling, and monitoring. HTTP APIs offer up to 71% cost savings over REST APIs for serverless workloads, while WebSocket APIs enable real-time bidirectional communication for chat and streaming applications.

Serverless vector database for AI applications

4.3/5 across SourceForge and G2 · 107 ratings, Sep 2026

LanceDB provides vector database with serverless simplicity. Store embeddings, query by similarity-vector search that fits modern development patterns. The API is straightforward. The performance is good. The integration is simple. Developers building AI applications use LanceDB for approachable vector storage.

Serverless functions for Netlify sites

4.5/5 on G2 · 76 ratings, Jun 2026

Netlify Functions provides serverless compute alongside web hosting. Backend logic for static sites-serverless that deploys with your frontend. The deployment is unified. The development is local. The scaling is automatic. Netlify users needing backend logic add Functions for integrated serverless.

Serverless compute on Google Cloud

4.4/5 on G2 · 81 ratings, Aug 2026

Google Cloud Functions runs code without servers on Google's infrastructure. HTTP triggers, Pub/Sub events, storage changes-serverless computing integrated with Google Cloud services. The runtime handles scaling. Integration with Google services is seamless. The development model is straightforward. Developers on Google Cloud use Cloud Functions for serverless computing that fits the ecosystem.

Ultrafast web framework for the edge, write once deploy anywhere

4.6/5 on G2 · 60 ratings, May 2026

Hono is an ultrafast web framework for the Edge, supporting Cloudflare Workers, Deno, Bun, and Node.js. Built for modern serverless environments with zero dependencies and tiny bundle size. Features include middleware support, routing, and TypeScript-first development. Benchmark-leading performance makes it perfect for APIs and microservices. Write once, deploy anywhere across multiple JavaScript runtimes.

Serverless containers on Kubernetes

4.3/5 across G2 and SourceForge · 80 ratings, Sep 2026

Knative provides serverless capabilities for Kubernetes. Build, deploy, and manage serverless workloads on your clusters-serverless patterns on infrastructure you control. The serving handles scaling. Events connect to sources. The platform extends Kubernetes. Teams wanting serverless on their Kubernetes choose Knative for self-hosted serverless.

Deploy JavaScript at the edge globally

3.6/5 across G2 and Trustpilot · 115 ratings, Aug 2026

Deno Deploy is serverless hosting for JavaScript and TypeScript projects with global edge deployment, built-in KV storage, and transparent pricing that scales with usage.

Build and deploy cloud applications with a single language.

4.6/5 on G2 · 25 ratings, Mar 2026

Winglang is an open-source programming language designed for building and deploying cloud applications. It unifies infrastructure and application code into a single codebase, allowing developers to define their cloud resources (like queues, buckets, and databases) and their application logic (like serverless functions) within the same Wing program. This approach aims to simplify the development and deployment process for serverless and other cloud-native architectures. Winglang compiles to cloud-agnostic infrastructure as code (Terraform, CloudFormation) and application code (JavaScript, Python, Go), enabling deployment to various cloud providers such as AWS, Azure, and Google Cloud. It provides a local simulation environment for testing cloud applications without deploying to a live cloud, which significantly speeds up the development feedback loop. The language is particularly well-suited for developers looking to reduce the cognitive load associated with managing separate infrastructure and application codebases, and for teams adopting serverless and event-driven architectures.

Deploy apps globally with zero config, automatic scaling, and no DevOps

4.6/5 across G2 and Trustpilot · 21 ratings, Sep 2026

Koyeb is a serverless platform for deploying apps globally with zero configuration. Deploy from Git or container registries to edge locations worldwide. Automatic HTTPS, scaling, and load balancing included. Native support for Node.js, Python, Go, Rust, and more. Pay only for what you use with no cold starts. Global deployment made simple for developers who want production infrastructure without DevOps complexity.