Knowt 每月有 4,183,953 次造訪，月增率 +5.4%，定價模式為免費。Postgres Sandbox 每月有 445 次造訪，成長率 -17.3%，定價模式為免費。
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.
Postgres Sandbox (postgres.new) spins up real PostgreSQL databases directly in your browser using PGlite. Write SQL and a fresh database is created automatically — no install, no server. It pairs that sandbox with AI assistance for generating SQL, plus support for CSV import, charts, ER diagrams and semantic search experiments.
| 面向／指標 | | |
|---|---|---|
| 官方網域 | knowt.com | postgres.new |
| 定價模式 | 免費 | 免費 |
| 每月造訪次數 | 418.4萬 (4,183,953) | 445 (445) |
| 月流量變化量 | +21.48萬 (+5.4%) | -93 (-17.3%) |
| 主要市場與市佔 | 🇺🇸 美國 (69.6%) | 🇦🇷 阿根廷 (100%) |
| 每月直接造訪 | 274.15萬 | 183 |
| 使用者評分 | 4.3 | 4.5 |
| 支援平台 | 網站 | 網站 |
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.
Upload up to 30 files and Kai instantly produces notes, flashcards, summaries, and practice resources from them.
Convert Quizlet, Kahoot, Wayground, and YouTube content, or record live lectures to generate notes and study sets.
Upload class files to get a study plan and exam prediction that highlights what your professor emphasizes most.
Kai quizzes you by voice and can turn any note or flashcard into a podcast for study on the go.
Postgres Sandbox (postgres.new) spins up real PostgreSQL databases directly in your browser using PGlite. Write SQL and a fresh database is created automatically — no install, no server. It pairs that sandbox with AI assistance for generating SQL, plus support for CSV import, charts, ER diagrams and semantic search experiments.
A new PostgreSQL database is created automatically in your browser via PGlite — no server, no installation, no configuration.
An AI assistant helps generate and reason about SQL from natural-language prompts, lowering the barrier for schema and query work.
Load CSV data and start querying it directly, which makes the sandbox handy for quick analysis and data exploration.
Turn query results into charts and draw ER diagrams to visualise table relationships within the same workspace.
專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
互動式 AI 學習平台，可將課程教材轉為字卡和測驗，但包含更多影片解說。
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.
AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.
