Kazu Navi (かずナビ)

What it does

Kazu Navi (かずナビ) is your guide to learning Japanese—starting with numbers and expanding into grammar, sentence structure, and context. Analyze tricky phrases, dive deeper with interactive modular tools. Learn with clarity, confidence, and cultural insight.

Master Japanese numbers, grammar, and meaning with interactive tools and natural translations. Free Japanese learning tools for all levels.

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  Learn Japanese contextually while browsingDec 2025 · lingoku.ai · ▲92

  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…

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  MainichiJul 2026 · mainichiapp.com · ▲133

  Learn Japanese, one prefecture at a time.

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  Fujiyama2024 · apps.apple.com · ▲192

  Practice natural Japanese conversation in real-time with AI

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  Kann2024 · kann.app · ▲173

  Master Japanese vocabulary you care about!

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  Mainichi2015 · mainichi.me · ▲112

  Learn Japanese each time you open a new tab

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  AI Japanese Tutor2025 · aijapanesetutor.org · ▲13

  Fluency through Speech: Conversational AI Japanese Tutor

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

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  Tapflow 2.0▲1,125

  We built Tapflow for devs, designers, PMs, and tech folks who’ve been sitting on internal docs, templates, and systems — but never productized them. Upload a PDF, notes, or workshop deck, and Tapflow drafts a structured product (with chapters, teaser and pricing plans). It’s good for AI kits, onboarding guides, design systems, and frameworks. You can sell through Stripe, LemonSqueezy, or PayPal. Real-time collaboration is in early beta. No site builder, no LMS — clean design and just focused tools to ship. Fully bootstrapped and just launched on PH today →…

  Work · 2025 · tapflow.ai

• C9
  Clippy – 90s UI for local LLMs▲1,122

  Life & fun · 2025 · felixrieseberg.github.io

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  Appwrite Sites▲990

  Appwrite 2.0 brings a new engine, a rebuilt Console, five database types, an S3 API, an OAuth 2.1 server, and organization-level Domains and Firewall.

  Dev tools · 2025 · appwrite.io

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  AI Meeting Notes by Notion▲965

  Perfect meeting memory in Notion

  AI · 2025 · notion.com

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  Den▲948

  Multiplayer AI agent builder

  AI · 2025 · getden.io

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  Raycast for iOS▲870

  Powerful productivity on the go

  AI · 2025 · raycast.com