AgentIndex icon
AgentIndex
fess logo
fess
★ 1.1k
vs
MaxKB logo
MaxKB
★ 23.0k

fess vs MaxKB

fess: Fess is an enterprise search server built on OpenSearch, designed for easy installation and management via a browser-based UI. It features robust crawlers for various data sources, full-text search capabilities, and supports numerous document formats and multilingual interfaces.; MaxKB: MaxKB is an open-source platform for building enterprise-grade AI agents with integrated RAG pipelines, workflow orchestration, and MCP tool-use capabilities. It supports direct document upload, automatic web crawling, and multiple embedding models for knowledge base construction. Widely used for intelligent customer service, internal knowledge bases, and academic research applications.

01

TL;DR

fess logo
fessRAG / Knowledge Base · ★ 1.1k

Implement an internal enterprise search engine for documents, files, and databases

Read fess full review →
MaxKB logo
MaxKBRAG / Knowledge Base · ★ 23.0k
When to choose:
  • You want an all-in-one knowledge-base and workflow agent platform that starts with a single Docker command and embeds easily into websites.
  • You need broad support for domestic Chinese LLM providers alongside global models for internal enterprise Q&A.
When to skip:
  • You cannot use GPL-3.0 licensed software in your commercial distribution; RAGFlow is Apache-2.0.
  • Your primary bottleneck is extracting complex tables and layouts from messy scanned PDFs; RAGFlow's deep document parser goes further.
Read MaxKB full review →
02

Side-by-Side Comparison

Field
fess logofess
MaxKB logoMaxKB
Category
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 1.1k
★ 23.0k
License
Apache-2.0
GPL-3.0
Install Command
unzip fess-*.zip && cd fess-* && ./bin/fess
docker run -d --name=maxkb --restart=always -p 8080:8080 -v ~/.maxkb:/opt/maxkb 1panel/maxkb
Updated
2d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Enterprise Search, Full-text Search, Web Crawler
RAG, Agent, LLM
03

Features

fess logofess
01Full-text search with faceting, sorting, and search suggestions
02Crawlers for web sites, file systems, and data stores (databases, cloud storage, and SaaS)
03Browser-based administration UI and a REST API
04Role- and permission-based filtering of search results
05Multilingual user interface and text analysis (20+ languages)
MaxKB logoMaxKB
01RAG pipeline with document upload, web crawling, and automatic chunking
02Visual workflow builder for multi-step agent logic
03MCP tool-use capabilities for connecting to external services
04Supports multiple LLMs and embedding models
05Docker deployment with 1Panel integration for easy self-hosting
04

Use Cases

fess logofess
↳Implement an internal enterprise search engine for documents, files, and databases
↳Provide a free alternative to Google Site Search for embedding on websites
↳Index and search content from various data stores like Confluence, Jira, S3, and Salesforce
↳Deliver secure search with role- and permission-based access control
MaxKB logoMaxKB
↳Building intelligent customer service bots with enterprise knowledge bases
↳Creating internal Q&A systems over company documents and wikis
↳Deploying research assistants with RAG over academic or technical document collections
05

Best For

fess logofess
EssentialTrending
MaxKB logoMaxKB
Most PopularEssentialTrending
FAQ

FAQ

What is the difference between fess and MaxKB?
Both fess and MaxKB are in the RAG / Knowledge Base category. fess has 1.1k stars, while MaxKB has 23.0k stars.
Which is better, fess or MaxKB?
The best choice depends on your use case. Choose fess if Implement an internal enterprise search engine for documents, files, and databases, and MaxKB if Building intelligent customer service bots with enterprise knowledge bases.
Is fess free or open source?
Yes, fess is open source on GitHub (Apache-2.0).
Is MaxKB free or open source?
Yes, MaxKB is open source on GitHub (GPL-3.0).
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