Open source
Phoenix Framework
Web framework for Elixir apps, APIs and real-time pages
Backend FrameworksProductive Elixir framework
Best tools for Backend teams
155 tools in our directory are marked as best for Backend teams, from 22 sections: Databases (25), APIs (21), Frameworks (16), Testing & QA (15) and 18 more sections.
Tools
Open source
phpDocumentor
Documentation generator for PHP projects built from DocBlock comments
Code DocsPHP documentation generator
Open source
Freemium
Pipedream
Integration layer for connecting AI agents to 3,000+ APIs
AutomationDeveloper-friendly automation
Open source
PIT
Mutation testing system for Java that checks test quality
Quality and ReportingMutation testing for Java
Curated
PlanetScale
Managed MySQL and Postgres hosting with horizontal scaling
RelationalManaged Postgres and MySQL
Open source
Podman
Daemonless container engine for running and building containers
KubernetesDaemonless container engine
Open source
PostgREST
Standalone server that turns a PostgreSQL database into a REST API
Cloud DatabasesREST API from Postgres
Freemium
Freemium
PowerSync
Sync engine that keeps a local SQLite database in step
Backend DataOffline-first sync for apps
Curated
Pydantic AI
Type-safe Python agent framework with many model providers
Agent FrameworksType safe Python agents
Open source
Open source
Qdrant
Open-source vector database for AI search and retrieval
Vector DatabasesRust vector search engine
Open source
quicktype
Generates typed models from JSON, JSON Schema and GraphQL
Online UtilitiesJSON to types generator
Open source
Popular
Open source
Restate
Durable execution runtime for agents, workflows and backends
Workflows and WebhooksDurable execution runtime
Open source
RocksDB
Embeddable persistent key-value store for fast storage
Cache and EmbeddedEmbedded key value engine
Freemium
Rollbar
Error monitoring that links production errors to code and fixes
Error TrackingReal time error monitoring
Open source
Saleor
Open source headless commerce platform with a GraphQL API
Backend PlatformsGraphQL commerce platform
Open source
Schemathesis
Open source tool that tests APIs by generating cases from schemas
Mocking TestingProperty based API testing
Popular
Open source
Sequelize
Node.js ORM for SQL databases with models and associations
ORMs and ValidationPromise-based Node ORM
Open source
Serverless Framework
Deploy APIs, scheduled tasks and event apps to AWS Lambda
Static & EdgeBuild and ship serverless apps
Open source
Sinatra
Lightweight Ruby framework for building web apps and APIs
Backend FrameworksTiny Ruby DSL framework
Open source
SQLAlchemy
Python SQL toolkit and ORM with full SQL power and flexibility
ORMs and ValidationPython SQL toolkit and ORM
Open source
Step CI
Open source API testing framework with YAML workflows and CI support
Mocking TestingAPI testing and monitoringInactive
Freemium
Stoplight
Visual platform for designing, documenting and mocking OpenAPI
API DesignAPI design and docs platform
Open source
SuperTokens
Open source user authentication with prebuilt login screens
AuthenticationOpen source auth for apps
Curated
SurrealDB
Multi-model database that runs self-hosted, embedded or in the cloud
NoSQL DatabasesMulti model database for apps
Open source
Svix
Webhook sending service with retries, signatures and a portal
Workflows and WebhooksWebhooks as a service
Popular
Swagger
Open source tools for designing and documenting OpenAPI APIs
API DesignOpenAPI docs and tooling
Open source
Swagger UI
Interactive API docs rendered from an OpenAPI specification
API DocsInteractive API reference
Paid
Open source
Temporal
Open source durable execution platform for reliable workflows
Workflows and WebhooksDurable execution platform
Open source
Testcontainers
Throwaway Docker containers for databases and services in tests
Test FrameworksThrowaway containers for tests
Open source
TestNG
Java test framework with groups, data providers and parallel runs
Test FrameworksJava test framework
Open source
Thumbor
Open source image server that crops, resizes and filters on demand
CDN & ImagesSmart image service
Open source
TiDB
Distributed SQL database for transactions and vector search
SQL DatabasesDistributed MySQL compatible
Open source
Freemium
Tinybird
Managed ClickHouse with SQL APIs for real-time analytics
Data WarehouseReal time analytics APIs
Curated
turbopuffer
Vector and full-text search database built on object storage
Vector DatabasesServerless vector and search
Freemium
Open source
TypeORM
TypeScript and JavaScript ORM for many SQL and NoSQL databases
ORMs and ValidationORM for TypeScript
Open source
TypeScript Handbook
Official guide to TypeScript basics, types, tooling and reference
Docs TutorialsOfficial TypeScript handbook
Open source
TypeSpec
Code-first language to define APIs and emit OpenAPI or JSON Schema
Design and SDKsDesign APIs with code
Open source
Uptrace
OpenTelemetry traces, metrics and logs in one self-hostable tool
APM PlatformsOpenTelemetry APM and tracing
Open source
uv
Fast Python package and project manager written in Rust
Package ManagersFast Python package manager
Looking for something else? Browse the full directory.