How do their growth rates compare?

Open WebUI has a month-over-month growth rate of -2.8%; Thinkstack.ai has -47.4%.

How does pricing compare?

Open WebUI: Freemium. The core platform is free and open source, installable via pip or Docker with no account required. An enterprise tier with support, compliance and deployment assistance is quoted on contact. Thinkstack.ai: Freemium. Freemium with a free starting plan and paid tiers for higher usage and features; enterprise pricing is available on request. See the pricing page for current details.

What are alternatives to Open WebUI and Thinkstack.ai?

Other tools in related categories include Ollama, n8n, Hermes-Agent, Clawdbot (OpenClaw), Dify.

Head-to-Head Benchmark

Open WebUI vs Thinkstack.ai

Open WebUI records 804,534 monthly visits with -2.8% month-over-month growth and Freemium pricing. Thinkstack.ai records 917 monthly visits with -47.4% growth and Freemium pricing.

Open WebUIFreemiumTraffic Leader

Self-hosted AI workspace for local and cloud models

Monthly Visits

804.53K

MoM Velocity

-2.8%

Top Market

🇺🇸 United States

View Open WebUI Analysis

openwebui.com

Thinkstack.aiFreemium

Build custom AI chatbots and agents trained on your own data

Monthly Visits

917

MoM Velocity

-47.4%

Top Market

🇺🇸 United States

View Thinkstack.ai Analysis app.thinkstack.ai

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Open WebUI	Thinkstack.ai
Official Domain	openwebui.com	app.thinkstack.ai
Pricing Model	Freemium	Freemium
Monthly Visits	804.53K (804,534)	917 (917)

Primary Market & Share	🇺🇸 United States (24.5%)	🇺🇸 United States (48.2%)

Direct Visits / mo	299.84K	367

User Rating	4.4	4.1

Supported Platforms	Website	Website

Open WebUI

Self-hosted AI workspace for local and cloud models

Any Model, Any Endpoint

Connect local runtimes like Ollama alongside OpenAI-compatible and Anthropic APIs, and switch between them inside one interface.

Retrieval and Search Built In

RAG over your own documents, web search and citation-aware answers come standard, so responses are grounded in real sources.

Python Tools, Functions and Pipelines

Extend the platform with Python code to add custom tooling, preprocessing, and multi-step pipelines, then share them with others.

Enterprise Controls

SSO, RBAC, audit logs, data residency, and on-premises, hybrid or air-gapped deployment for organisations with strict requirements.

Strengths & Pros

+Free and open source with no account needed to install
+Works with local and cloud models through a single interface
+Strong privacy posture: your data and models stay on your infrastructure
+Extensive enterprise features including SSO, RBAC and audit logs
+Large, active community hub of shared prompts, tools and models

Frequently Asked Questions: Open WebUI vs Thinkstack.ai

Open WebUI has 804,534 monthly visits, while Thinkstack.ai has 917. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

Ollama vs Open WebUI

10.23M visits/mo

Ollama vs Thinkstack.ai

Hermes-Agent vs Open WebUI

4.44M visits/mo

Hermes-Agent vs Thinkstack.ai

3.64M visits/mo

Best Alternatives to Open WebUI & Thinkstack.ai (12)

Limitations

–Self-hosting requires you to handle servers, updates and backups
–Some enterprise capabilities and support sit behind a paid, quote-based tier
–Feature depth means a learning curve for non-technical administrators
–Local model performance depends heavily on your own hardware

Thinkstack.ai

Build custom AI chatbots and agents trained on your own data

No-code chatbot builder

Create fully functional AI agents in seconds from a visual, no-code interface without engineering help.

Knowledge-source training

Connect multiple data sources so the bot answers from your own documents, help content, and websites.

Actions and agentic workflows

Automate customer actions and build autonomous systems that require minimal human oversight.

Human handoff and conversational forms

Move complex chats to live agents and collect structured data through chat-based forms.

Strengths & Pros

+No-code setup is fast enough to launch a bot in minutes
+Supports both simple Q&A bots and agentic, action-taking agents
+Deploys across website, WhatsApp, Instagram, and Messenger
+White-label and enterprise options for agencies and large teams

Limitations

–

Answer quality depends heavily on how good your training content is

–Advanced automation and higher usage require paid plans

–Very complex custom logic may still need developer support

01

Ollama

9.4M/mo

Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.

Large Language Models (LLMs)Free, Freemium, Paid+4.3%

Ollama command line running a local open-weight language model

#1

02

n8n AI workflow automation platform homepage with visual workflow builder

n8n

4.5M/mo

SpecialistOpen-source workflow automation built for AI agents and technical teams

AI WorkflowFreemium35% direct

#2

03

Hermes-Agent

3.6M/mo

SpecialistA free, open-source personal AI agent that learns your projects and works across every messaging app.

