AgentIndex icon
AgentIndex
fess logo
fess
★ 1.1k
vs
deep-research logo
deep-research
★ 4.7k

fess vs deep-research

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.; deep-research: Deep Research is an AI-powered tool designed to generate comprehensive research reports rapidly, leveraging advanced AI models and internet connectivity. It prioritizes user privacy by processing and storing all data locally.

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 →
deep-research logo
deep-researchRAG / Knowledge Base · ★ 4.7k

Rapidly generate in-depth research reports for personal and professional use.

Read deep-research full review →
02

Side-by-Side Comparison

Field
fess logofess
deep-research logodeep-research
Category
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 1.1k
★ 4.7k
License
Apache-2.0
MIT
Install Command
unzip fess-*.zip && cd fess-* && ./bin/fess
docker run -d --name deep-research -p 3333:3000 xiangfa/deep-research
Updated
2d ago
4mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Enterprise Search, Full-text Search, Web Crawler
AI Research, LLM, Privacy-focused
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)
deep-research logodeep-research
01Rapidly generates comprehensive research reports in minutes.
02Ensures privacy by processing and storing all data locally in the browser.
03Supports a wide range of mainstream large language models (LLMs).
04Integrates with various web search engines for enhanced information gathering.
05Allows uploading and processing local files to build a knowledge base.
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
deep-research logodeep-research
↳Rapidly generate in-depth research reports for personal and professional use.
↳Serve as a deep research as a service (SaaS) platform via SSE API.
↳Integrate deep research functionality into other AI applications using MCP.
05

Best For

fess logofess
EssentialTrending
deep-research logodeep-research
—
FAQ

FAQ

What is the difference between fess and deep-research?
Both fess and deep-research are in the RAG / Knowledge Base category. fess has 1.1k stars, while deep-research has 4.7k stars.
Which is better, fess or deep-research?
The best choice depends on your use case. Choose fess if Implement an internal enterprise search engine for documents, files, and databases, and deep-research if Rapidly generate in-depth research reports for personal and professional use..
Is fess free or open source?
Yes, fess is open source on GitHub (Apache-2.0).
Is deep-research free or open source?
Yes, deep-research is open source on GitHub (MIT).
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Alternatives to fess →Alternatives to deep-research →fess details →deep-research details →