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Open Source Alternatives

Grit

stars 4.6Kforks 127

Automate code migrations at scale using a pattern-matching DSL

Developer Tools Workflow Automation Coding+4

SWE-agent

stars 20.6Kforks 2.3K

Autonomous AI agent that reads code and resolves GitHub issues

AI Agents LLM Developer Tools+4

21st.dev

stars 2.1Kforks 139

Browse and install production-ready shadcn/ui components via CLI

UI/UX Design Developer Framework Developer Tools+1

DuckDB

stars 42.2Kforks 3.9K

Fast in-process SQL analytics database, no server needed

Database Developer Tools Coding+3

Blender

stars 20.9Kforks 3.4K

Free 3D creation suite for modeling, rigging, and rendering

3D Modeling Graphic Design Video+2

OpenShot

stars 6.6Kforks 820

Free open source video editor for Linux, Mac, and Windows

Video Graphic Design Developer Tools+1

FFmpeg

stars 65.1Kforks 14.4K

Record, convert, and stream audio and video on any platform

Video Developer Tools Developer Framework+2

Keploy

stars 18.6Kforks 2.4K

AI-powered tool that converts API traffic into test cases

Testing AI Coding Assistant Developer Tools+5

MuPDF

stars 3Kforks 500

Fast open source library for rendering and editing PDFs

Developer Framework API Development Tools Coding+3

PDF4QT

stars 1.5Kforks 150

Open source PDF editor and viewer for Windows and Linux

Developer Tools Documentation Open Core+2

LLM Foundry

stars 4.4Kforks 590

Apache 2.0 LLM fine-tuning toolkit for Llama and Mistral on GPU

LLM LLMOps Developer Framework+3

Apache PDFBox

stars 3.1Kforks 967

Open source Java library for creating and parsing PDFs

Developer Framework Coding Documentation+4