Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.
#1Open WebUI records 804,534 monthly visits with -2.8% month-over-month growth and Freemium pricing. Powabase records 0 monthly visits with -100% growth and Freemium pricing.
The AI-native Postgres backend with RAG and agents built in
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | openwebui.com | powabase.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 804.53K (804,534) | 0 (0) |
| MoM Traffic Delta | -23.01K (-2.8%) |
| -1.65K (-100%) |
| Primary Market & Share | 🇺🇸 United States (24.5%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 299.84K | 0 |
|---|
| User Rating | 4.4 | 4.6 |
|---|
| Supported Platforms | Website | Website |
|---|

Self-hosted AI workspace for local and cloud models
Connect local runtimes like Ollama alongside OpenAI-compatible and Anthropic APIs, and switch between them inside one interface.
RAG over your own documents, web search and citation-aware answers come standard, so responses are grounded in real sources.
Extend the platform with Python code to add custom tooling, preprocessing, and multi-step pipelines, then share them with others.
SSO, RBAC, audit logs, data residency, and on-premises, hybrid or air-gapped deployment for organisations with strict requirements.
The AI-native Postgres backend with RAG and agents built in
Every project runs its own isolated PostgreSQL instance with row-level security, plus managed auth, object storage, and realtime subscriptions — no shared logical databases and no noisy-neighbor risk.
Upload PDFs, images, office files, or URLs and Powabase extracts, chunks, embeds, and indexes them automatically. It supports BM25, pgvector, hybrid search, multimodal indexing, and rerankers.
Define ReAct-style agents with multiple LLMs, knowledge bases, and tools. Runs stream over SSE and sessions persist in your project's Postgres, with human approval gates for sensitive tool calls.
Drag and connect blocks — triggers, conditions, agents, HTTP calls, code — to assemble multi-step workflows, or ask a natural-language copilot to draft the flow. Deploy a workflow as an HTTP endpoint.
Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.
#1SpecialistOpen-source workflow automation built for AI agents and technical teams
SpecialistA free, open-source personal AI agent that learns your projects and works across every messaging app.
#3
SpecialistOpen-source personal AI assistant that runs on your own machine and works from chat apps

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

Free / Open-sourceFocuses on collaborative team AI workspaces and plugins, but shares similar open-source architectural goals.
SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.

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

Free / Open-sourceThe TypeScript framework for building, deploying, and observing AI agents
Free / Open-sourceDelivers a desktop-native application for running local models offline easily, but lacks Open WebUI's server-centric multi-user features.

Cloud browsers and web APIs for AI agents
SpecialistOpen-source AI automation that unifies agents, flows and 770+ app integrations
Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.
SpecialistOpen-source workflow automation built for AI agents and technical teams
SpecialistA free, open-source personal AI agent that learns your projects and works across every messaging app.
SpecialistOpen-source personal AI assistant that runs on your own machine and works from chat apps
SpecialistSpecializes in visual workflow building and RAG pipelines rather than serving purely as a chat interface.
SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.
Free / Open-sourceOffers robust multi-provider support and advanced user permission management, but has a slightly different configuration setup.
Free / Open-sourceDelivers a desktop-native application for running local models offline easily, but lacks Open WebUI's server-centric multi-user features.
Cloud browsers and web APIs for AI agents
SpecialistOpen-source AI automation that unifies agents, flows and 770+ app integrations