opencharts

The first AI-native workspace

Flow it. Board it. Note it. Present it. Collaborate in real time.

Describe what you need. Watch AI build it. Drag, refine, and share with your team — no design skills required.

Free forever — no credit card required
opencharts.com
Create a user onboarding flow
✓ CreatedFlowchart
0+
Diagrams created
0+
Users collaborating
0+
Templates available
0%
Uptime
Powered by Theo

Every tool your team needs, in one place

Flowcharts, whiteboards, notes, presentations, podcasts, file storage, real-time collaboration, and team workspaces — all powered by Theo.

Loading…
Try dragging the nodes

Professional diagrams, drag and drop

20+ node types from process flows to SWOT grids. AI generates the whole thing from a prompt, or build manually with rich-text nodes and auto-layout.

20+ node types including swimlanes and groups
Decision branches with custom paths
AI builds diagrams from a text description
Meet Theo

TheoOne AI. Every tool. Zero switching.

The most powerful AI orchestrator on the market. Multi-layer processing that routes every task to the best engine automatically. 11 specialized modes, 20+ tools, and autonomous workflows. Not just a chatbot. An agent.

Theo
Creates real projects in your workspace
11 specialized modes (not one-size-fits-all)
Intelligent routing to the best engine per task
Manages folders, teams, and sharing
Autonomous workflows & scheduled actions
Included in your plan — no extra cost
Other AI chatbots
Generates text — you copy-paste elsewhere
Single engine, single mode
No project management
No team workspace integration
No autonomous background actions
Separate $20/mo subscription
Theo

8 modes, one interface

Theo's superpowers

Voice mode

Talk to Theo in real-time. Create projects, brainstorm, and research — hands-free.

Deep research

Multi-step web research that reads sources and compiles findings into polished documents.

Code generation

Build full apps with live preview. Landing pages, dashboards, games — iterate visually.

Autonomous workflows

Install skills, set up hooks, and build multi-step automations. Theo works while you sleep.

Flashcards & podcasts

Turn any note into AI flashcards with quizzes, or a two-host podcast episode.

Diagram → AI prompt

Export any flowchart as a structured prompt for Cursor, Claude, Warp, or Codex.

All included in your free account. No separate AI subscription.

Try Theo Free

No credit card required

11 Modes

Theo has modes for everything

Every mode is purpose-built for a different kind of work. Theo Fast for quick answers, Theo Think for deep reasoning, Theo Consensus for cross-validated truth. Every mode included free.

Fast

Theo Fast

Instant answers and quick project creation. Ask a question or say "make me a flowchart" — done in seconds.

Create a flowchart for user onboarding
Summarize this PDF into bullet points

Think

Theo Think

Extended reasoning for complex tasks. Multi-step analysis, detailed comparisons, and strategic planning.

Design a system architecture diagram
Write a comprehensive project proposal

Image

Theo Image

Multi-engine image generation. Theo picks the best engine for each request — logos, illustrations, banners, mockups, and more.

Design a logo for my coffee startup
Generate a hero banner for a SaaS landing page

Video

Theo Video

AI video generation. Describe a scene and Theo creates video clips with motion, transitions, and effects.

Create a product demo animation
Generate a 5-second intro for my YouTube channel

Deep Research

Theo Deep Research

Multi-step web research and synthesis. Theo searches, reads sources, and compiles findings into a polished document with charts and citations.

Research the latest AI trends and write a report
Compare React vs. Vue for our next project

Voice

Theo Voice

Real-time voice conversations. Talk naturally, get spoken answers, and create projects hands-free.

"Create a presentation about Q1 results"
"Walk me through this flowchart"

Code

Theo Code

Generate full applications with live preview. Landing pages, dashboards, games, utilities — build and iterate visually.

Build a landing page for a fitness app
Create a kanban board in React

Learn

Theo Learn

Socratic learning mode. Guided explanations, flashcard generation, quizzes (multiple-choice, true/false, fill-in), and study materials.

Teach me about machine learning fundamentals
Create flashcards from my biology notes

Explore

Theo Explore

Broad exploration with web search, deep reasoning, and tool use. Best for open-ended discovery and creative brainstorming.

Explore sustainable packaging trends for 2026
What are the most innovative startups in health tech?

Consensus

Theo Consensus

Cross-validated answers. Theo runs your question through multiple reasoning paths and synthesizes the best answer with a confidence breakdown.

What's the best database for a real-time app?
Should we use microservices or a monolith?

Social Media

Theo Social Media

Content calendars, posting schedules, and social media planning. Builds interactive calendars, Gantt timelines, and content briefs.

Build a 30-day social media calendar for my brand
Create a content strategy for Instagram and TikTok
Collaboration

Collaborate like you're in the same room

Collaborate across flowcharts, whiteboards, notes, and presentations — all in real time. Share a link, see live cursors, leave comments, and build together.

opencharts.com/editor/project-123
A
B
C
Start
Process Data
Valid?
Alice
Bob
C
Carol

Should we add retry logic here?

Share link copied!

Live cursors & presence

See who's editing in real time. Cursors, selections, and node locking — changes sync in milliseconds.

Threaded comments

Leave comments on any node. Resolve, reply, and tag teammates — all without leaving the canvas.

Share without signup

Generate a link. Anyone can view or comment instantly — no account required. Set viewer, commenter, or editor permissions.

