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Open Source Alternatives

List of open-source alternatives to everyday SaaS products.

btw-so/open-source-alternatives
Open GitHub
List stars
8,830
README repos
146
Indexed repos
145
List commits
59
Forks
376
Open issues
49

Tracked list growth

GitHub stars and default-branch commits for btw-so/open-source-alternatives.

Latest scan 2026-10-17 10:50

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14 repos matching these filters.

Framework: pytest
Latest repo push 2026-10-17

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makeplane/plane

🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints, docs, and triage.

AI dev
Stack
TypeScript Celery Django Django REST Framework Express npm pnpm uv
GitHub topics
#boards #bug-tracker #django #docker #gantt #issue-tracker
Updated
2026-10-14
Lists
6 list mentions
First commit
2022-11-19
License
AGPL-3.0
Issues
1,131 open
Sign in to like makeplane/plane
60,857
stars
Forks
6,065
Commits
7,203 commits
Star growth, last 7 days
0 0.0%
Commit velocity, last 7 days
0 0.0%
Website GitHub
milvus-io/milvus

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

AI dev
Stack
Go Axum Cobra Gin gRPC Go Cargo CMake Conan
GitHub topics
#anns #cloud-native #diskann #distributed #embedding-database #embedding-similarity
Updated
2026-10-17
Lists
8 list mentions
First commit
2019-03-18
License
Apache-2.0
Issues
1,476 open
Sign in to like milvus-io/milvus
46,402
stars
Forks
4,303
Commits
25,778 commits
Star growth, last 7 days
+53 +0.1%
Commit velocity, last 7 days
+54 +0.2%
Website GitHub
PostHog/posthog

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

AI dev
Stack
Python Axum Celery Cobra Django Cargo CMake Go modules
GitHub topics
#ab-testing #ai-analytics #analytics #cdp #data-warehouse #experiments
Updated
2026-09-13
Lists
9 list mentions
First commit
2020-01-23
License
NOASSERTION
Issues
5,554 open
Sign in to like PostHog/posthog
39,762
stars
Forks
3,376
Commits
60,540 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
LAION-AI/Open-Assistant

OpenAssistant is a chat-based assistant that understands tasks, can interact with third-party systems, and retrieve information dynamically to do so.

Stack
Python Celery FastAPI Jupyter LangChain npm PEP 517 pip
GitHub topics
#ai #assistant #chatgpt #discord-bot #language-model #machine-learning
Updated
2024-08-17
Lists
2 list mentions
First commit
2022-12-13
License
Apache-2.0
Issues
296 open
Sign in to like LAION-AI/Open-Assistant
37,401
stars
Forks
3,277
Commits
3,477 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
weaviate/weaviate

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

AI dev
Stack
Go Cobra gRPC Go pytest Go modules PEP 517 pip
GitHub topics
#approximate-nearest-neighbor-search #generative-search #grpc #hnsw #hybrid-search #image-search
Updated
2026-10-04
Lists
4 list mentions
First commit
2016-03-30
License
NOASSERTION
Issues
800 open
Sign in to like weaviate/weaviate
16,866
stars
Forks
1,419
Commits
30,547 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
databendlabs/databend

Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.

AI dev
Stack
Rust pytest Cargo PEP 517 pip
GitHub topics
#ai #bigdata #cloud-native #database #elasticsearch #geospatial
Updated
2026-10-04
Lists
4 list mentions
First commit
2020-10-10
License
NOASSERTION
Issues
493 open
Sign in to like databendlabs/databend
9,455
stars
Forks
902
Commits
34,740 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
highlight/highlight

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

AI dev
Stack
TypeScript Actix Web Angular Celery Django Bundler Cargo .NET SDK
GitHub topics
#apm #full-stack #golang #metrics #monitoring #observability
Updated
2026-08-20
Lists
2 list mentions
First commit
2020-08-20
License
NOASSERTION
Issues
553 open
Sign in to like highlight/highlight
9,374
stars
Forks
675
Commits
7,064 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
activeloopai/deeplake

Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.

Stack
C++ pytest CMake pip vcpkg
GitHub topics
#agent #agentic-rag #ai #clawbot #computer-vision #datalake
Updated
2026-05-21
Lists
3 list mentions
First commit
2019-08-09
License
Apache-2.0
Issues
66 open
Sign in to like activeloopai/deeplake
9,229
stars
Forks
723
Commits
9,411 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
Flagsmith/flagsmith

Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.

AI dev
Stack
Python Django Django REST Framework Express pytest npm uv
GitHub topics
#cd #ci #continuous-integration #docker #feature-flag #feature-flaggers
Updated
2026-10-16
Lists
5 list mentions
First commit
2018-06-05
License
BSD-3-Clause
Issues
736 open
Sign in to like Flagsmith/flagsmith
6,594
stars
Forks
585
Commits
6,770 commits
Star growth, last 7 days
0 0.0%
Commit velocity, last 7 days
0 0.0%
Website GitHub
memgraph/memgraph

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.

Stack
C++ pytest Cargo CMake Conan
GitHub topics
#ai #ai-agents #ai-memory #context-graph #cypher #enterprise-context
Updated
2026-10-05
Lists
2 list mentions
First commit
2015-06-18
License
NOASSERTION
Issues
795 open
Sign in to like memgraph/memgraph
4,595
stars
Forks
286
Commits
5,392 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
featbit/featbit

Enterprise-grade feature flag platform that you can self-host. Get started - free.

AI dev
Stack
C# ASP.NET Core Entity Framework Flask gRPC Go .NET SDK Go modules Gradle
GitHub topics
#ab-test #ab-testing #asp-net-core #continuous-delivery #csharp #dotnet
Updated
2026-10-08
Lists
2 list mentions
First commit
2022-08-28
License
MIT
Issues
36 open
Sign in to like featbit/featbit
1,937
stars
Forks
148
Commits
1,158 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub