# Auto Highlight vs Knowt

Auto Highlight records 0 monthly visits with — month-over-month growth and Free pricing. Knowt records 4,183,953 monthly visits with +5.4% growth and Free pricing.

| Metric | [Auto Highlight](https://openaitools.app/tool/auto-highlight) | [Knowt](https://openaitools.app/tool/knowt-com) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/auto-highlight/dnkdpcbijfnmekbkchfjapfneigjomhh | https://knowt.com/ |
| Categories | AI Article Summarizer, AI Summarizer, Open Source AI Models | AI Flashcard Maker, AI Notes Generator, AI Summarizer, AI Note Taker |
| Pricing Model | Free | Free |
| Monthly Visits | 0 | 4,183,953 |
| MoM Growth Rate | — | +5.4% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 2,741,505 |
| Review Score | 3.6 | 4.3 |
| Saved Count | 0 | 14 |
| Supported Platforms | Browser Extension | Website |

## Auto Highlight

Auto Highlight is a free Chrome extension built by independent developer Danny Adam (dannyadam.com). Instead of generating a summary somewhere else, it works directly on the page: click the highlighter icon in the address bar and the extension paints the most important sentences of the article in a highlight colour, giving you an instant visual tl;dr.

Under the hood it uses extraction-based summarization — sentences are scored by how frequently their terms appear across the whole article. That keeps it fast, entirely client-side and easy to understand, but also means it highlights important-sounding sentences rather than producing polished abstractive prose. The amount of highlighting is adjusted by clicking the icon repeatedly, and the icon itself shows less "ink" as coverage grows.

The extension is open source, with code hosted on GitHub, and its privacy policy states that it does not collect user data or transmit anything remotely. It is rated around 3.6 stars from roughly 25 reviews with about 20,000 users, and the last update (v3.6.0) landed in March 2024. It is best suited to standard HTML articles — news, blogs, long-form posts — rather than PDFs or scanned documents.

**Pricing & Plans:** Free. Auto Highlight has no paid plans, no subscription and no in-app purchases — it is distributed at no cost through the Chrome Web Store.

- **One-click page highlighting:** Click the highlighter icon in the address bar and the extension immediately marks the sentences that carry the article's core meaning.
- **Adjustable coverage on repeat clicks:** Each additional click increases or reduces how much of the article gets highlighted, so you can dial coverage up or down to taste.
- **Term-frequency sentence ranking:** Important sentences are ranked from term frequencies across the full article, a lightweight extraction-based summarization technique.
- **Visual ink-level indicator:** The toolbar icon visually shows "ink" running out as more highlighting is applied, giving instant feedback on current coverage.
- **Open source and privacy-first:** The source code is published on GitHub, the privacy policy states no data is collected or transmitted, and options stay local.

**Strengths:** Free and open source with code you can inspect; Instant tl;dr directly on the page — no copy-pasting into another tool; No account, no sign-up and no data collection; Adjustable highlight coverage via repeated icon clicks

**Limitations:** Term-frequency approach can highlight obvious or repeating sentences instead of the truly key points; Coverage is adjusted by clicking the icon repeatedly rather than by fine-grained controls; Last updated March 2024 and only rated 3.6, reflecting some inconsistent page results; No native support for PDFs or images — it is built for HTML article text

[Profile (Markdown)](https://openaitools.app/tool/auto-highlight.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 Auto Highlight and Knowt compare in monthly traffic?

Auto Highlight has 0 monthly visits, while Knowt has 4,183,953. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Auto Highlight has a month-over-month growth rate of —; Knowt has +5.4%.

### How does pricing compare?

Auto Highlight: Free. Free. Auto Highlight has no paid plans, no subscription and no in-app purchases — it is distributed at no cost through the Chrome Web Store. 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 | [Blinkist](https://openaitools.app/tool/blinkist) | 1,633,056 | +19.3% | Freemium, Free Trial, Paid | Bite-sized book and podcast insights you can finish in 15 minutes | [.md](https://openaitools.app/tool/blinkist.md) |
| 6 | [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) |
| 7 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Highlight the web, learn in public, and build your AI clone | [.md](https://openaitools.app/tool/glasp.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [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) |

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Source: https://openaitools.app/compare/auto-highlight-vs-knowt-com

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