
SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.

DeClassIFY records 0 monthly visits with — month-over-month growth and Freemium pricing. Studocu records 39,297,122 monthly visits with +1.1% growth and Freemium pricing.

Classify PDF files in seconds so you stop reading paperwork you don't need
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chromewebstore.google.com | studocu.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 0 (0) | 39.3M (39,297,122) |
| MoM Traffic Delta | 0 (—) | +430.47K (+1.1%) |
|---|
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (12.3%) |
|---|
| Direct Visits / mo | 0 | 6.5M |
|---|
| User Rating | 4.2 | 4.4 |
|---|
| Supported Platforms | Browser Extension | Website |
|---|

Classify PDF files in seconds so you stop reading paperwork you don't need
Reads a PDF and assigns it a document category immediately, so you can decide whether it deserves your attention.
Turns a pile of unsorted PDFs into labelled groups you can scan quickly instead of opening file by file.
The extension is only a few hundred kilobytes, so it loads fast and does not slow browsing down.
The developer declares that user data is not collected, sold or used for unrelated purposes.

Share and access study materials worldwide — with AI study tools built in
Search a vast, student-contributed library of lecture notes, summaries, study guides and past exams organised by course and institution.
Generate notes, summaries and revision material from documents so you can study the essentials instead of re-reading everything.
Turn study material into interactive quizzes and flashcards so you can test yourself and target weak spots.
Use built-in text-to-speech to listen to study documents on the go, useful for revision during commutes or downtime.

SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.

Gamified flashcard and quiz creation from PDFs, but lacks Studocu's extensive crowdsourced student note library.
Free / Open-sourceStronger free flashcard creation and practice tests from notes, but less reliance on crowdsourced university document sharing.
A free, AI-powered PDF editor for every device
SpecialistTailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.

Excellent AI-driven video explainers and interactive study sets, but lacks Studocu's massive repository of crowdsourced course notes.

Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents
Chat with any PDF, video, or website and get cited answers in seconds
Converts multi-format lecture materials into audio podcasts and quizzes, but has a smaller community note repository.
Highlight the web, learn in public, and build your AI clone
Very similar shared university document database and study tools, but with a strong European student community focus.

SpecialistConverts course notes into personalized flashcards and mind maps, but lacks crowdsourced document sharing.
SpecialistGeneral-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.
Gamified flashcard and quiz creation from PDFs, but lacks Studocu's extensive crowdsourced student note library.
Free / Open-sourceStronger free flashcard creation and practice tests from notes, but less reliance on crowdsourced university document sharing.
SpecialistTailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.
Excellent AI-driven video explainers and interactive study sets, but lacks Studocu's massive repository of crowdsourced course notes.
Converts multi-format lecture materials into audio podcasts and quizzes, but has a smaller community note repository.
Highlight the web, learn in public, and build your AI clone
Very similar shared university document database and study tools, but with a strong European student community focus.
SpecialistConverts course notes into personalized flashcards and mind maps, but lacks crowdsourced document sharing.