Skip to main content
OpenSourceAlternatives

Directory

All software

871 products in total: 615 OSI-approved open source, 19 source-available, 140 unresolved-license Projects, and 97 proprietary. Structural source=open URLs remain supported; use the license-policy filter for the canonical distinction.

Confluence

Confluence

Enterprise wiki wired into Atlassian's tooling

CompanyAtlassian
Since2004
PricingFreemium

Confluence is where large organisations put documentation that has to outlive the people who wrote it. Spaces, permissions, page trees, and approval workflows are built for scale and governance rather than for speed.

Alternative toNotion
Modal

ModalAI

Serverless cloud for running AI code on GPUs without servers

CompanyModal Labs, Inc.
Since2023
PricingPaid

Modal is a serverless cloud for running Python AI code on GPUs without servers. Functions scale from zero to thousands of GPUs, billed only for seconds used.

Alternative toBeam
LastPass

LastPass

Browser-first password manager with a long history

CompanyLastPass
Since2008
PricingFreemium

LastPass popularised the browser based password manager and for years was the default recommendation for people moving off reused passwords.

Alternative to1Password
Crowdin

Crowdin

Localisation management for software and content

CompanyCrowdin
Since2009
PricingFreemium

Crowdin coordinates the people, files, and machine translation involved in shipping a product in more than one language. Source strings sync from a repository, translators work in the web editor, and translated files come back on merge.

Neovim

NeovimOpen

Hyperextensible Vim-based text editor

Stars103K
Commitjust now
LicenseApache-2.0

Neovim is a hyperextensible Vim-based text editor with built-in Lua scripting and remote-plugin APIs, maintained by its community without a corporate owner.

Alternative toCursor
Paperclip

PaperclipAIOpen

Open-source app people use to manage AI agents for work

Stars100.6K
Commitjust now
LicenseMIT

Paperclip is an open-source app for managing teams of AI agents for work, with org charts, goals, budgets, and governance, self-hosted via local install, Docker, or a server.

Alternative toOpenClaw
Zoom

Zoom

Video meetings that hold up on a bad connection

CompanyZoom Communications
Since2013
PricingFreemium

Zoom won on the least glamorous quality possible: calls connected, and kept working on poor networks when competitors did not. Everything else it has added sits on top of that reliability.

OpenHands

OpenHandsAIOpen

Autonomous agents that complete real engineering tasks

Stars85.8K
Commit8h ago
LicenseMIT

OpenHands runs agents that plan and execute multi-step engineering work: reading a repository, editing files, running tests, and iterating until a task is done. Each agent works inside a sandboxed runtime rather than on the host machine.

Alternative toGitHub Copilot
Maple

Maple

Commercial math software for symbolic and numeric computation

CompanyMaplesoft
Since1982
PricingFree

Maple is commercial mathematics software from Maplesoft combining symbolic computation with numeric solvers and visualization for engineers and students.

Home Assistant

Home AssistantOpen

Local-first smart home automation with no cloud dependency

Stars90.2K
Commit8h ago
LicenseApache-2.0

Home Assistant runs on a box in your house and talks to devices directly rather than through their manufacturers' servers. That single design decision is why automations keep working when the internet is down, and why a discontinued cloud service does not brick your lights.

Alternative toGoogle Assistant
LocalSend

LocalSendOpen

Share files to nearby devices.

Stars94K
Commitjust now
LicenseApache-2.0

LocalSend is a free, open-source app that sends files and text directly between nearby devices over the local network, with no account, cloud, or internet needed.

Alternative toSyncthingNextcloud
OpenCut

OpenCutOpen

Video editor that runs entirely in the browser

Stars88.2K
Commit22d ago
LicenseMIT

OpenCut is a timeline video editor that installs nothing and uploads nothing. Media stays in the browser, processing happens locally through WebCodecs, and there is no account step before you can cut a clip.

Alternative toCapCut
Zed

Zed

Fast, collaborative, AI-assisted open source code editor

Stars91.7K
Commitjust now
LicenseGPL-3.0-or-later

Zed is a free, open source code editor written in Rust and built by Zed Industries, the company founded by the creators of the Atom editor. It targets developers who feel mainstream JavaScript-based editors waste the performance of modern hardware, pairing GPU-accelerated rendering with a local-first architecture that keeps files on disk.

Alternative toCursor
Mermaid

MermaidOpen

Text-defined diagrams: flowcharts, sequences, and Gantt in Markdown

Stars90.6K
Commitjust now
LicenseMIT

Mermaid is a JavaScript tool that renders Markdown-inspired text into flowcharts, sequence diagrams, and Gantt charts, rendered natively in Markdown hosts such as GitHub.

Alternative toExcalidrawdraw.io
Orca

OrcaAIOpen

Agent development environment running coding agents in parallel

Stars90.2K
Commitjust now
LicenseMIT

Orca is a free, open-source agent development environment that runs Claude Code, Codex, and other coding agents in parallel, each in its own git worktree.

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
Friendly Captcha

Friendly Captcha

Privacy-friendly CAPTCHA with invisible proof-of-work puzzles

CompanyFriendly Captcha GmbH
Since2020
PricingFreemium

Friendly Captcha is a privacy-first bot protection service that secures websites, forms, and APIs with invisible proof-of-work puzzles instead of image challenges.

Alternative toreCAPTCHA
YNAB

YNAB

Personal budgeting with spending plans, savings targets, and account imports

CompanyYNAB
Since2004
PricingPaid

YNAB is a subscription budgeting application for assigning income to spending categories, tracking account transactions, and planning savings goals.

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
Quizlet

Quizlet

Flashcard study sets with practice modes and optional premium learning tools

CompanyQuizlet
Since2007
PricingFree

Quizlet is a study application for creating and reviewing flashcard sets, with practice tools for learners and classes.

RescueTime

RescueTime

Automatic activity tracking with focus tools and project timesheets

CompanyRescueTime
Since2008
PricingFree

RescueTime tracks application and website activity to help users review time use and organize focused work. Its Timesheets product organizes time by client, project, and task.

New Relic

New Relic

Application performance monitoring with usage based pricing

CompanyNew Relic
Since2008
PricingFree

New Relic was the application performance monitoring product for a generation of web applications, and its repricing to per-user plus per-gigabyte was an explicit attempt to answer the complaint about host based billing.

Alternative toDatadog
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
NetApp

NetApp

Enterprise data storage and management for hybrid cloud

CompanyNetApp
Since1993
PricingFree

NetApp is an enterprise data storage platform that runs the ONTAP operating system on all-flash arrays and in public clouds.