Inbox Zero records 89,348 monthly visits with +6.8% month-over-month growth and Freemium, Free Trial pricing. Open WebUI records 804,534 monthly visits with -2.8% growth and Freemium pricing.
The AI email assistant that sorts your inbox and drafts replies in your voice
Self-hosted AI workspace for local and cloud models
| Dimension / Metric | | |
|---|---|---|
| Official Domain | getinboxzero.com | openwebui.com |
| Pricing Model | Freemium, Free Trial | Freemium |
| Monthly Visits | 89.35K (89,348) | 804.53K (804,534) |
| MoM Traffic Delta | +5.68K (+6.8%) | -23.01K (-2.8%) |
| Primary Market & Share | 🇺🇸 United States (43.3%) | 🇺🇸 United States (24.5%) |
| Direct Visits / mo | 26.08K | 299.84K |
| User Rating | 4.4 | 4.4 |
| Supported Platforms | Website | Website |
The AI email assistant that sorts your inbox and drafts replies in your voice
Incoming mail is sorted into categories like To Reply, Newsletter, Cold Email, Calendar and Notification as it arrives, using default rules or categories you define yourself.
Emails that need a response get a draft written in your tone and referencing your real calendar availability and CRM context, ready to review and send.
Stop cold outreach from ever reaching the inbox, see which newsletters you never read, then unsubscribe and archive them in bulk.
Dashboards reveal who emails you most, which senders dominate your inbox and how your habits change over time so you can act on it.
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.
Free / Open-sourceFunctions primarily as a lightweight CLI runtime for local models rather than a full-featured chat interface.
The AI productivity suite with agents, email, and docs that work wherever you do
The AI productivity suite with agents, email, and docs that work wherever you do
SpecialistOpen-source workflow automation built for AI agents and technical teams
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.
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
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.
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.
SpecialistCollaborative inbox and email management for teams
SpecialistCollaborative inbox and email management for teams
SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.
SpecialistFocuses heavily on privacy-first document chat and local RAG pipelines, but offers fewer general-purpose chat UI features.
Smart, focused email with AI help — for individuals and teams
Free / Open-sourceOffers robust multi-provider support and advanced user permission management, but has a slightly different configuration setup.
Free / Open-sourceOffers robust multi-provider support and advanced user permission management, but has a slightly different configuration setup.
SpecialistA privacy-first email client with built-in AI writing help
