OpenCharts

OpenCharts is ranked #3 of 109 in AI presentation makers on The Geeks Club. It runs on API, macOS, Web, Windows. There is a free plan. Paid plans start at $9.99/mo.

OpenCharts plans and pricing

All plans

Free Forever Free 500K AI credits · 1 of each project type · 1 Code Canvas project · 10 GB Drive storage · all export formats opencharts.com · 30 Sept 2026

Starter $9.99/mo Billed monthly 1M AI credits · 10 flowcharts · 3–5 of each other surface · 25 GB Drive storage · 5 Theo Agents + Theo Claw workers · custom domain publishing · PNG + JSON export opencharts.com · 30 Sept 2026

Pro $24.99/mo Billed monthly 5M AI credits · unlimited projects · 100 GB Drive storage · Theo Personas + Director Mode · custom domains · zero branding · every export format · API access opencharts.com · 30 Sept 2026

Teams $14.99/mo Minimum 3 users, billed monthly 2M AI credits/user · unlimited projects · 100 GB shared Drive storage · real-time collaboration · team chat · organization workspace · admin dashboard · Theo Personas + Director Mode opencharts.com · 30 Sept 2026

Compared on AI presentation makers

Free plan: Yes

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OpenCharts

AI assistance: Yes
Real-time collaboration: Yes
PowerPoint export: Yes
Presenter mode: Yes
Supported platforms: Web, Windows, macOS, chrome_extension
Product scope: OpenCharts is an AI workspace for flowcharts, decks, notes, code, video, and agents.
Theo AI: Theo creates flowcharts, whiteboards, notes, presentations, podcasts, videos, code, and images from plain-language descriptions.
Flowcharts: Flowcharts use terminal, process, decision, and data nodes on an infinite canvas with auto layout and export tools.
Presentations: The presentation editor supports editable slides, speaker notes, transitions, AI generation, rehearsal coaching, web publishing, and PPTX export.
Agents: Theo Agents support schedules, webhooks, monitor triggers, manual starts, external connectors, human approval gates, and generated deliverables.
Integrations: Listed connectors include Stripe, HubSpot, Slack, Google Sheets, Discord, Airtable, Calendly, Apollo, Typeform, Monday, Gmail, Notion, GitHub, Linear, and others.
MCP server: Theo MCP provides 113 tools, five readable resources, a hosted Streamable HTTP endpoint, and 120 requests per minute per key.
REST API: The OpenCharts REST API can create and manage flowcharts, whiteboards, notes, presentations, sheets, boards, personas, and agents.
Desktop app: OpenCharts Desktop provides two-way Drive sync on macOS 13 or later and Windows 10 or later.
Price from: $9.99/mo

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Where it ranks on The Geeks Club

Best AI Presentation Makers in 2026#3 of 109
Best Presentation Software in 2026#10 of 93
Best AI Presentation Software in 2026#13 of 85
Best AI Diagram Generators in 2026#3 of 32

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Sources

opencharts.com/;· checked 20 Sept 2026
opencharts.com· checked 30 Sept 2026
opencharts.com/features/theo· checked 30 Sept 2026
opencharts.com/help/creating-flowcharts· checked 30 Sept 2026
opencharts.com/help/presentations-overview· checked 30 Sept 2026
opencharts.com/features/agents· checked 30 Sept 2026
opencharts.com/features/mcp· checked 30 Sept 2026
opencharts.com/developers/docs· checked 30 Sept 2026
opencharts.com/desktop· checked 30 Sept 2026
opencharts.com/security· checked 30 Sept 2026
opencharts.com/about· checked 30 Sept 2026