AI AgentFreemium29% direct

Hermes-Agent desktop app showing a conversation with scheduled automations and memory

#3

04

OpenClaw open-source personal AI assistant homepage

Clawdbot (OpenClaw)

1.9M/mo

SpecialistOpen-source personal AI assistant that runs on your own machine and works from chat apps

AI AssistantPaid, Free31% direct

OpenClaw assistant operating inside a chat app conversation

05

Dify

819.7K/mo

SpecialistSpecializes in visual workflow building and RAG pipelines rather than serving purely as a chat interface.

AI App BuilderFreemium57% direct

Dify Workflow Studio canvas with retrieval, branching, and model nodes connected in a flow

06

LobeHub

654.5K/mo

Free / Open-sourceFocuses on collaborative team AI workspaces and plugins, but shares similar open-source architectural goals.

AI AgentFreemium30% direct

07

Tidio

527.3K/mo

AI customer service that answers instantly and turns chats into revenue

AI Customer ServiceFreemium73% direct

Tidio help desk inbox showing AI-resolved conversations alongside human agent replies

08

AnythingLLM

512.3K/mo

SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.

Large Language Models (LLMs)Freemium+12.9%

Screenshot of AnythingLLM's Meeting Assistant showing a local transcript with generated summaries and action items

09

DocsBot AI

495.3K/mo

Custom AI agents trained on your documentation and knowledge base

AI ChatbotFreemium18% direct

DocsBot AI website showing the custom AI agent builder and knowledge source options

10

LibreChat

346.9K/mo

Free / Open-sourceOffers robust multi-provider support and advanced user permission management, but has a slightly different configuration setup.

AI ChatbotFree37% direct

LibreChat chat workspace with model selector, agents sidebar and artifact panel

11

Jan

291.9K/mo

Free / Open-sourceDelivers a desktop-native application for running local models offline easily, but lacks Open WebUI's server-centric multi-user features.

AI ChatbotFree36% direct

Jan desktop chat interface showing a local model conversation

12

Activepieces

258.6K/mo

SpecialistOpen-source AI automation that unifies agents, flows and 770+ app integrations

AI WorkflowFreemium+1.5%

Activepieces flow builder canvas with an AI agent connecting app steps and inline TypeScript

Visit

Ollama

9.4M/mo+4.3%

Open Source

Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.

Large Language Models (LLMs)43% direct

Free, Freemium, Paid

Visit

n8n

4.5M/mo

Open Source

SpecialistOpen-source workflow automation built for AI agents and technical teams

AI Workflow35% direct

Freemium

Visit

Hermes-Agent

3.6M/mo

Open Source

SpecialistA free, open-source personal AI agent that learns your projects and works across every messaging app.

AI Agent29% direct

Freemium

Visit

Clawdbot (OpenClaw)

1.9M/mo

Open Source

SpecialistOpen-source personal AI assistant that runs on your own machine and works from chat apps

AI Assistant31% direct

Paid, Free

Visit

Dify

819.7K/mo

Open Source

SpecialistSpecializes in visual workflow building and RAG pipelines rather than serving purely as a chat interface.

AI App Builder57% direct

Freemium

Visit

LobeHub

654.5K/mo

Open Source

Free / Open-sourceFocuses on collaborative team AI workspaces and plugins, but shares similar open-source architectural goals.

AI Agent30% direct

Freemium

Visit

Tidio

527.3K/mo

AI customer service that answers instantly and turns chats into revenue

AI Customer Service73% direct

Freemium

Visit

AnythingLLM

512.3K/mo+12.9%

Open Source

SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.

Large Language Models (LLMs)39% direct

Freemium

Visit

DocsBot AI

495.3K/mo

Custom AI agents trained on your documentation and knowledge base

AI Chatbot18% direct

Freemium

Visit

LibreChat

346.9K/mo

Open Source

Free / Open-sourceOffers robust multi-provider support and advanced user permission management, but has a slightly different configuration setup.

AI Chatbot37% direct

Free

Visit

Jan

291.9K/mo

Open Source

Free / Open-sourceDelivers a desktop-native application for running local models offline easily, but lacks Open WebUI's server-centric multi-user features.

AI Chatbot36% direct

Free

Visit

Activepieces

258.6K/mo+1.5%

Open Source

SpecialistOpen-source AI automation that unifies agents, flows and 770+ app integrations

AI Workflow43% direct

Freemium

Open WebUI vs Thinkstack.ai

Side-by-Side Traffic & Specification Matrix

Open WebUI

Strengths & Pros

Frequently Asked Questions: Open WebUI vs Thinkstack.ai

How do Open WebUI and Thinkstack.ai compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to Open WebUI and Thinkstack.ai?

More Head-to-Head Matchups

Best Alternatives to Open WebUI & Thinkstack.ai (12)

Limitations

Thinkstack.ai

Strengths & Pros

Limitations