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7,178 cards, already written and checked, on the subjects people actually study. Flip through a deck to revise, or take it as a timed, scored quiz and send the result to a friend. Nothing to install, no login, and the first 30 cards of every deck are free — 30 of the decks are no longer than that, so they play free in full.
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- Every card was checked, and we say which way — a chemist read the periodic table, an anatomist the bones and muscles, a phonetician the homophones. Not a sample: 5,420 cards across 30 decks, all of them, and one deck was withdrawn from the site rather than shipped with a known problem. The other 48 came a different way: two independent published sources for every card, enforced by a script, then re-verified by a second specialist working from sources of their own.
Maths flashcards
6 decks · 726 cards
Multiplication Facts 1–12Every product from 1 × 1 to 12 × 12, in order, with nothing missing and nothing duplicated.144 cards · Grades 3–5Play nowDivision Facts ÷1–12Every division fact through 144 ÷ 12 — generated from the multiplication table, so none has a remainder.144 cards · Grades 3–5Play nowAddition Facts 0–12Every sum from 0 + 0 to 12 + 12 — the whole table, in order.169 cards · Grades K–2Play nowUnit Circle & Trig IdentitiesEvery exact value on the unit circle plus the identity sheet, with the signs checked.112 cards · Grades 10–12Play nowCalculus AB: Derivatives & IntegralsThe derivative and integral table an AP Calculus AB student has to recall cold.122 cards · Grades 11–12 / APPlay nowRoman NumeralsThe seven symbols, the six subtractive pairs, the rules, and why clocks show IIII.35 cards · Grades 3–8Play now
English & reading flashcards
13 decks · 1,017 cards
Greek & Latin RootsThe root families that unlock whole shelves of vocabulary — each one with its meaning, its origin and the words it lives in.192 cards · 4–10Play nowPrefixes & SuffixesEvery prefix and suffix a vocabulary unit teaches, each with what it does to a word and three words it does it to.114 cards · 3–9Play nowLiterary Devices & Figurative LanguageThe figurative language, poetry and story terms an exam question names, each with a plain example.111 cards · 6–12Play nowHomophones & Commonly Confused WordsThe word sets that cost marks in every piece of writing, each with a one-line way to tell them apart.150 cards · 3–8Play nowIrregular VerbsEvery irregular verb an English class is asked for, with its past tense and past participle in the order a test asks for them.175 cards · 3–10Play nowProofreading & Editing MarksThe US proofreaders’ marks of the Chicago list, each described in words, not pictures.30 cards · Grades 6–12Play nowPunctuation Marks & What They DoEvery common punctuation mark, the job it does, and where US and UK usage part company.23 cards · Grades 4–10Play nowThe Eight Parts of SpeechThe eight traditional word classes, each with a definition card and a spot-the-word card.16 cards · Grades 4–9Play nowIPA Symbols for English SoundsThe IPA symbols two dictionary keys use for the sounds of English, with the accent each one belongs to.52 cards · Grades 9–12Play nowCollective Nouns for AnimalsGroup names for animals — every one checked in a dictionary, and the medieval ones marked.43 cards · Grades 4–12Play nowLatin Abbreviations in Englishe.g., i.e., cf., viz., ibid. — what each one stands for, what it means and where it belongs.29 cards · Grades 7–12Play nowShakespeare: Every Play by GenreAll 38 plays with the genre the 1623 First Folio gave them — and where modern editors disagree.38 cards · Grades 8–12Play nowBloom's Taxonomy: Verbs by LevelBoth editions side by side: the 1956 nouns, the 2001 verbs, and which level a verb really sits at.44 cards · Grades 9–12Play now
Science flashcards
16 decks · 804 cards
Periodic Table: All 118 ElementsSymbol on the front; name, atomic number and category on the back.118 cards · Grades 7–12Play nowBones of the Human BodyEvery named bone, with the region it belongs to and where to find it.106 cards · Grades 9–12 / health science CTEPlay nowMuscles of the Human BodyOrigin, insertion and action for the muscles a course actually names.102 cards · Grades 9–12 / CTEPlay nowPhysics Formulas & SI UnitsBase units, prefixes, derived units and the formulas that use them.117 cards · Grades 9–12Play nowAstronomy: Solar System & the 88 ConstellationsAll 88 constellations with their brightest star, plus the planets.122 cards · Grades 5–12Play nowMohs Hardness ScaleThe ten reference minerals, the field-test objects, and why the steps are not equal.17 cards · Grades 6–12Play nowThe Beaufort Wind