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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
8,583
README repos
146
Indexed repos
145
List commits
59
Forks
362
Open issues
45

Tracked list growth

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

Latest scan 2026-07-17 10:49

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Indexed repositories

11 repos matching these filters.

Language: Go
Latest repo push 2026-07-17

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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
2026-07-17
Lists
7 list mentions
First commit
2019-03-18
License
Apache-2.0
Issues
1,101 open
Sign in to like milvus-io/milvus
45,249
stars
Forks
4,123
Commits
25,109 commits
Star growth, last 7 days
+71 +0.2%
Commit velocity, last 7 days
+48 +0.2%
Website GitHub
knadh/listmonk

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Stack
Go React Vite Vue Go modules pip Yarn
GitHub topics
#campaign #campaign-management #email-marketing #email-subscription #listmonk #mailing-list
Updated
2026-07-16
Lists
3 list mentions
First commit
2018-10-25
License
AGPL-3.0
Issues
101 open
Sign in to like knadh/listmonk
22,161
stars
Forks
2,399
Commits
2,019 commits
Star growth, last 7 days
+127 +0.6%
Commit velocity, last 7 days
+2 +0.1%
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
2026-07-07
Lists
4 list mentions
First commit
2016-03-30
License
BSD-3-Clause
Issues
577 open
Sign in to like weaviate/weaviate
16,522
stars
Forks
1,338
Commits
26,667 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
getlago/lago

Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

AI dev
Stack
Go Go modules
GitHub topics
#analytics #billing #clickhouse #events #fintech #go
Updated
2026-07-16
Lists
4 list mentions
First commit
2022-02-28
License
AGPL-3.0
Issues
21 open
Sign in to like getlago/lago
10,222
stars
Forks
702
Commits
741 commits
Star growth, last 7 days
+25 +0.2%
Commit velocity, last 7 days
+2 +0.3%
Website GitHub
writefreely/writefreely

A clean, Markdown-based publishing platform made for writers. Write together and build a community.

Stack
Go Go modules npm
GitHub topics
#activitypub #beta #blogging #federation #go #markdown
Updated
2026-07-01
Lists
3 list mentions
First commit
2016-09-04
License
AGPL-3.0
Issues
110 open
Sign in to like writefreely/writefreely
5,189
stars
Forks
380
Commits
1,909 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
openflagr/flagr

Flagr is a feature flagging, A/B testing and dynamic configuration microservice

AI dev
Stack
Go gRPC Go Svelte Vite Vue Go modules npm
GitHub topics
#ab-testing #dynamic-configuration #feature-flags #feature-toggles #golang #swagger
Updated
2026-07-10
Lists
1 list mention
First commit
2017-10-02
License
Apache-2.0
Issues
2 open
Sign in to like openflagr/flagr
2,600
stars
Forks
203
Commits
857 commits
Star growth, last 7 days
0 0.0%
Commit velocity, last 7 days
0 0.0%
Website GitHub