AI · alternatives · 2026
24 alternatives to Kotoba Sensei
AI Japanese furigana generator & reading tool
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Free furigana converter: Add hiragana, katakana, or romaji to Japanese text, PDFs, images & ebooks. No signup required. Try it instantly.
May 2026 · ezfurigana.com · its alternatives →
- 2
- 3
Turn any webpage into a Japanese reading lesson
Jul 2026 · its alternatives →
- 4
- 5
- 6OS
Complete AI Platform: RAG Systems & Intelligent Agents for Local AI
2025 · rlama.dev · its alternatives →
- 7
Fujiyama▲192Practice natural Japanese conversation in real-time with AI
2024 · apps.apple.com · its alternatives →
- 8
- 9
KanjiLens▲120Kanji Lens is a Japanese manga translator and learning tool.
Jan 2026 · kanjilens.com · its alternatives →
- 10IM
The idea is actually quite simple. As a Japanese learner and a coder, I've always wanted there to be an open-source, 100% free for learning Japanese, similar to Monkeytype in the typing community. Unfortunately, pretty much all language learning apps are closed-sourced and paid these days, and the ones that are free have unfortunately been abandoned. But of course, just creating yet another language learning app was not enough - there has to be a unique selling point. And then I thought to myself: why not make it crazy and do what no other language learning app ever did by adding a gazillion…
2025 · kanadojo.com · its alternatives →
- 11
- 12
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 →
- 13
Toku Reader▲111Read & listen to native Japanese and Chinese, tap any word
Jul 2026 · apps.apple.com · its alternatives →
- 14
Japanese dictionary app for iPhone and iPad with kanji lookup, example sentences, flashcards, OCR photo lookup, and a Safari extension for reading Japanese.
2015 · nihongo-app.com · its alternatives →
- 15
TextGenieAI▲109Assistive writing enhancement tool for macos using selection
2025 · textgenieai.com · its alternatives →
- 16
Turn anything into a language lesson, instantly
2022 · roshi.ai · its alternatives →
- 17
Translate manga, scans or images with the power of AI
2022 · scan-translator.com · its alternatives →
- 18
The missing tool for learning Japanese
Mar 2026 · getwakatta.com · its alternatives →
- 19
I was talking with a friend (@finnvoid) about how we could make it easier to practice their hiragana and katakana reading while they are living in Japan. After some quick basic idea-crafting with Gemini, they took it and ran with to, building "Jordle" a Wordle-esque tool to help them (and you) learn your furigana. Playing is easy, your goal is to transliterate the shown characters into the romaji (romanization). Pick between the two character sets (hiragana and katakana) or both to practice. Data is local to the device, so it's pretty snappy and technically works offline. We'll probably be…
Dec 2025 · jordle.io · its alternatives →
- 20
Turn text, image, audio, ppt into videos with AI avatar
2025 · kreadoai.com · its alternatives →
- 21
ColibotAI▲84Translate, summarize & explain any text on-device
Jun 2026 · edoardoguzzi.com · its alternatives →
- 22
Wakatta▲4Learn Japanese from the podcasts you already love
Jul 2026 · wakatta.app · its alternatives →
- 23
Mangaka.app▲103Edit your AI-generated manga directly on the page
2025 · mangaka.app · its alternatives →
- 24
Learn Japanese hiragana and vocabulary with cute characters
2023 · apps.apple.com · its alternatives →
Also compare
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 →