ScaleForce 0 to 12 with the WMO name, the speed in knots and mph, and what you see.13 cards · Grades 6–12Play nowCloud Types & What They MeanThe ten WMO cloud genera with their official definitions, plus the three height levels.16 cards · Grades 5–12Play nowThe Geologic Time ScaleEons, eras and periods with what defines each, on the current ICS chart.29 cards · Grades 8–12Play nowMetric & SI Prefixes: Quetta to QuectoAll 24 SI prefixes, quetta to quecto — symbol, power of ten and the case rule.24 cards · Grades 6–12Play nowSI Base & Derived UnitsThe 7 base units and all 22 named derived units — what each measures and how it is fixed.29 cards · Grades 9–12Play nowPeriodic Table: Groups & FamiliesEach named group, block and family — which elements it holds and what defines it.19 cards · Grades 9–12Play nowScience Lab Equipment28 pieces of lab apparatus and what each is really for — including the confusable pairs.28 cards · Grades 7–12Play nowTaxonomy: Domain to SpeciesThe ranks in order, what each one means, the mnemonics, and one worked example.18 cards · Grades 6–12Play nowThe Human Body SystemsThe eleven organ systems — the organs in each and the job each one does.23 cards · Grades 6–12 / health science CTEPlay nowBlood Types & Transfusion CompatibilityABO and Rh, antigens and antibodies, and who can give red cells or plasma to whom.23 cards · Grades 9–12Play now
World languages flashcards
14 decks · 1,784 cards
Spanish 1 Core VocabularyThe first-year Spanish word list, nouns printed with their articles.326 cards · Grades 6–12Play nowSpanish Present-Tense ConjugationEvery present-tense form of the verbs a Spanish 1 or 2 class drills.150 cards · Grades 7–12Play nowFrench 1 Core VocabularyFirst-year French vocabulary with the article on the front and the gender on the back.325 cards · Grades 6–12Play nowGerman 1 Core VocabularyFirst-year German vocabulary with der, die or das printed on every noun.323 cards · Grades 6–12Play nowJapanese Hiragana & KatakanaEvery kana a beginner has to recognise — both syllabaries, straight through.208 cards · Grades 6–12Play nowThe Greek AlphabetAll 24 letters, upper and lower case, with their names and Classical Attic sounds.24 cards · Grades 6–12Play nowThe Russian Cyrillic AlphabetAll 33 letters, with the six that look Latin but are not flagged on the card.33 cards · Grades 6–12Play nowThe Hebrew AlphabetThe 22 letters and the five final forms, with Modern Israeli sounds.27 cards · Grades 6–12Play nowKorean Hangul: Consonants & VowelsEvery hangeul letter with its Revised Romanization value — South Korea's own standard.43 cards · Grades 6–12Play nowThe Arabic AlphabetAll 28 letters in their independent form, each with its name and romanization.33 cards · Grades 6–12Play nowSpanish Days, Months & SeasonsThe whole Spanish calendar — seven days, twelve months, four seasons, all lowercase.23 cards · Grades 6–12Play nowFrench Days, Months & SeasonsThe whole French calendar — seven days, twelve months, four seasons, all masculine.23 cards · Grades 6–12Play nowGerman Days, Months & SeasonsThe whole German calendar — every day, month and season masculine and capitalised.23 cards · Grades 6–12Play nowTagalog Core VocabularyCore Tagalog words with the markers, pronouns and the po that a learner actually needs.223 cards · Grades 6–12Play now
Social studies flashcards
7 decks · 688 cards
50 States: Capital, Abbreviation & NicknameEvery state three ways: its capital city, its two-letter postal code, and its nickname.150 cards · Grades 3-8Play nowWorld CapitalsEvery country the UN recognises, with its capital — and the honest answer where a country has more than one.195 cards · Grades 5-12Play nowAP US Government: Required Cases & DocumentsEvery required Supreme Court case and foundational document in AP U.S. Gov, with holdings.27 cards · Grades 11–12Play nowContinents & OceansThe seven continents and the five named oceans, with the models that disagree.13 cards · Grades 3–8Play nowUS State Postal AbbreviationsAll 50 states plus DC in USPS two-letter form, and how they differ from AP style.58 cards · Grades 4–12Play nowWorld Currency Codes (ISO 4217)The ISO 4217 code and currency name for the world's most-traded currencies.44 cards · Grades 8–12Play nowEvery Country and Its ContinentAll 195 countries placed on a continent by the UN's own M49 geoscheme.201 cards · Grades 6–12Play now
Career, tech & modern flashcards
15 decks · 1,097 cards
