Find the best open-source alternatives to popular software.

BestAlternative helps you find practical open-source replacements for paid software, compare the options that fit your workflow, and reduce recurring software costs.

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Umami

A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.

36,427
MIT

Alternative to: Google Analytics

LibreChat

Free, open source AI chat platform compatible with any AI provider. Offers a wide range of features, including agents, code interpreter, and multimodal capabilities.

36,397
MIT

Alternative to: Grok

HashiCorp Vault

HashiCorp Vault is a powerful tool for managing secrets, protecting sensitive data, and controlling access using identity-based security.

35,549
Unknown

Alternative to: 1Password

Harness

Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.

35,425
Apache-2.0

Alternative to: GitHub

1Panel

Comprehensive web-based tool for Linux server administration with integrated website, database, container, and LLM management capabilities.

35,240
GPL-3.0

Alternative to: Plesk

Directus

A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

34,965
Unknown

Alternative to: WordPress

Nextcloud

Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.

34,787
AGPL-3.0

Alternative to: Microsoft Teams

Refine

A React-based framework for rapid development of internal tools, admin panels, and dashboards with powerful data handling capabilities.

34,584
MIT

Alternative to: Retool

Khoj

An open-source personal AI application that helps you find answers, understand documents, and create new content with ease.

34,334
AGPL-3.0

Alternative to: Claude

PostHog

All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.

34,231
Unknown

Alternative to: Google Analytics

Keycloak

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

34,160
Apache-2.0

Alternative to: Auth0

OpenScreen

Free, open-source screen recording tool with professional zoom effects, annotations, and beautiful backgrounds. No account required, perfect for demos.

34,011
MIT

Alternative to: Loom

Pythagora

A VS Code extension that uses AI to help developers plan, write, test, and deploy full-stack web applications with minimal coding required.

33,776
Unknown

Alternative to: Lovable

CasaOS

CasaOS is an open-source personal cloud system that makes it easy to set up and manage your own home server

33,748
Apache-2.0

Alternative to: Umbrel

Dokploy

Streamline your deployment process with Dokploy. Manage applications and databases on any VPS using Docker and Traefik for improved performance and security.

33,655
Unknown

Alternative to: Vercel

Tabby

Self-hosted AI coding assistant that enhances productivity with context-aware suggestions and privacy-focused implementation.

33,483
Unknown

Alternative to: Claude Code

ERPNext

Open-source ERP solution offering modules for accounting, inventory, HR, CRM, and more. Customizable and scalable for businesses of all sizes.

33,357
GPL-3.0

Alternative to: SAP

Continue

Open-source AI code assistant that connects models and context to build custom autocomplete and chat experiences inside your IDE.

32,909
Apache-2.0

Alternative to: Claude Code

Medusa

Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.

32,838
MIT

Alternative to: Shopify

Kitty

High-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.

32,701
GPL-3.0

Alternative to: Warp

Dokku

A Docker-powered platform that lets you deploy Heroku-compatible applications via Git, with buildpack support and container isolation.

31,873
MIT

Alternative to: Vercel

InfluxDB

High-performance database optimized for collecting, storing, and analyzing time-stamped data in real-time across cloud, on-premises, or edge environments.

31,478
Apache-2.0

Alternative to: MongoDB

Tailscale

Deploy a modern WireGuard-based VPN with zero configuration. Connect devices securely across clouds, VPCs, and on-premises networks without firewall rules.

31,096
BSD-3-Clause

Alternative to: Zerotier

Qdrant

Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.

30,943
Apache-2.0

Alternative to: Supabase

CopilotKit

Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

30,562
MIT

Alternative to: LangChain

Dragonfly

Dragonfly is a high-performance, Redis-compatible in-memory data store that delivers up to 25x more throughput and 80% lower costs than legacy solutions.

30,428
Unknown

Alternative to: Redis

JumpServer

Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.

30,371
GPL-3.0

Alternative to: Teleport

Ntfy

A lightweight, open-source solution for sending real-time notifications to your devices, with end-to-end encryption and no sign-up required.

29,957
Apache-2.0

Alternative to: LogSnag

Lightpanda

Purpose-built headless browser that delivers 10x faster performance and 10x lower memory usage compared to Chrome headless for web automation and AI workflows.

29,869
AGPL-3.0

Alternative to: Browserbase

Postiz

Postiz offers an all-in-one solution for scheduling posts, creating content, and analyzing performance across multiple social networks.

29,854
AGPL-3.0

Alternative to: HootSuite