Team workspaces

Create organizations with roles, shared project libraries, built-in team chat, and activity feeds.

Version history & restore
2FA, encryption, row-level permissions
Templates

Don't start from scratch

120+ professionally designed templates across flowcharts, whiteboards, notes, and presentations. Pick one, make it yours, and let Theo handle the rest.

Start in seconds, not hours

Skip the blank canvas. Pick a template, customize it, and ship. Every template is pre-structured with best-practice layouts so you focus on content, not formatting.

AI-enhanced, not static

Templates aren't just starting points — Theo can regenerate, extend, and adapt any template to your specific needs. Describe what's different and Theo rebuilds it.

Community-powered

Browse templates created by the community, fork and remix them, or publish your own. The best templates surface through upvotes and usage.

Templates for every use case

Flowcharts30+

User onboarding

CI/CD pipeline

Bug triage

Whiteboards20+

Brainstorm session

User journey map

Sprint retro

Notes25+

Meeting notes

Research paper

Project brief

Presentations20+

Pitch deck

Quarterly review

Product launch

Diagrams10+

Mind map

Org chart

SWOT analysis

Business15+

Business model canvas

Hiring process

Content approval

Engineering15+

System architecture

API design

Incident response

Education10+

Lesson plan

Study guide

Research outline

How templates work

1

Browse or search the template gallery

2

Click to preview, then "Use Template" to create a copy

3

Customize with the editor or ask Theo to adapt it for you

Browse Templates

Free account includes full template access

Why teams switch

One workspace instead of three subscriptions

Everything your team needs, bundled and priced fairly.

All-in-one

Flowcharts, whiteboards, notes, presentations, file storage, team chat, and a community forum — one workspace, one login.

AI-native

AI generation is built into every canvas from day one — included on every plan, even Free. No bolt-on add-ons or separate subscriptions.

3–5× cheaper

Miro + Notion + Google Slides costs $25+/user/mo across three subscriptions. OpenCharts Unlimited gives you everything for $24.99/mo total.

Feature
OpenCharts
Miro
Lucidchart
Notion
AI diagram + doc generation
Real-time collaboration
Presentation builder
← Scroll to compare →
Included
Limited
Not available
Chrome Extension

Take OpenCharts everywhere you browse

Clip web content, screenshots, and images directly into your notes — with AI smarts built in.

Full Page Clip

Extract entire articles as clean Markdown with auto-detected metadata.

Selection Clip

Highlight text on any page and clip just that portion.

Multi-Passage Highlights

Annotate with 5 colors. Highlights persist across page revisits.

Screenshot Capture

Capture the viewport or drag-select a custom region.

Image Grab

Right-click any image to save it directly into your notes.

AI Actions

Summarize, extract takeaways, pull action items, or run custom prompts.

Offline Support

Clips queue automatically when offline and sync when you're back.

Keyboard Shortcuts

Ctrl+Shift+O to open, Ctrl+Shift+H for highlights, and more.

OpenCharts Web Clipper

5 clip modes, AI-powered tagging, templates, batch clipping, and offline support — all free.

Add to Chrome — It's Free

Works with Chrome, Edge, Brave, and other Chromium browsers

Quick shortcuts

Ctrl+Shift+OOpen clipper
Ctrl+Shift+HToggle highlights
Ctrl+Shift+SScreenshot
Simple, transparent pricing

Pick your plan, start building

Every plan includes the full editor. Upgrade when you need more room, more AI, or your whole team.

MonthlyAnnual

Free Forever

Explore at your own pace

Free

No credit card required

Get Started
  • Up to 2 flowcharts
  • 1 note
  • 1 whiteboard
  • 1 presentation
  • 100,000 AI credits / month
  • Basic export (PNG, JSON)
  • Community templates
  • 1 user
  • Priority AI models
  • Version history

Starter

For side projects & solo makers

$9.99/mo
Get Starter
  • Up to 10 flowcharts
  • Up to 5 active notes
  • Up to 3 whiteboards
  • Up to 3 presentations
  • 500,000 AI credits / month
  • Basic export (PNG, JSON)
  • Community templates
  • 1 user
  • Priority AI models
  • Version history
Most Popular

Unlimited

For power users who build non-stop

$24.99/mo
Go Unlimited
  • Unlimited flowcharts
  • Unlimited notes
  • Unlimited whiteboards
  • Unlimited presentations
  • 2,500,000 AI credits / month
  • All export formats
  • Custom templates
  • 1 user
  • Priority AI models
  • Version history

Teams

For squads that think together

$14.99/user/mo

per user, billed monthly

min. 3 users, $44.97/mo

Get Teams
  • Everything in Unlimited
  • Min. 3 users
  • 1,250,000 AI credits / user / mo
  • Real-time collaboration
  • Team chat
  • Organization workspaces
  • Shared project libraries
  • Admin dashboard
  • Activity feeds

Enterprise

For orgs that need it all

Let's talk

Custom pricing for your org

  • Everything in Teams
  • Unlimited users
  • Unlimited AI credits
  • SSO / SAML integration
  • Dedicated support & SLA
  • Custom integrations
  • Data residency options
  • Priority onboarding
  • 99.99% uptime SLA
Free plan, no credit card
Charts & notes don't reset
AI credits reset monthly
Full editor on every plan

Your next marketing plan is 30 seconds away

Describe it, AI builds it, you refine it. Free to start, no credit card needed, and your whole team can join.