Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.
#1GanttPilot records 1,089 monthly visits with +712.7% month-over-month growth and Free Trial, Paid pricing. Open WebUI records 804,534 monthly visits with -2.8% growth and Freemium pricing.

Import, review, and deliver AI-revised project schedules
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | ganttpilot.com | openwebui.com |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 1.09K (1,089) | 804.53K (804,534) |
| MoM Traffic Delta |
| +955 (+712.7%) |
| -23.01K (-2.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (24.5%) |
|---|
| Direct Visits / mo | 317 | 299.84K |
|---|
| User Rating | 4.1 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|

Import, review, and deliver AI-revised project schedules
Bring in Excel, CSV, XLSX, Microsoft Project XML, or MPP files so you review and revise the schedule your team already uses instead of rebuilding it.
Describe a delayed delivery, new task, or shifted deadline and see which downstream tasks move and by how many days before applying the change.
Surface missing dependencies, deadline risk, resource pressure, and tasks likely to drive the final milestone or critical path.
Inspect and edit task dates, dependencies, milestones, and resources in a lightweight online Gantt editor.

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.
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.

AI calendar that defends your focus time and schedules work automatically

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.

SpecialistThe AI super app for work — tasks, projects, calendar and meetings in one place
SpecialistA visual AI planner built for every neurotype

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.
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.
AI calendar that defends your focus time and schedules work automatically
SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.

SpecialistThe AI super app for work — tasks, projects, calendar and meetings in one place
SpecialistA visual AI planner built for every neurotype
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.