All Open Source Apps
Every app scored on repo health, technical quality, and dependency risk — before you install anything.
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Parse Server
Databases · Developer Tools
Self-hosted Backend-as-a-Service for Node.js with REST, GraphQL, real-time Live Query, cloud code, and pluggable adapters for any infrastructure.
TiDB
AI Development · Databases
AI-Native Distributed SQL Database for Agentic Workloads
Apache Airflow
Data Engineering
Define, schedule, and monitor complex data workflows as Python code — with a powerful UI, 80+ provider integrations, and battle-tested scalability across thousands of production deployments.
Argo Workflows
Data Engineering · Devops
The most popular Kubernetes-native workflow engine for orchestrating containerized DAGs, ML pipelines, CI/CD, and parallel batch jobs at scale.
Airbyte
Data Engineering · Developer Tools
Open-source ELT platform with 600+ connectors for moving data from any source to warehouses, lakes, and AI agents.
Appwrite
Authentication · Databases · Developer Tools
Open-source backend platform with Auth, Databases, Storage, Functions, Messaging, Realtime, and Sites — deploy via Docker or use Appwrite Cloud.
Databend
Data Engineering · Databases
Open-source enterprise data warehouse unifying analytics, vector search, full-text search, and AI agent orchestration in a single Rust-built engine on S3.
Qdrant
AI Development · Databases · Search
Open-source vector database and search engine built in Rust for production-grade AI applications — from semantic search to RAG pipelines and recommendation systems.
Redash
Analytics · Data Engineering
Redash lets anyone connect to 35+ SQL and NoSQL data sources, write a query in the browser, and turn the result into a shared dashboard — no separate BI suite required.
Weaviate
Databases · Search
Open-source vector database combining semantic search, hybrid queries, RAG, and image search in a single cloud-native system built for production scale.
ChartBrew
Analytics · Databases
Open-source reporting platform to build live dashboards from SQL, NoSQL, APIs, and SaaS tools with an AI assistant that creates charts from natural language.
Dolt
Data Engineering · Databases · Developer Tools
The SQL database you can branch, merge, diff, and clone — Git for your data, MySQL-compatible and ready for multi-agent AI workflows.
LanceDB
AI Development · Databases
Open-source, embedded vector database built on the Lance columnar format for fast multimodal search across billions of vectors, backed by Y Combinator (W23).
WrenAI
AI Agents · Analytics · Data Engineering
Open-source GenBI engine that lets AI agents turn natural-language questions into governed SQL, charts, and shareable dashboards across 20+ data sources — no vendor lock-in, no black-box prompts.
Baserow
Databases · No Code Platforms
Open-source no-code platform to build databases, apps, automations, and AI agents — self-hosted or cloud, with full data ownership.
marimo
Data Engineering · Developer Tools
A reactive Python notebook that eliminates hidden state, runs reproducibly, and deploys as a web app or script — stored as pure Python, built for the AI era.
ParadeDB
Analytics · Databases · Search
Born out of Y Combinator's S2023 batch, ParadeDB is a Postgres extension that delivers Elasticsearch-quality BM25 search and real-time analytics without a separate search cluster to manage.
PocketBase
Authentication · Databases · Ecommerce
Open Source realtime backend in 1 file — embedded SQLite, auth, file storage, and admin UI as a single Go binary.
SpiceDB
Authentication · Databases · Security
An open source, Google Zanzibar-inspired authorization database that models permissions as relationships and evaluates fine-grained access checks at massive scale with single-digit millisecond latency.
PeerDB
Data Engineering · Databases
Postgres-native ETL that streams change data capture in real time to Snowflake, BigQuery, ClickHouse, S3, and Kafka — up to 10x faster than general-purpose pipelines, managed through a familiar Postgres SQL interface.
Sonic
Databases · Search
Fast, lightweight, schema-less search backend in Rust — microsecond queries, 30MB RAM, no document storage required.
cocoindex
AI Development · Data Engineering
An incremental data indexing engine that keeps AI agent context perpetually fresh by reprocessing only what changed.
Fluree DB
Databases
A temporal, verifiable graph database with git-like branching, integrated vector/text/geo search, and RDF/SPARQL/JSON-LD/openCypher support — benchmarked at 10.4x faster than the next database on the full Wikidata dump.
Formance Ledger
Databases · Developer Tools · Invoicing Finance
The programmable open source core ledger for fintech — build money-moving applications with atomic multi-posting transactions, account-based modeling, and Numscript, a built-in DSL for financial logic.