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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

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Latest scan 2026-07-17 10:49

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26 repos matching these filters.

Package manager: go-modules

Latest repo push 2026-07-17

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gohugoio/hugo

The world’s fastest framework for building websites.

AI dev

Stack

Go Cobra gRPC Go Tailwind CSS Go modules npm

GitHub topics

#blog-engine #cms #content-management-system #documentation-tool #go #hugo

Updated: 2026-07-13
Lists: 2 list mentions
First commit: 2013-07-04
License: Apache-2.0
Issues: 235 open

89,005

stars

Forks: 8,295
Commits: 9,843 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

hoppscotch/hoppscotch

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Stack

TypeScript Axum Express NestJS Svelte Cargo Go modules npm

GitHub topics

#api #api-client #api-rest #api-testing #developer-tools #graphql

Updated: 2026-07-02
Lists: 8 list mentions
First commit: 2019-08-21
License: MIT
Issues: 744 open

79,737

stars

Forks: 5,951
Commits: 6,157 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

Website GitHub

prometheus/prometheus

The Prometheus monitoring system and time series database.

AI dev

Stack

Go Cobra gRPC Go React Vite Go modules npm pnpm

GitHub topics

#alerting #graphing #hacktoberfest #metrics #monitoring #prometheus

Updated: 2026-07-16
Lists: 5 list mentions
First commit: 2012-11-24
License: Apache-2.0
Issues: 883 open

65,175

stars

Forks: 10,649
Commits: 18,136 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

remotion-dev/remotion

🎥 Make videos programmatically with React

AI dev

Stack

TypeScript Astro Express Next.js React Bun Bundler Cargo

GitHub topics

#javascript #react #video

Updated: 2026-07-16
Lists: 1 list mention
First commit: 2020-06-23
License: NOASSERTION
Issues: 144 open

53,441

stars

Forks: 3,870
Commits: 34,256 commits
Star growth, last 7 days: +634 +1.2%
Commit velocity, last 7 days: +100 +0.3%

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: 2026-07-17
Lists: 7 list mentions
First commit: 2019-03-18
License: Apache-2.0
Issues: 1,101 open

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

siyuan-note/siyuan

A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.

AI dev

Stack

TypeScript Cobra Electron Gin Go modules pnpm

GitHub topics

#ai-agent #digital-garden #electron #knowledge-base #knowledge-graph #local-first

Updated: 2026-07-12
Lists: 5 list mentions
First commit: 2020-08-30
License: AGPL-3.0
Issues: 330 open

45,053

stars

Forks: 2,882
Commits: 24,098 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

mattermost/mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

AI dev

Stack

TypeScript Cobra Express gRPC Go React Go modules npm

GitHub topics

#collaboration #golang #hacktoberfest #mattermost #monorepo #react

Updated: 2026-07-07
Lists: 6 list mentions
First commit: 2015-06-15
License: NOASSERTION
Issues: 921 open

38,342

stars

Forks: 8,812
Commits: 22,815 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

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 Cargo CMake Go modules

GitHub topics

#ab-testing #ai-analytics #analytics #cdp #data-warehouse #experiments

Updated: 2026-07-17
Lists: 6 list mentions
First commit: 2020-01-23
License: NOASSERTION
Issues: 4,985 open

35,921

stars

Forks: 2,996
Commits: 51,030 commits
Star growth, last 7 days: +505 +1.4%
Commit velocity, last 7 days: +941 +1.9%

Website GitHub

dokku/dokku

A docker-powered PaaS that helps you build and manage the lifecycle of applications

Stack

Shell Go modules npm pip

GitHub topics

#buildpack #containers #devops #docker #dokku #heroku

Updated: 2026-07-16
Lists: 3 list mentions
First commit: 2013-06-08
License: MIT
Issues: 28 open

32,040

stars

Forks: 2,057
Commits: 14,013 commits
Star growth, last 7 days: +19 +0.1%
Commit velocity, last 7 days: +6 0.0%

Website GitHub

binwiederhier/ntfy

Send push notifications to your phone or desktop using PUT/POST

Stack

Go gRPC Go React Vite Go modules npm pip

GitHub topics

#curl #notifications #ntfy #ntfysh #pubsub #push-notifications

Updated: 2026-07-07
Lists: 2 list mentions
First commit: 2021-10-22
License: Apache-2.0
Issues: 329 open

31,491

stars

Forks: 1,371
Commits: 3,919 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

Website GitHub

mattermost-community/focalboard

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

Stack

TypeScript gRPC Go React .NET SDK Go modules npm

GitHub topics

#asana #collaboration #goal-tracking #golang #hacktoberfest #kanban-board

Updated: 2026-05-18
Lists: 6 list mentions
First commit: 2020-10-08
License: NOASSERTION
Issues: 783 open

26,274

stars

Forks: 2,557
Commits: 3,646 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

