# Japanese study tools

> Free browser tools for kana, conjugation, study-stack choices, SRS workload, and JLPT calendars. No account, no ads, and answers stay on your device.

Canonical: https://studyjapanese101.com/tools
Last updated: 2026-11-12

Use a tool when a calculation or a drill is the decision. The written explanation on each page still works with JavaScript off.

- [Hiragana and katakana quiz](https://studyjapanese101.com/tools/kana-quiz) - Drill hiragana and katakana in the browser. No account. Misses stay on this device so you can review the weak rows next.
- [Japanese conjugation drill](https://studyjapanese101.com/tools/conjugation-drill) - Type polite, negative, past, te-form, and later verb voices for a curated in-repo list. Misses show the rule.
- [Japanese Level Self-Check: Beginner Foundations](https://studyjapanese101.com/tools/japanese-level-self-check) - This short self-check covers kana, vocabulary and grammar. It helps you choose what to practise next; it does not predict a JLPT result or measure your full Japanese level.
- [Japanese study stack builder](https://studyjapanese101.com/tools/study-stack-builder) - Pick the smallest useful Japanese stack from the site's editorial catalog. The written tree still works with JavaScript off.
- [Japanese Textbook Chooser: Tobira or Quartet?](https://studyjapanese101.com/tools/textbook-chooser) - Tobira and Quartet both follow beginner Japanese study. Use your class assignment and preferred lesson format to choose one series, or compare samples before you decide.
- [JLPT Test Length Calculator: N5 to N1](https://studyjapanese101.com/tools/jlpt-test-length) - JLPT test sections range from 90 minutes at N5 to 165 minutes at N1. Choose your level and add confirmed breaks; check-in and other venue time are separate.
- [JLPT weekly study planner](https://studyjapanese101.com/tools/jlpt-planner) - Enter a level, weekly hours, and comfort. The page splits time by official section lengths. It does not predict a pass.
- [Romaji to Hiragana and Katakana Converter](https://studyjapanese101.com/tools/romaji-kana-converter) - Type a Japanese spelling in romaji to see hiragana or katakana, or turn kana into romaji. This tool converts writing, not English words into Japanese.
- [SRS workload simulator](https://studyjapanese101.com/tools/srs-workload-simulator) - See how new cards turn into later reviews. The projection uses a published interval ladder. It is not Anki, FSRS, or WaniKani.