# Claude & Codex Plugins vs Knowt

Claude & Codex Plugins records 0 monthly visits with 0% month-over-month growth and Free pricing. Knowt records 4,183,953 monthly visits with +5.4% growth and Free pricing.

| Metric | [Claude & Codex Plugins](https://openaitools.app/tool/claude-codex-plugins) | [Knowt](https://openaitools.app/tool/knowt-com) |
| :--- | :--- | :--- |
| Website URL | https://claudecodexplugins.com | https://knowt.com/ |
| Categories | AI Agent, AI Code Assistant, AI Code Generator, AI Developer Tools | AI Flashcard Maker, AI Notes Generator, AI Summarizer, AI Note Taker |
| Pricing Model | Free | Free |
| Monthly Visits | 0 | 4,183,953 |
| MoM Growth Rate | 0% | +5.4% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 2,741,505 |
| Review Score | 4.4 | 4.3 |
| Saved Count | 0 | 14 |
| Supported Platforms | Website | Website |

## Claude & Codex Plugins

Claude & Codex Plugins solves a very practical problem for people who live inside agentic coding CLIs: discovering what is actually installable. Rather than a hand-curated editorial list that goes stale, the site sweeps GitHub every day looking for repositories that expose a `.claude-plugin/marketplace.json`, `.claude-plugin/plugin.json`, `.codex-plugin/plugin.json` or `.agents/plugins/marketplace.json` manifest, then reads those manifests exactly the way Claude Code and Codex read them. The result is a large, machine-verified catalog — currently hundreds of thousands of plugins drawn from tens of thousands of marketplaces — sorted by stars, trend and category.

Each plugin page focuses on the two things developers actually need before typing a command: the precise install lines for both Claude Code and Codex, and an honest inventory of what gets added to the agent. That inventory breaks down into skills, slash commands, subagents, hooks and MCP servers, so you can see at a glance whether a plugin is a lightweight prompt pack or something that starts local processes and fires event hooks. Because plugins can execute code, that transparency matters.

The site is built by the team behind AI Architectures and is explicitly unaffiliated with Anthropic and OpenAI. It is free to browse and free to submit a repo — pasting a GitHub URL triggers an instant manifest check that reports anything that would break an install, making it useful for plugin authors as well as consumers.

**Pricing & Plans:** Free to browse, search and use. Submitting or checking a plugin repository is also free. The site is operated commercially through an optional featured/paid listing program and a related cloud desktop product, but no fee is required to view the catalog or list a plugin.

- **Daily GitHub manifest sweep:** The index is rebuilt every day by scanning public repositories for Claude Code and Codex plugin manifests, so new releases appear without anyone hand-editing a list.
- **Copy-ready install commands:** Every plugin page shows the exact two-line install sequence for both `claude plugin` and `codex plugin`, including the marketplace add step.
- **Full contents disclosure:** Each listing enumerates the skills, slash commands, subagents, hooks and MCP servers it installs, so you know what will run inside your agent before you commit.
- **Instant manifest checker:** Paste a public GitHub repo and the site validates its manifest the way the CLIs do, flagging problems that would break installation.
- **Sorting by stars, trend and category:** Browse by popularity, weekly trending or categories like productivity, development, security, design and research to find relevant plugins quickly.

**Strengths:** Catalog is generated from real GitHub manifests rather than editorial picks, so it stays current and verifiable; Shows install commands for both Claude Code and Codex side by side; Discloses hooks and MCP servers, which is the information that matters for safety; Free to browse and free to submit, with an immediate manifest validation on submit

**Limitations:** Coverage depends entirely on repos being public and correctly structured, so private or malformed plugins never appear; The sheer volume of listed plugins can be overwhelming without narrowing by category or star count; Star counts dominate the default rankings, which can bury useful but niche plugins

[Profile (Markdown)](https://openaitools.app/tool/claude-codex-plugins.md)

## Knowt

Knowt is a study platform built around flashcards and AI study tools, and it markets itself as the leading free Quizlet alternative. Its pitch is consolidation: rather than juggling several apps, students upload their class materials once and get flashcards, notes, summaries, and practice tests generated in one place. Importing existing Quizlet sets takes a couple of clicks, including images and formatting.

The AI layer is powered by Kai, an assistant that works across PDFs, slides, images, videos, and live lecture recordings. Uploading files produces notes, flashcards, and quizzes automatically, and Kai can also answer questions about your materials and explain why a practice answer was wrong. An Exam Predictor and Planner builds a study schedule from uploaded course files, while Voice Tutoring & Podcasts let students be quizzed aloud or turn notes into audio for studying on the go.

Knowt is free to use for core studying, with unlimited learn mode and free practice tests. It is widely adopted in education, with millions of students and teachers using it and a strong presence in AP exam preparation, alongside SAT and ACT resources and a Chrome extension for on-screen study.

**Pricing & Plans:** Knowt's core features are free: unlimited learn mode, free practice tests, flashcard creation, imports, and AI study tools with reasonable usage limits. Optional paid upgrades (Plus/Unlimited-style tiers) unlock higher AI generation limits and premium features. No credit card is required to start studying.

- **AI PDF Summarizer and Flashcards:** Upload up to 30 files and Kai instantly produces notes, flashcards, summaries, and practice resources from them.
- **Import and Lecture Recording:** Convert Quizlet, Kahoot, Wayground, and YouTube content, or record live lectures to generate notes and study sets.
- **Exam Predictor and Planner:** Upload class files to get a study plan and exam prediction that highlights what your professor emphasizes most.
- **Voice Tutoring and Podcasts:** Kai quizzes you by voice and can turn any note or flashcard into a podcast for study on the go.
- **Study Modes and Exam Prep:** Free learn mode, matching games, spaced repetition, and practice test rooms cover AP, ACT, and SAT prep.

**Strengths:** Free core with unlimited learn mode and practice tests; One-click Quizlet import preserves formatting and images; AI turns PDFs, slides, and lectures into study materials; Strong AP, SAT, and ACT prep resources plus a Chrome extension

**Limitations:** Some AI generation limits encourage upgrading to paid plans; Advanced study plans rely on accurate file uploads; Best experience requires creating an account to save materials

[Profile (Markdown)](https://openaitools.app/tool/knowt-com.md)

## Frequently Asked Questions

### How do Claude & Codex Plugins and Knowt compare in monthly traffic?

Claude & Codex Plugins has 0 monthly visits, while Knowt has 4,183,953. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Claude & Codex Plugins has a month-over-month growth rate of 0%; Knowt has +5.4%.

### How does pricing compare?

Claude & Codex Plugins: Free. Free to browse, search and use. Submitting or checking a plugin repository is also free. The site is operated commercially through an optional featured/paid listing program and a related cloud desktop product, but no fee is required to view the catalog or list a plugin. Knowt: Free. Knowt's core features are free: unlimited learn mode, free practice tests, flashcard creation, imports, and AI study tools with reasonable usage limits. Optional paid upgrades (Plus/Unlimited-style tiers) unlock higher AI generation limits and premium features. No credit card is required to start studying.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Studocu](https://openaitools.app/tool/studocu-global) | 39,297,122 | +1.1% | Freemium | Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation. | [.md](https://openaitools.app/tool/studocu-global.md) |
| 2 | [Gizmo](https://openaitools.app/tool/gizmo-ai) | 9,273,984 | +18.2% | Freemium | Gamified AI study application converting notes into flashcards and quizzes, but with a more playful interface. | [.md](https://openaitools.app/tool/gizmo-ai.md) |
| 3 | [Solvely AI](https://openaitools.app/tool/solvely-ai) | 4,526,289 | +134% | Freemium | Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards. | [.md](https://openaitools.app/tool/solvely-ai.md) |
| 4 | [StudyFetch](https://openaitools.app/tool/study-fetch) | 1,750,520 | +1.7% | Freemium | Interactive AI learning platform turning course materials into flashcards and quizzes, but with more video explanations. | [.md](https://openaitools.app/tool/study-fetch.md) |
| 5 | [Studley AI](https://openaitools.app/tool/studley-ai) | 1,031,545 | -19.5% | Freemium | Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence. | [.md](https://openaitools.app/tool/studley-ai.md) |
| 6 | [Studydrive](https://openaitools.app/tool/studydrive) | 864,081 | -29.1% | Freemium | University learning platform combining shared notes with AI flashcard generation, but heavier community focus. | [.md](https://openaitools.app/tool/studydrive.md) |
| 7 | [Flashka](https://openaitools.app/tool/flashka) | 805,913 | +2% | Freemium | Personalized AI study assistant creating flashcards and mind maps from lecture recordings, but smaller user community. | [.md](https://openaitools.app/tool/flashka.md) |
| 8 | [Mindgrasp](https://openaitools.app/tool/mindgrasp) | 672,288 | -0.5% | Freemium, Free Trial | AI learning assistant converting lectures and documents into study guides and flashcards, but less free-tier friendly. | [.md](https://openaitools.app/tool/mindgrasp.md) |
| 9 | [Revisely](https://openaitools.app/tool/revisely-com) | 512,137 | -2.3% | Freemium | AI study platform transforming notes and videos into quizzes and summaries, but with fewer collaborative features. | [.md](https://openaitools.app/tool/revisely-com.md) |
| 10 | [SkillsMP — Agent Skills Marketplace](https://openaitools.app/tool/agent-skills-marketplace) | 470,744 | -3.7% | Free | Search and study millions of public SKILL.md agent skills | [.md](https://openaitools.app/tool/agent-skills-marketplace.md) |

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Source: https://openaitools.app/compare/claude-codex-plugins-vs-knowt-com

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