
SpecialistShare and access study materials worldwide — with AI study tools built in
SpecialistShare and access study materials worldwide — with AI study tools built in
Gizmo records 9,273,984 monthly visits with +18.2% month-over-month growth and Freemium pricing. OpenFlowKit records 1,437 monthly visits with -70.3% growth and Free pricing.

The open-source diagramming studio for builders
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | gizmo.ai | openflowkit.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 9.27M (9,273,984) | 1.44K (1,437) |
| MoM Traffic Delta | +1.42M (+18.2%) | -3.41K (-70.3%) |
| Primary Market & Share | 🇵🇭 Philippines (31.3%) | 🇻🇳 Vietnam (92.4%) |
| Direct Visits / mo | 5.7M | 614 |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
Turn notes, PDFs, PowerPoint slides and YouTube videos into ready-to-quiz flashcards without writing cards by hand.
Automatic scheduling resurfaces cards right before you would forget them, so review time goes where it is needed.
Answer-first quizzing with instant feedback instead of passive re-reading, reinforcing long-term retention.
Streaks, points and social study sessions keep motivation high and make daily review a habit.

The open-source diagramming studio for builders
Paste a public GitHub repository and OpenFlowKit reads its files in the browser to draw modules and connections, with every arrow cited to the source line it came from.
29 diagram tools for Claude Code, Codex, Cursor, VS Code, Windsurf or any MCP client, so an agent can draw on the diagram you have open, one undo away.
Write or paste Mermaid, D2 or Structurizr; the text and the canvas remain the same diagram, so you can round-trip between syntax and visuals.
Move from system context to containers to components in linked views that all stay grounded in a single architecture model.

SpecialistShare and access study materials worldwide — with AI study tools built in
SpecialistShare and access study materials worldwide — with AI study tools built in
Offers robust flashcard creation and practice tests, but with a stronger focus on free study tools.
Offers robust flashcard creation and practice tests, but with a stronger focus on free study tools.

Provides comprehensive AI tutoring and course material conversion, but features a more structured video-explainer interface.
Provides comprehensive AI tutoring and course material conversion, but features a more structured video-explainer interface.

Converts course materials into flashcards and mind maps, though its interface emphasizes visual conceptual learning over gamification.
Converts course materials into flashcards and mind maps, though its interface emphasizes visual conceptual learning over gamification.

SpecialistTurn any material into visual study sets, flashcards and quizzes
SpecialistTurn any material into visual study sets, flashcards and quizzes

Excels at summarizing extensive lecture notes and videos into study guides, though its flashcard gamification is simpler.
Excels at summarizing extensive lecture notes and videos into study guides, though its flashcard gamification is simpler.
AI diagrams and technical design docs built from your code and systems
AI diagrams and technical design docs built from your code and systems
Transforms various notes and videos into structured summaries and quizzes, offering a clean, straightforward study experience.
Transforms various notes and videos into structured summaries and quizzes, offering a clean, straightforward study experience.

AI diagramming, mind mapping and project tools with 50,000+ templates
AI diagramming, mind mapping and project tools with 50,000+ templates
Specializes in converting study files directly into Anki-compatible decks, ideal for dedicated spaced-repetition users.
Specializes in converting study files directly into Anki-compatible decks, ideal for dedicated spaced-repetition users.

Free AI study partner that turns your course material into practice questions, guides and flashcards
Free AI study partner that turns your course material into practice questions, guides and flashcards
Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations
Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations