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OpenSourceAlternatives

Collection

Self-hosted

Projects you can run entirely on your own infrastructure.

LobeChat

LobeChatAI

Polished chat interface for many model providers

Stars82.1K
Commit8h ago
LicenseUnknown

LobeChat is the most designed of the open chat front ends. Plugins, an assistant marketplace, voice input and output, and vision support are all present, and the interface holds up next to commercial products.

Alternative toChatGPT
Crawl4AI

Crawl4AIAIOpen

Open-source web crawler that turns pages into LLM-ready markdown

Stars84.7K
Commitjust now
LicenseApache-2.0

Crawl4AI is a Python crawler that turns websites into clean markdown and typed JSON for RAG pipelines, AI agents, and data pipelines.

Alternative toBrowserbase
Netdata

NetdataOpen

Real-time infrastructure monitoring with per-second metrics and alerts

Stars80.9K
Commitjust now
LicenseGPL-3.0

Netdata is a self-hosted monitoring agent that collects per-second metrics from systems, containers, and applications, with built-in dashboards, alerts, and anomaly detection.

Alternative toDatadog
Uptime Kuma

Uptime KumaOpen

Self-hosted uptime monitoring with a clean status page

Stars76.4K
Commit4d ago
LicenseMIT

Uptime Kuma monitors HTTP endpoints, TCP ports, containers, and certificates, and notifies through almost a hundred channels. Setup is a container and a few minutes.

Alternative toDatadog
Elasticsearch

Elasticsearch

Distributed search and analytics engine with vector search

Stars78.2K
Commitjust now
LicenseAGPL-3.0-only

Elasticsearch is a distributed search and analytics engine for near-real-time full-text, vector, hybrid, and geospatial search.

Alternative toMeilisearchAlgolia
Hoppscotch

HoppscotchOpen

API client that runs in the browser and stays fast

Stars74.2K
Commit1d ago
LicenseMIT

Hoppscotch is an API client that opens in a tab. Requests, collections, environments, and history are all there, and it starts in the time a desktop client takes to check for updates.

Alternative toPostman
GPT4All

GPT4AllAIOpen

Private desktop chatbot that runs open LLMs fully on-device

Stars77.4K
Commit1y ago
LicenseMIT

GPT4All is a free desktop app from Nomic that runs open language models entirely on your own computer, with no cloud calls.

Alternative toOllama
AppFlowy

AppFlowyAIOpen

Open-source AI workspace for wikis, docs, and kanban projects

Stars77.1K
Commitjust now
LicenseAGPL-3.0

AppFlowy is an open-source workspace for wikis, docs, and kanban project boards. It presents itself as a self-hostable alternative to Notion and imports Notion workspaces from CSV files.

Alternative toNotion
Apache Superset

Apache SupersetOpen

Self-hosted BI platform for exploring data and building dashboards

Stars75K
Commitjust now
LicenseApache-2.0

Apache Superset is a self-hosted business intelligence platform for exploring databases and building interactive dashboards with a visual query builder and SQL Lab.

Alternative toGrafana
Syncthing

SyncthingOpen

Continuous file sync between your own devices only

Stars72.1K
Commit3d ago
LicenseMPL-2.0

Syncthing synchronises folders directly between devices with no server in the middle. There is no account, no storage quota, and no third party holding the data, because the data never leaves the set of machines you nominate.

Alternative toDropbox
OpenBB Terminal

OpenBB TerminalAIOpen

Open-source investment research terminal with Python-first market data

Stars73.9K
Commitjust now
LicenseApache-2.0

OpenBB Terminal is an open-source financial terminal for market data, investment research, and analytics, now developed as the Open Data Platform.

Alternative toFincept Terminal
Grafana

GrafanaOpen

Dashboards over whatever data you already store

Stars71.2K
Commit8h ago
LicenseAGPL-3.0

Grafana is the visualisation layer that sits above other systems rather than a monitoring stack of its own. It queries Prometheus, Loki, PostgreSQL, ClickHouse, and dozens of other sources, and puts them on the same dashboard.

