Open Source Web Development Tools

Alternative tomacOS

DHH's opinionated Linux distribution for developer workstations

• 45,322 GitHub stars
• MITLicence MIT

Alternative toSigmaOS

Focus-first Firefox fork with workspaces and split-view browsing

• 45,037 GitHub stars
• MPL-2.0Licence MPL-2.0

Alternative toBrowserbase

Browser automation CLI with ref-based snapshots for AI agents

• 44,324 GitHub stars
• Apache-2.0Licence Apache-2.0
• #AI Agents

Alternative toKhanmigo

Open source multi-agent AI classroom with one-click lesson generation.

• 41,149 GitHub stars
• MITLicence MIT
• #LLM

Alternative toRetool

Build internal tools with a low-code drag-and-drop UI

• 41,095 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toPrepperDisk

Offline Wikipedia, local AI, and maps on hardware you own

• 40,711 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toParasoft C/C++test

C++ testing and mocking framework by Google

• 39,654 GitHub stars
• BSD-3-ClauseLicence BSD-3-Clause

Alternative toContentful

Wrap any SQL database with REST and GraphQL APIs and an admin UI

• 38,631 GitHub stars

Alternative toVercel AI SDK

Add in-app AI copilot chat and actions to any React application

• 38,138 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toPerplexity AI

AI-powered answering engine for private, cited web searches

• 37,553 GitHub stars
• MITLicence MIT