Neurelo
Backend-as-a-Service
AI-powered platform for generating production-ready APIs from database schemas with built-in observability.
Price$99+ / month
Starting price: above the category median.Future of SoftwareStart Survey
Backend-as-a-Service
AI-powered platform for generating production-ready APIs from database schemas with built-in observability.
Price$99+ / month
Starting price: above the category median.
Vector Databases
Open source search engine for full-text search and analytics that serves as a lightweight Elasticsearch alternative.
Backend-as-a-Service
Open-source toolkit for building real-time APIs and MongoDB-backed mobile and web apps with point-and-click UI.
Backend-as-a-Service
Managed Elasticsearch hosting service with dedicated clusters and enterprise support.
Price$49 / month
Price position: below the category median.
Backend-as-a-Service
Nhost is an open-source backend-as-a-service platform providing PostgreSQL database, GraphQL API, authentication, storage, and serverless functions as a Firebase alternative.

Backend-as-a-Service
Open-source game server from Heroic Labs providing social, real-time, and competitive features.
Price$600+ / month
Starting price: above the category median.
Backend-as-a-Service
Back4App provides a low-code backend platform built on the open-source Parse framework, offering database, APIs, push notifications, and cloud functions for mobile and web apps.
Price$100+ / month
Starting price: above the category median.Serverless Application Platforms
Open-source Firebase-like development platform providing instant GraphQL APIs, events, and file storage on Kubernetes.
Backend-as-a-Service
Appwrite is an open-source backend-as-a-service platform providing authentication, databases, storage, functions, and messaging APIs for web and mobile application development.

Headless CMS
Directus is an open-source data platform that wraps any SQL database with a real-time API and intuitive admin interface, functioning as both a headless CMS and a backend-as-a-service.