Alternative toDatadog
Strapi

Strapi

Open-source headless CMS turning content models into REST and GraphQL APIs.

Stars73.3K
Commitjust now
LicenseMIT (Community Edition); proprietary Enterprise Edition for ee/ components

Strapi is a self-hosted, open-source headless CMS built with JavaScript and TypeScript that turns content models designed in a no-code builder into REST and GraphQL APIs behind a customizable admin panel.

Alternative toPayloadKeystoneJS
Cline

ClineAIOpen

Open-source AI coding agent for VS Code, JetBrains, and the terminal

Stars69.8K
Commitjust now
LicenseApache-2.0

Cline is an open-source AI coding agent that reads, edits, and runs code inside VS Code, JetBrains IDEs, and the terminal.

Mem0

Mem0AIOpen

Open-source memory layer for AI agents and apps

Stars67K
Commitjust now
LicenseApache-2.0

Mem0 is an open-source memory layer that gives AI agents and apps persistent memory across sessions, with self-hosted and managed platform options.

Alternative toLetta
AnythingLLM

AnythingLLMAIOpen

Self-hosted AI workspace for chatting with documents and running agents

Stars66.7K
Commitjust now
LicenseMIT

AnythingLLM is a self-hostable AI workspace for chatting with documents, running AI agents, and switching between local and hosted language models.

Alternative toOpen WebUI
Prometheus

PrometheusOpen

Open-source metrics monitoring with PromQL queries and alerting

Stars66.5K
Commitjust now
LicenseApache-2.0

Prometheus is an open-source monitoring system that scrapes metrics into a dimensional time-series database and evaluates PromQL rules for alerting.

Alternative toNagiosGrafana
Ladybird

Ladybird

Truly independent web browser with an engine built from scratch

Stars66.5K
Commitjust now
LicenseBSD-2-Clause

Ladybird is building a new web browser engine from scratch, backed by a nonprofit and free of user monetization such as default search deals.

Alternative toBraveChrome
Docusaurus

DocusaurusOpen

React MDX docs sites with versioning, search, and static output

Stars66.4K
Commitjust now
LicenseMIT

Docusaurus is a React-based static site generator that turns MDX documents into documentation sites with versioning, translations, and search.

Alacritty

AlacrittyOpen

GPU-accelerated terminal emulator configured in plain-text TOML

Stars65.9K
Commitjust now
LicenseApache-2.0

Alacritty is a GPU-accelerated terminal emulator for BSD, Linux, macOS, and Windows that keeps its settings in a plain-text TOML file.

NocoDB

NocoDB

No-code spreadsheet interface over your own database

Stars65.2K
Commitjust now
LicenseSustainable Use License

NocoDB is a no-code database platform with a spreadsheet interface that connects to the operator's own Postgres or MySQL database or runs on its hosted database at million-row scale.

Alternative toBaserowAirtable
Memos

MemosOpen

Self-hosted Markdown memo hub for quick capture

Stars63.7K
Commitjust now
LicenseMIT

Memos is a self-hosted, MIT-licensed memo hub: write Markdown notes to a private timeline in seconds, then share individual memos by link.

Alternative toNotion
Ghostty

GhosttyOpen

Fast, native, GPU-accelerated terminal emulator

Stars62K
Commitjust now
LicenseMIT

Ghostty is a free, open source terminal emulator for macOS and Linux that pairs platform-native windows with GPU-accelerated rendering.

Alternative toAlacrittyiTerm2
PocketBase

PocketBaseOpen

Open source backend in one file with realtime database and auth

Stars61.4K
Commitjust now
LicenseMIT

PocketBase is an open source backend with an embedded SQLite database, realtime subscriptions, auth, file storage, and an admin dashboard in one executable.