Anki
Education & Learning
A spaced-repetition flashcard program. The desktop version is free and cards sync across devices via AnkiWeb.
Free plan
Education & Learning: apps for Web browser
16 apps
16 apps that APP NAVI confirmed from official sources to run on Web browser. Last checked: 2026-11-05. Anything we could not confirm stays "Unverified"; we never guess. Prices and specs change, so check each app's official page before you use it.
Education & Learning — see all apps →
AtCoder
Education & Learning
A competitive programming site that holds regular contests of several kinds such as ABC, ARC and AGC, with rankings and practice contests.
Japanese UI
Exercism
Education & Learning
A free platform for learning and practicing programming, with exercises, mentoring and a CLI. It is run by a UK-registered not-for-profit.
Free plan
Jotoba
Education & Learning
A multilingual Japanese dictionary built on free resources. It covers words, kanji, names and radicals and exposes a public API.
Mochi
Education & Learning
A spaced-repetition flashcard app that doubles as a Markdown note tool. It is local-first and supports LaTeX plus language-learning aids such as dictionaries and text-to-speech.
Free planAI
Monkeytype
Education & Learning
A minimalistic, customizable typing test website with many test modes and an account system that stores speed and accuracy history.
Smalruby
Education & Learning
A programming learning environment, modelled on Scratch, where children build programs and robots with Ruby. It is developed by the NPO Ruby Programming Shounendan.
Japanese UI
Sonic Pi
Education & Learning
A free open-source tool for making and performing music by writing code. The official site says it runs in the browser and also ships as apps for Windows, macOS and Linux.
Free plan
Tatoeba
Education & Learning
A collaborative multilingual sentence collection with translations, useful for finding example sentences when learning languages; it has a Japanese interface.
Free planJapanese UI
The Odin Project
Education & Learning
A free, open-source coding curriculum that can be taken entirely online. It offers a roadmap to full-stack development with hands-on projects and is maintained by volunteers.
Free planIndie
WaniKani
Education & Learning
A web app that teaches kanji and vocabulary through mnemonics and spaced repetition, made by Tofugu.
Zotero
Education & Learning
A research tool for collecting, organizing, annotating and citing sources, developed by a nonprofit and free to use.
Free plan
ドットインストール (dotinstall)
Education & Learning
A programming learning service built on videos of three minutes or less. Its top page lists 578 lessons and 8,635 videos, and it is run by dotinstall Inc. in Meguro, Tokyo.
Free planJapanese UI
ドリトル (Dolittle)
Education & Learning
A programming language designed for education. The official site says it is used in textbooks and supplementary materials for junior and senior high schools and in classes from elementary school to university.
Japanese UI
なでしこ3 (Nadesiko3)
Education & Learning
An open-source programming language in which programs are written in Japanese, aimed at automation and learning to program. A web version and a PC (Go) version are available.
Free planJapanese UI
ビスケット (Viscuit)
Education & Learning
A visual programming language for kids built around a single concept, the glasses, to make pictures move and react.
Japanese UI