Research & Study Tools

Mathway solves problems across algebra, calculus, statistics, chemistry and physics, with steps and photo input.

Refdesk organizes quick reference links to facts, encyclopedias, newspapers and subject indexes.

This repository provides scripts for exploring a genome and receiving personalized explanations through natural dialogue.

Use Kalker as a calculator with custom variables, functions, differentiation and integration on desktop, mobile or web.

The National Library of Scotland preserves Scottish collections and offers stories, research resources, and item access information.

Affixes explains English word beginnings and endings through examples, with the page listing 1,250 entries and 10,000 examples.

The Phrontistery provides an online dictionary of obscure English words, etymologies and topical vocabulary lists.

Symbolab solves algebra, trigonometry and calculus problems step by step, with calculators for equations, derivatives and integrals.

OpenCalc provides calculator features in an Android app, according to its repository description.

Wordwall lets teachers create quizzes, matching games, flashcards and more than 30 classroom activity types.

MathDF solves derivatives, integrals, equations and inequalities step by step, with photo input and a math keyboard.

Phrases.org explains the meanings and origins of thousands of English phrases, idioms, sayings and proverbs.

Ozdic combines collocations, definitions, a thesaurus, idioms, examples and usage notes in one English lookup.

Fiji bundles ImageJ with additional components, as described by its project page.

Scrible saves, organizes, annotates and shares research articles and webpages in an online library.

Flashka turns notes, PDFs and slides into AI flashcards, quizzes and spaced-repetition study sessions.

Taguette supports qualitative analysis by tagging and annotating document collections with hierarchical labels.

Anki schedules digital flashcards with spaced repetition to help users review material over time.

Mammoth Memory uses visual imagery and mnemonics to help students remember facts for exams.

Numla organizes math notes in searchable documents with keyboard shortcuts for navigation and editing.

EncycloSearch searches more than two dozen encyclopedias and provides an ad-free, open-source reader.

Gizmo turns study material into AI flashcards and quizzes with spaced repetition and active recall.

ticalc.org archives user-contributed files for TI graphing calculator models, with sections for programs and hardware.

Open Syllabus maps college curricula across millions of syllabi and provides course matching and analytics.