AI Agents Open Source Tools

InCustomer Support

Fast, type-safe C++ formatting that replaces printf and iostreams

• 25,884 GitHub stars
• MITLicence MIT

Alternative toZapier

Build AI-powered automations and agents without vendor lock-in

• 25,140 GitHub stars
• MITLicence MIT

Alternative toSemrush

Open source alternative to Semrush and Ahrefs

• 24,272 GitHub stars
• MITLicence MIT

Alternative toVViralClone.ai

Clone viral video formats with AI agents, batch 100+ variants

• 24,249 GitHub stars
• CustomLicence Apache-2.0 with additional terms
• #Video

Alternative toHugging Face Inference Endpoints

Local inference engine for DeepSeek V4 Flash/PRO and GLM 5.2

• 23,970 GitHub stars
• MITLicence MIT
• #LLM

Alternative toRagie AI

Comprehensive multimodal document processing framework

• 23,910 GitHub stars
• MITLicence MIT
• #RAG

Alternative toSpreadJS

Embed spreadsheets, docs, and slides in your own product

• 22,690 GitHub stars
• Apache-2.0Licence Apache-2.0
• #AI Agents

Alternative toVoiceflow

Visual chatbot builder with LLM integration and live deployment

• 22,570 GitHub stars
• MITLicence MIT
• #Chatbots

Alternative toOpenAI

Alibaba's Apache 2.0 LLM in sizes from small to frontier scale

• 21,700 GitHub stars
• Apache-2.0Licence Apache-2.0
• #LLM

Alternative toAtScale

Headless BI platform with a shared semantic layer for your data

• 21,046 GitHub stars

Alternative toLasso Security

Scan AI agent skills for vulnerabilities and risks

• 20,727 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Security

Alternative toDevin AI

Autonomous AI agent that reads code and resolves GitHub issues

• 20,603 GitHub stars
• MITLicence MIT
• #AI Agents