Zero-Cost Entry16 tools audited

Free Serverless & Cloud Databases & Open Source Software

Technical selection of platforms without financial barrier to entry: permanent free tiers, self-hosted projects, and open-source alternatives.

View full catalog for Serverless & Cloud Databases

Free Limits & Commercial Threshold Matrix

Exact breakdown of quotas, credit card requirements, and commercial allowances before requiring an upgrade.

ToolModelConditionsFree Tier DetailsSSO TaxAction
PostgreSQLFree
No credit card requiredCommercial use allowedUnlimited usage with no expiration
PostgreSQL es de código abierto y gratuito de forma indefinida sin restricciones de uso.StandardTry
GenesisDBFree
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Uso ilimitado bajo licencia MIT al ser un software completamente abierto y auto-hospedable.StandardTry
PrometheusFree
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Software is 100% free and open-source under Apache 2.0 license.StandardTry
RedisFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Despliegue compartido gratuito en la nube con un límite de 30 MB por base de datos y soporte comunitario.Single Sign-On Tax (Enterprise SAML)Try
NeonFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
El plan gratuito incluye proyectos base con horas de cómputo mensuales limitadas y almacenamiento restringido.StandardTry
TimescaleFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Versión autohospedada gratuita e indefinida bajo licencia comunitaria con acceso a las funciones principales de series temporales.Single Sign-On Tax (Enterprise SAML)Try
SupabaseFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Incluye 2 proyectos gratuitos con límites de 500MB de base de datos y 50,000 usuarios activos mensuales.StandardTry
PocketBaseFree
No credit card requiredCommercial use allowedUnlimited usage with no expiration
PocketBase es completamente gratuito y de código abierto sin limitaciones de uso en su versión autohospedada.StandardTry
TursoFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Incluye múltiples bases de datos con límites de almacenamiento y consultas mensuales para desarrollo y pruebas.StandardTry
RenderFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Incluye recursos gratuitos permanentes para prototipos, sitios estáticos, servicios web básicos y bases de datos con limitaciones de rendimiento y suspensión por inactividad.Single Sign-On Tax (Enterprise SAML)Try
ChronosFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Permanent free tier with monthly usage allowances.StandardTry
TeableFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Plan gratuito disponible para individuos con $0 por usuario al mes y acceso a funciones esenciales.Single Sign-On Tax (Enterprise SAML)Try
instancezFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Free to start for side projects with zero base monthly cost.StandardTry
MongoDBFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Atlas Free tier incluye 512 MB de almacenamiento gratuito de por vida sin necesidad de tarjeta de crédito para entornos de prueba y aprendizaje.Single Sign-On Tax (Enterprise SAML)Try
Fly.ioFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Incluye capacidad gratuita para ejecutar un número reducido de VMs pequeñas y bases de datos Postgres compartidas.Single Sign-On Tax (Enterprise SAML)Try
SeqoraFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Permanent free tier with monthly usage allowances.StandardTry

Audited Free & Freemium Platforms (16)

PostgreSQL

4.8/5.01 verified review
Free

The world's most advanced open source relational database system.

  • Continuous active development spanning over 35 years with proven enterprise stability.
  • Extensive support for complex data types, JSON storage, and custom extensions.
  • Completely free open source model with no commercial licensing restrictions.
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GenesisDB

4.7/5.01 verified review
FreeOpen SourceMIT

Open source event sourcing database written in Go

  • Distributed as a single static Go binary with zero runtime dependencies
  • Native CloudEvents 1.0 support with hierarchical subject routing
  • Completely open source under the MIT license with no event limits or license keys

14stars on GitHub

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Prometheus

4.7/5.01 verified review
FreeOpen SourceApache-2.0

Open-source monitoring system and time series database.

  • Dimensional data model built on key-value metrics and labels.
  • Powerful PromQL query language for complex queries and aggregations.
  • Autonomous architecture independent of complex distributed storage.

66.8kstars on GitHub

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Redis

4.7/5.01 verified review
Freemium

In-memory data platform for caching, real-time apps, search, and vectors.

  • Extremely high throughput powered by in-memory RAM storage.
  • Comprehensive support for advanced data structures including hashes, streams, and vectors.
  • Mature ecosystem with native client support across multiple programming languages.

