Find the best open-source alternatives to popular software

Game engine and development platform for 2D, 3D, and mobile games

4 alternatives

UI and UX design and prototyping tool that Adobe stopped developing

4 alternatives

Maker of IntelliJ-based IDEs for professional developers

4 alternatives

Online learning platform with university courses and certificates

3 alternatives

Read-it-later app for saving, highlighting, and reading articles

8 alternatives

On-call management and incident response platform

6 alternatives

Writing app for long-form manuscripts, research, and structure

5 alternatives

Personal AI assistant from Msty

6 alternatives

Customer messaging and support platform with chat, help desk, and AI agents

9 alternatives

Community forums and link aggregation with voting

1 alternative

Enterprise-ready authentication, SSO, and directory sync for B2B apps

11 alternatives

Encrypted password manager from Proton with aliases and passkeys

8 alternatives

Social media management platform for scheduling, monitoring, and analytics

3 alternatives

Secure outbound tunnels that expose private services without opening ports

4 alternatives

Fast, keyboard-driven email client with AI features

4 alternatives

Personal finance app that tracks spending, subscriptions, and bills

4 alternatives

Communications APIs for SMS, voice, video, and email

3 alternatives

AI meeting recorder for Zoom, Teams, and Google Meet

4 alternatives

Payment processing and billing platform for online businesses

2 alternatives

AI code review that understands your whole codebase

3 alternatives

Document and notes app with a polished, native Apple experience

11 alternatives

Sales CRM built around deal pipelines

9 alternatives

Customer support helpdesk and ticketing platform

7 alternatives

Mac app for running multiple AI coding agents in parallel

7 alternatives

No-code automation platform that connects apps and automates workflows

10 alternatives

Google service that tells humans and bots apart on web forms

6 alternatives

AI meeting assistant that records, transcribes, and summarizes meetings

4 alternatives

Social media scheduling and cross-posting tool for short videos and posts

4 alternatives

Uptime monitoring, incident management, status pages, and log management

18 alternatives

Microsoft cloud object storage for unstructured data

6 alternatives

Product analytics platform for user behavior, funnels, and retention

11 alternatives

Time tracking and reporting for freelancers and teams

6 alternatives

Professional photo editing and retouching software

3 alternatives

Compliance automation platform for SOC 2, ISO 27001, and other frameworks

4 alternatives

Networked note-taking tool built on bidirectional links and daily notes

13 alternatives

Simple to-do lists built into Gmail, Calendar, and Google Workspace

4 alternatives

Personal finance app from Intuit for budgeting and spending, since discontinued

11 alternatives

Compliance automation platform for SOC 2, ISO 27001, and other frameworks

4 alternatives

Cloud development environments launched from GitHub repositories

1 alternative

Project management and team communication platform

17 alternatives

Messaging automation platform for email, push, SMS, and in-app messages

4 alternatives

Customer service and support ticketing platform

9 alternatives

Customer support and messaging platform

4 alternatives

Short-video social network with an algorithmic feed

1 alternative

Hosted documentation platform with AI search and API reference

4 alternatives

Personal cloud computer with an AI assistant

7 alternatives

Low-code platform for building internal tools, dashboards, and admin panels

16 alternatives

Open-source automation server for building, testing, and deploying software

4 alternatives

Email marketing and automation platform for newsletters and campaigns

11 alternatives

Design tool for drawing and building interfaces with code-like precision

6 alternatives