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Discover top open-source software, updated regularly with real-world adoption signals.

Open-source cloud development platform with serverless functions and storage
Cloud development platform delivering serverless functions, MongoDB databases, and object storage with an integrated WebIDE. Write and deploy backend code as easily as writing a blog post.
Laf is an open-source cloud development platform that provides out-of-the-box application resources including serverless functions, cloud databases, and object storage. Developers can focus entirely on business logic without managing servers, enabling rapid prototyping and deployment.
The platform features a browser-based WebIDE for writing and deploying TypeScript/JavaScript cloud functions instantly. It includes MongoDB database integration, S3-compatible object storage, static website hosting, and WebSocket support. The laf-client-sdk works across any JavaScript runtime, making it particularly powerful for frontend developers seeking full-stack capabilities.
Frontend developers gain immediate backend capabilities without context-switching languages. Backend engineers escape infrastructure toil—no more nginx configuration, manual database provisioning, or SSH-ing into servers to read logs. Independent developers and startups accelerate MVP delivery and iteration cycles. Teams using proprietary cloud platforms can migrate to Laf for source code ownership and private deployment options, avoiding vendor lock-in while maintaining rapid development workflows.
When teams consider Laf, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Frontend-to-Full-Stack Transformation
React developers deploy authenticated APIs and database operations without backend team dependencies, shipping features end-to-end in hours instead of days.
Rapid ChatGPT Integration
Build and deploy a custom ChatGPT interface in three minutes using cloud functions to proxy OpenAI API calls with custom business logic and rate limiting.
Client Source Code Delivery
Agencies deliver fully functional applications with private Laf instances to clients, providing complete ownership and eliminating ongoing platform fees.
Serverless Todo Application
Deploy a complete CRUD application with database persistence and static frontend hosting in minutes, demonstrating concept viability before infrastructure investment.
Laf cloud functions are written in JavaScript or TypeScript, providing a unified language stack for frontend and backend development.
Yes, Laf can be deployed on Kubernetes clusters. Sealos offers one-click deployment with preconfigured infrastructure, while manual deployment requires Kubernetes expertise and configuration of domains, certificates, and gateways.
Laf integrates MongoDB as its cloud database solution, accessible directly from cloud functions and client SDKs.
Laf is open-source and self-hostable under Apache-2.0, preventing vendor lock-in. It focuses on JavaScript/TypeScript workflows with integrated WebIDE for instant deployment, while Firebase and Supabase offer broader language support and larger ecosystems.
Yes, you can access a hosted instance at sealos.run to start developing immediately without any infrastructure setup.
Project at a glance
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