Computer Science & Coding VocabularyThe vocabulary an intro coding course uses before it ever explains it.119 cards · Grades 6–12Play nowMedical Terminology Word PartsLearn the parts and you can read a term you have never seen before.479 cards · Grades 9–12 / Health SciencePlay nowFinancial Literacy & Personal Finance TermsThe money vocabulary a first pay cheque, a first loan and a first tax form all assume.121 cards · Grades 7–12Play nowNATO Phonetic AlphabetAll 26 ICAO/NATO code words plus the ten spoken digits, with official pronunciations.36 cards · Grades 6–12Play nowMorse Code: Letters, Numbers & PunctuationInternational Morse for A–Z, 0–9 and punctuation — pairs with our Morse code translator.48 cards · Grades 6–12Play nowBraille: Letters, Numbers & PunctuationUnified English Braille by dot number — pairs with our braille translator tool.52 cards · Grades 6–12Play nowOSI Model: The Seven LayersAll seven OSI layers by number and job, what runs at each, and both order mnemonics.24 cards · Grades 9–12Play nowCommon TCP & UDP PortsThe port numbers a Network+ or CCNA exam asks for, each with its service and transport.36 cards · Grades 9–12Play nowHTTP Status CodesThe five status classes and the codes worth knowing, defined against RFC 9110.35 cards · Grades 9–12Play nowCommon File ExtensionsWhat each common file extension actually is, and the kind of program that opens it.38 cards · Grades 6–12Play nowPhlebotomy Order of DrawThe CLSI tube sequence — colour, additive, purpose, and why the order is not optional.15 cards · Grades 11–12 / health science CTEPlay nowResistor Colour CodeDigit, multiplier and tolerance for every band colour, plus 4- and 5-band readings.27 cards · Grades 9–12Play nowChess: How Every Piece MovesEvery piece's move, plus castling, en passant, promotion and the drawing rules.24 cards · Grades 4–12Play nowThe Five Mother Sauces & Their DaughtersThe five leading sauces of the English Escoffier, what each is built from, and the daughters of each.26 cards · Grades 9–12 / culinary arts CTEPlay nowFire Extinguisher Classes & PASSFire class letters in the US, Europe and Australia — and why they do not match.17 cards · Grades 9–12 / CTE and workplace-safety courseworkPlay now
Music, art & health flashcards
4 decks · 316 cards
Music Theory: Notes, Values, Keys & Italian TermsStaff note names, note values, every key signature and the Italian a score expects you to read.160 cards · Grades 3–12Play nowArt: Elements, Principles, Vocabulary & MovementsThe vocabulary of an art room, from chiaroscuro to the Bauhaus, on a single shelf.120 cards · Grades 4–12Play nowBaseball Positions & Scorekeeping NumbersAll nine fielding positions by their scorecard numbers, plus the notation they build.17 cards · Grades 4–12Play nowZodiac Signs: Dates, Symbols & ElementsThe twelve signs with glyph, dates, element and modality — astrology, not astronomy.19 cards · Grades 5–12Play now
Early years flashcards
3 decks · 746 cards
Dolch Sight Words — the Complete ListAll 220 Dolch service words plus the 95 Dolch nouns, each card naming the list it comes from.315 cards · PreK–3Play nowFry Instant Words 1-300The first three hundred Fry Instant Words, in order, each card naming its hundred.300 cards · K–3Play nowWord Families & RimesEach card is one rime with four or five real words that rhyme, from -ab to -y.131 cards · K–2Play now
Questions about these flashcards
- Are these flashcards free?
- Yes. The first 30 cards of every deck are free to play and free to download, with no account and no sign-up. 30 of the 78 decks are no longer than that, so they play free in full. Unlocking the rest of a longer deck is a one-off $2.99, or $11.99 a month covers all 78 and removes the ads.
- Can I play flashcards online without downloading anything?
- Yes. Every deck runs in the browser on a phone, tablet, Chromebook or projector. There is nothing to install and no login. Practice mode flips through the cards in either direction; game mode makes you answer each card before it flips, times the run and scores it. Every deck is dealt in a fresh random order each time you open it, so you are recalling the card rather than its position.
- What subjects are covered?
- 78 decks across maths, English and reading, science, world languages, social studies, career and tech, the arts and early years — including Spanish and French vocabulary, all 118 elements, the times tables, the bones and muscles of the body, Greek and Latin roots, and the Dolch and Fry sight word lists.
- Can I use these flashcards in my classroom?
- Yes. Project a deck and run it as a whole-class quiz, or share the link so students play on their own devices. No student accounts are created and no student data is stored.
- Can I make my own flashcard deck?
- Yes, free. The live flashcard maker turns any list of terms and definitions into a deck with its own shareable link and QR code, and the printable maker lays the same list out as double-sided cards to cut up.