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

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

windmill-labs/windmill

Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

AI dev

Stack

Rust Axum Svelte SvelteKit Tailwind CSS Bun Cargo Go modules

GitHub topics

#low-code #open-source #platform #postgresql #python #self-hostable

Updated: 2026-07-17
Lists: 2 list mentions
First commit: 2022-05-05
License: NOASSERTION
Issues: 798 open

17,172

stars

Forks: 1,032
Commits: 13,940 commits
Star growth, last 7 days: +42 +0.2%
Commit velocity, last 7 days: +86 +0.6%

Website GitHub

questdb/questdb

QuestDB is a high performance, open-source, time-series database

AI dev

Stack

Java Symfony Cargo CMake Composer

GitHub topics

#capital-markets #cpp #database #financial-analysis #grafana #java

Updated: 2026-07-07
Lists: 2 list mentions
First commit: 2014-04-28
License: Apache-2.0
Issues: 862 open

17,164

stars

Forks: 1,619
Commits: 6,195 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: 2026-07-07
Lists: 4 list mentions
First commit: 2016-03-30
License: BSD-3-Clause
Issues: 577 open

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

gotify/server

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

Stack

Go Gin React Vite Go modules npm Yarn

GitHub topics

#api #cloud #free-software #golang #gotify #hosting

Updated: 2026-07-16
Lists: 3 list mentions
First commit: 2018-01-19
License: NOASSERTION
Issues: 79 open

15,345

stars

Forks: 838
Commits: 914 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

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

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

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: 2026-04-16
Lists: 2 list mentions
First commit: 2020-08-20
License: NOASSERTION
Issues: 555 open

9,331

stars

Forks: 667
Commits: 7,060 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

nhost/nhost

The Open Source Firebase Alternative with GraphQL.

AI dev

Stack

Go Astro Expo Express Gin Bun Go modules npm

GitHub topics

#authentication #backend #backend-as-a-service #database #firebase #flutter

Updated: 2026-07-06
Lists: 3 list mentions
First commit: 2021-02-09
License: MIT
Issues: 115 open

9,229

stars

Forks: 595
Commits: 8,427 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

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

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

jitsucom/jitsu

Jitsu is an open-source Segment alternative. Fully-scriptable data ingestion engine for modern data teams. Set-up a real-time data pipeline in minutes, not days

AI dev

Stack

TypeScript Cobra Express Gin gRPC Go Go modules npm pnpm

GitHub topics

#bigquery #clickhouse #data-collection #data-connectors #data-integration #golang

Updated: 2026-07-06
Lists: 2 list mentions
First commit: 2022-06-22
License: MIT
Issues: 27 open

4,793

stars

Forks: 356
Commits: 3,109 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

Website GitHub

linuxfoundation/crowd.dev

LFX Community Data Platform (CDP)

AI dev

Stack

TypeScript Express FastAPI gRPC Go pytest Go modules npm pip

GitHub topics

#cdp #community #open-source

Updated: 2026-07-06
Lists: 2 list mentions
First commit: 2022-08-25
License: Apache-2.0
Issues: 35 open

3,367

stars

Forks: 728
Commits: 4,602 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

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

ycm-core/ycmd

A code-completion & code-comprehension server

Stack

C++ Cargo CMake .NET SDK

GitHub topics

#code-analysis #code-completion #editor #semantic-engine

Updated: 2026-06-29
Lists: 1 list mention
First commit: 2014-05-13
License: GPL-3.0
Issues: 33 open

1,736

stars

Forks: 777
Commits: 3,356 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

SolidInvoice/SolidInvoice

Simple and elegant invoicing solution.

AI dev

Stack

PHP Cobra gRPC Go React Symfony Bun Composer Go modules

GitHub topics

#billing #billing-application #freelancer #hacktoberfest #invoice #invoicing

Updated: 2026-07-11
Lists: 2 list mentions
First commit: 2012-02-14
License: MIT
Issues: 88 open

932

stars

Forks: 226
Commits: 5,185 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

dotenx/dotenx

No-code and Low-code all-in-one platform to build landing pages, websites, web applications, APIs, automations. An alternative for Wix, Webflow, Zapier, and more

Stack

TypeScript Cobra Gin gRPC Go React Go modules npm pip

GitHub topics

#application-launcher #automation #backend #form #golang #no-code

Updated: 2024-04-13
Lists: 1 list mention
First commit: 2022-01-30
License: NOASSERTION
Issues: 27 open

647

stars

Forks: 67
Commits: 1,202 commits
Star growth, last 7 days: No 7-day history
Commit velocity, last 7 days: No 7-day history

Website GitHub

Activity

Default branch: main
Last pushed: 2024-11-08
GitHub updated: 2026-07-16
Created: 2023-05-22
First commit: -
Last scanned: 2026-07-17 10:49
Watchers: 65

Indexed repo mix

Repo stars: 3,357,450
Repo forks: 410,200
Active: 144
Archived: 1

Languages

TypeScript (59) PHP (19) JavaScript (13) Go (11) Python (8) Java (7) Ruby (6) C++ (4) Rust (4) Clojure (3) C# (1) Dart (1)