Building RAG Apps

Discover the essential tools and technologies for building Retrieval-Augmented Generation applications. From language models to vector databases, find everything you need to create intelligent AI systems.

39+
Tools & Models
5
Categories
100%
Free Access
2025
Updated
All Categories (39)Language Models (8)Frameworks (6)Databases (8)Text Extraction (7)Embeddings (8)

Large-Language Models

8 of 8 tools
OpenAI

OpenAI

GPT-4 and RAG capabilities

GPT-4API
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Llama

Llama

Meta's open-source LLM family

Open SourceOpen SourceMeta
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Claude

Claude

Anthropic's powerful reasoning model

ReasoningSafety
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Gemini

Gemini

Google's multimodal foundation model

MultimodalGoogle
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Mistral

Mistral

High-performing small language models

Open SourceEfficientEuropean
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DeepSeek

DeepSeek

Commercial-grade multilingual model

MultilingualCoding
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Qwen 2.5

Qwen 2.5

Alibaba's advanced large language model

Open SourceAlibabaMultilingual
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Gemma

Gemma

Lightweight Google open model

Open SourceLightweightGoogle
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Frameworks & Model Access

6 of 6 tools
Langchain

Langchain

Chaining LLM workflows

Open SourcePythonJavaScript
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Llamaindex

Llamaindex

Data indexing for LLM apps

Open SourceIndexingRAG
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Haystack

Haystack

Modular NLP framework

Open SourceNLPPipelines
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Ollama

Ollama

Local LLM runtime environment

Open SourceLocalRuntime
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Huggingface

Huggingface

Open-source ML community

Open SourceCommunityModels
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Open Router

Open Router

Unified API for multiple models

APIUnified
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Databases

8 of 8 tools
Postgres

Postgres

Relational DB with vector extensions

Open SourceSQLVector Extensions
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Milvus

Milvus

Vector database for AI applications

Open SourceVectorScalable
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Weaviate

Weaviate

Knowledge graph + vector search

Open SourceKnowledge GraphGraphQL
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Pinecone

Pinecone

Vector database for RAG

ManagedVector
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FAISS

FAISS

Facebook AI Similarity Search

Open SourceFacebookSimilarity
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pgvector

pgvector

Vector extension for Postgres

Open SourcePostgreSQLExtension
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poVector

poVector

Efficient Postgres vector engine

Open SourceRustPerformance
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Chroma

Chroma

Embeddings database for developers

Open SourceDeveloper FriendlyPython
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Text Extraction

7 of 7 tools
Llamaparse

Llamaparse

Structured document parsing

PDFStructured
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Docling

Docling

Document conversion pipeline

Open SourcePipelineIBM
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Megaparser

Megaparser

Multi-format text extraction

Multi-formatOCR
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Firecrawl

Firecrawl

Web scraping for RAG

Open SourceWeb ScrapingAPI
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ScrapeGraph AI

ScrapeGraph AI

Visual web scraping tool

Open SourceVisualAI
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Document AI

Document AI

Google's intelligent document processing

GoogleOCR
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Claude API

Claude API

Advanced document analysis

AnthropicAnalysis
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Text Embeddings

8 of 8 tools
Nomic

Nomic

Embedding models

Open SourceAtlasOpen Source
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Cognita

Cognita

High-quality embedding generation

Open SourceTrueFoundryRAG
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LLMWare

LLMWare

Enterprise-ready embeddings

Open SourceEnterpriseSecure
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JinjaAI

JinjaAI

Template engine with embedding support

Open SourceTemplatesPython
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OpenAI

OpenAI

State-of-the-art embeddings

CommercialHigh Quality
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Gemini

Gemini

Multimodal embedding support

GoogleMultimodal
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Cohere

Cohere

Language understanding embeddings

MultilingualEnterprise
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Ollama

Ollama

Local embedding generation

Open SourceLocalPrivacy
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