77.1kstars on GitHub

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Neon

4.6/5.01 verified review
FreemiumOpen SourceApache-2.0

Serverless Postgres backend platform featuring instant database branching.

  • Instantaneous creation of isolated database branches for development and testing.
  • Autoscaling with scale-to-zero functionality to optimize cloud resource costs.
  • Comprehensive backend suite including authentication, object storage, and AI gateway.

23.3kstars on GitHub

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Timescale

4.6/5.01 verified review
Freemium

PostgreSQL database optimized for time-series and massive machine data workloads at petabyte scale.

  • Full compatibility with standard PostgreSQL ecosystem and extensions
  • Native automated partitioning and columnar compression capabilities
  • Optimized ingestion performance for massive IoT and metrics workloads

23.8kstars on GitHub

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Supabase

4.6/5.01 verified review
FreemiumOpen SourceApache-2.0

Open source Firebase alternative providing a full Postgres database, authentication, and instant APIs.

  • Full Postgres database access with complete SQL capabilities and extensions.
  • Auto-generated instant REST and realtime APIs based directly on the schema.
  • Open source architecture allowing complete self-hosting without lock-in.

114.1kstars on GitHub

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PocketBase

4.5/5.01 verified review
Free

Open source backend in a single file with realtime database and authentication.

  • Extremely simple deployment through a single binary executable.
  • Embedded SQLite database with real-time query support.
  • Built-in web admin dashboard requiring zero extra configuration.

244stars on GitHub

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Turso

4.5/5.01 verified review
FreemiumOpen SourceMIT

Rust-based SQLite compatible SQL database with MVCC concurrency and cloud synchronization.

  • Full compatibility with SQLite and standard SQL syntax without modifications.
  • Native support for concurrent writes via MVCC avoiding database locked errors.
  • Architectural model ideal for isolating data per user, tenant, or AI agent.

25.1kstars on GitHub

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Render

4.5/5.01 verified review
Freemium

Unified cloud infrastructure platform to deploy web services, databases, and agents.

  • Automated deployments directly connected to Git repositories.
  • Native support for multiple workloads including databases and background workers.
  • Intuitive management interface that reduces operational overhead compared to raw IaaS.
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Chronos

4.4/5.01 verified review
Freemium

Postgres-compatible database built for autonomous AI agents.

  • Full compatibility with the standard PostgreSQL wire protocol.
  • Instant database forking for isolated AI agent workflows.
  • Automated merge policies and manual review gates for production data.

3stars on GitHub

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Teable

4.4/5.01 verified review
Freemium

An AI spreadsheet for business to build custom workflows and applications.

  • Advanced AI capabilities integrated directly into the spreadsheet interface.
  • Available in both cloud and self-hosted deployment models.
  • Smooth mobile experience with applications for iOS and Android.

21.9kstars on GitHub

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instancez

4.4/5.01 verified review
FreemiumOpen SourceApache-2.0

Developer and LLM-friendly Supabase drop-in replacement packaged as a single Go binary.

  • Drop-in wire compatibility with the standard supabase-js client.
  • Simplified self-hosting deployment using a single Go binary.
  • Engineered natively for coding agents and AI assistant workflows.

61stars on GitHub

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MongoDB

4.4/5.01 verified review
Freemium

Document-oriented data platform designed for flexible schemas and AI-native workloads.

  • Flexible BSON document data model that adapts to evolving application schemas.
  • Native support for rich queries and complex aggregations using MQL.
  • Managed Atlas multi-cloud platform with horizontal scaling capabilities.
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Fly.io

4.4/5.01 verified review
FreemiumOpen SourceApache-2.0

Global cloud platform to deploy applications and agents on hardware-isolated virtual machines.

  • True hardware isolation using microVMs for each instance.
  • Multi-region global deployment close to end users.
  • Excellent CLI support and automation via flyctl.

1.7kstars on GitHub

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Seqora

4.3/5.01 verified review
Freemium

Desktop database client for PostgreSQL, MySQL, MariaDB and SQLite with visual schema design.

  • Completely local operation with no cloud services or remote storage.
  • Visual schema design with automatic SQL query generation.
  • Preview of schema changes in rolled-back transactions before execution.
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