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Life & fun · alternatives · 2026

24 alternatives to Rikaikun

Read Japanese in-line in Chrome (sweet!)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Rikaikun launched in 2017; newer entries below may have overtaken it.

  1. 1
    Mainichi▲112

    Learn Japanese each time you open a new tab

    2015 · mainichi.me · its alternatives →

  2. 2

    Browser addons: Mouse over Japanese to view its translation.

    2016 · addons.mozilla.org · its alternatives →

  3. 3
    Taptaro▲130

    Tap. Learn. Repeat. 450+ free Japanese words and phrases

    2017 · taptaro.co · its alternatives →

  4. 4

    Read & listen to native Japanese and Chinese, tap any word

    Jul 2026 · apps.apple.com · its alternatives →

  5. 5

    Learn Japanese with every new tab

    2019 · chromewebstore.google.com · its alternatives →

  6. 6
    Nihongo▲73

    A modern Japanese dictionary and study tool

    2016 · nihongo-app.com · its alternatives →

  7. 7

    Hi HN, Just wanted to share a tool i've been working on to help with my own study routine. It’s a browser extension called Lingoku. The idea is simple: we spend hours browsing the web in English every day. This tool replaces some of the english words with Japanese vocabulary based on your japanese level (Similar to Toucan, but with a better user experience). It’s basically an attempt to make the "i+1" method actually passive, you understand the sentence because it's mostly english, but you pick up Japanese words naturally from the context. It uses an LLM in the backend to make sure the…

    Dec 2025 · lingoku.ai · its alternatives →

  8. 8
    LanGo▲140

    Learn Japanese with 1000 phrases and smart flashcards

    2016 · apps.apple.com · its alternatives →

  9. 9

    Translate manga, scans or images with the power of AI

    2022 · scan-translator.com · its alternatives →

  10. 10

    Learn Japanese with 1000 phrases and intelligent flashcards

    2016 · ling-app.com · its alternatives →

  11. 11
    Spreed▲66

    Speed reading in Chrome

    2014 · chromewebstore.google.com · its alternatives →

  12. 12

    Free Spitz-type speed reader for Chrome

    2015 · chromewebstore.google.com · its alternatives →

  13. 13

    Get ¯\_(ツ)_/¯ and other kaomojis right from your menu bar

    2017 · return.github.io · its alternatives →

  14. 14

    One-click copy and paste kawaii Kaomoji: Japanese emoticons

    2016 · jemoticons.com · its alternatives →

  15. 15

    I quit my job last year and worked mostly on this full SwiftUI rewrite of my Japanese reading app, Manabi Reader. The rewrite gave me the opportunity to expand to macOS (and without Catalyst so it feels extra native) and redo the data layer to be offline-first via Realm with iCloud sync. The biggest differentiators compared with other language study apps are that it tracks every word/kanji you read so that you can see how much of a given webpage/article you're already familiar with and other features/analytics built on that foundation; it automatically builds a personal corpus…

    2023 · reader.manabi.io · its alternatives →

  16. 16
    Madein▲95

    Japan delivered to your door

    2014 · its alternatives →

  17. 17
    SHIUI▲114

    Hinomaru Ink Web UI Kit in Japanese Hinomaru style

    Sep 2026 · shi-ui.vercel.app · its alternatives →

  18. 18

    Discovering the Land of Manga, Anime, Zen, and the Tea

    2015 · amazon.com · its alternatives →

  19. 19

    A Japanese guide to learning Japanese grammar

    2015 · apps.apple.com · its alternatives →

  20. 20
    Ru▲95

    Ru

    2020 · its alternatives →

  21. 21

    Chat turned into manga comic strips

    2014 · tplusinteractive.com · its alternatives →

  22. 22

    A small web browser with a thin interface

    2016 · oryoki.io · its alternatives →

  23. 23

    A new simple and fast HN Reader for iOS

    2015 · its alternatives →

  24. 24T
    Tori▲84

    Japanese listening practice built from your own sentences

    18d ago · play.google.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →