# AI tools for “RAG preprocessing” 93 matching tools; showing 24, ranked by relevance. Filters: `group=coding-development` | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [LlamaIndex](https://openaitools.app/tool/llamaindex) | 387,910 | +19.9% | Freemium, Contact for Pricing | Turn any document into AI-ready context with agentic parsing and extraction | semantic match | [.md](https://openaitools.app/tool/llamaindex.md) | | 2 | [Dify](https://openaitools.app/tool/dify-ai) | 819,691 | -15% | Freemium | Build, deploy, and govern production-ready agentic AI workflows | semantic match | [.md](https://openaitools.app/tool/dify-ai.md) | | 3 | [Removal.AI](https://openaitools.app/tool/removal-ai) | 1,254,492 | -3.5% | Freemium | Remove image backgrounds in seconds, free and fully automated | semantic match | [.md](https://openaitools.app/tool/removal-ai.md) | | 4 | [Monkt](https://openaitools.app/tool/monkt) | 51,826 | +47.4% | Paid | Turn any document into AI-ready Markdown or structured JSON | semantic match | [.md](https://openaitools.app/tool/monkt.md) | | 5 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | semantic match | [.md](https://openaitools.app/tool/treg.md) | | 6 | [Ragie](https://openaitools.app/tool/ragie) | 7,557 | -26.8% | Freemium, Free Trial, Free | The managed context engine for agents, assistants and apps | semantic match | [.md](https://openaitools.app/tool/ragie.md) | | 7 | [WaterCrawl](https://openaitools.app/tool/watercrawl) | 5,392 | +42.7% | Freemium | Open-source web crawling that turns sites into LLM-ready data | keywords 63%; semantic match | [.md](https://openaitools.app/tool/watercrawl.md) | | 8 | [OpenAssistantGPT](https://openaitools.app/tool/openassistantgpt) | 13,468 | +10.3% | Freemium, Paid, Contact for Pricing | Open-source platform for building no-code RAG AI chatbots | semantic match | [.md](https://openaitools.app/tool/openassistantgpt.md) | | 9 | [Relevance AI](https://openaitools.app/tool/relevance-ai) | 192,083 | -15.5% | Free Trial, Contact for Pricing | No-code AI agents and agent teams for real business workflows | semantic match | [.md](https://openaitools.app/tool/relevance-ai.md) | | 10 | [Agents-Flex](https://openaitools.app/tool/agents-flex) | 5,088 | +202.3% | Free / Open Source | Open-source Java framework for building AI agents and LLM apps | semantic match | [.md](https://openaitools.app/tool/agents-flex.md) | | 11 | [Agentset](https://openaitools.app/tool/agentset) | 6,469 | -29.3% | Freemium, Contact for Pricing | Open-source RAG platform for reliable AI chat and search | semantic match | [.md](https://openaitools.app/tool/agentset.md) | | 12 | [Caveman](https://openaitools.app/tool/caveman) | 171,826 | -15.5% | Freemium, Contact for Pricing | Cut AI agent token costs with recoverable context compression and smart model routing | semantic match | [.md](https://openaitools.app/tool/caveman.md) | | 13 | [ScrapeGraphAI](https://openaitools.app/tool/scrapegraphai) | 91,362 | -25.7% | Freemium, Paid, Contact for Pricing | Turn any website into structured JSON with a prompt instead of selectors | semantic match | [.md](https://openaitools.app/tool/scrapegraphai.md) | | 14 | [LM-Kit.NET](https://openaitools.app/tool/lm-kit-net) | 11,445 | -18% | Freemium, Free Trial, Paid | Embed private generative AI, RAG and agents directly inside your .NET application | semantic match | [.md](https://openaitools.app/tool/lm-kit-net.md) | | 15 | [CleverAI](https://openaitools.app/tool/cleverai) | 5,439 | -2.7% | Project-based (from $15,000); Contact for Pricing | Enterprise AI product studio building agents, RAG and SaaS | semantic match | [.md](https://openaitools.app/tool/cleverai.md) | | 16 | [Epsilla](https://openaitools.app/tool/epsilla) | 6,882 | +17% | Freemium, Paid, Contact for Pricing | Vertical AI agent as a service — build and deploy agents without engineering overhead | semantic match | [.md](https://openaitools.app/tool/epsilla.md) | | 17 | [Polygres](https://openaitools.app/tool/polygres) | 4,018 | -52.3% | Freemium | Graph, vector and text retrieval for AI agents on your Postgres | semantic match | [.md](https://openaitools.app/tool/polygres.md) | | 18 | [Retriever AI](https://openaitools.app/tool/retriever-ai) | 45,292 | +32% | Freemium | Free AI browser agent that works anywhere you're signed in | semantic match | [.md](https://openaitools.app/tool/retriever-ai.md) | | 19 | [Trieve](https://openaitools.app/tool/trieve) | 1,946 | -12.4% | Contact for Pricing | Search, discovery and RAG infrastructure for your product | semantic match | [.md](https://openaitools.app/tool/trieve.md) | | 20 | [Lamini](https://openaitools.app/tool/lamini) | 4,158 | +0.3% | Freemium, Contact for Pricing | Build and control custom LLMs with enterprise-grade accuracy | semantic match | [.md](https://openaitools.app/tool/lamini.md) | | 21 | [Cloudglue](https://openaitools.app/tool/cloudglue) | 2,738 | -55.3% | Freemium, Contact for Pricing | Turn video and audio into structured, LLM-ready context | semantic match | [.md](https://openaitools.app/tool/cloudglue.md) | | 22 | [GRID](https://openaitools.app/tool/grid-2-0) | 29,800 | -5.3% | Free Evaluation License, Contact for Commercial Pricing | The spreadsheet engine built for AI agents | semantic match | [.md](https://openaitools.app/tool/grid-2-0.md) | | 23 | [Remove Background AI](https://openaitools.app/tool/remove-background-ai) | 18,061 | +11.8% | Freemium | Remove image and video backgrounds automatically with AI | semantic match | [.md](https://openaitools.app/tool/remove-background-ai.md) | | 24 | [Faraday](https://openaitools.app/tool/faraday-ai) | 13,719 | -0.2% | Freemium, Free | Customer context platform that feeds predictions and identity data to AI agents | semantic match | [.md](https://openaitools.app/tool/faraday-ai.md) | Page 1 of 4 · [Next page →](https://openaitools.app/index.md?q=RAG+preprocessing&group=coding-development&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=RAG%20preprocessing More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)