Shiritai知りたい
Your Japanese reading companion

Understand Japanese
どこでも。

Shiritai puts readings where you need them and explanations one right-click away. No tab juggling. No dictionary detours.

Add to Chrome
Furigana readings displayed above kanji on a Japanese post
「これ、わかる!」

How Shiritai keeps you reading

Support when you need it. Real Japanese when you don’t.

01ページで読む

Read without stopping.

Turn the Japanese already on the page into approachable reading practice. Clean hiragana appears above kanji while every sentence stays in place.

  • Local dictionary
  • Real web pages
  • Original text intact
Furigana readings displayed above kanji on a Japanese post
02自分に合わせる

Make the reading yours.

Open one small control, toggle furigana, and resize the readings for your eyes. Shiritai remembers the setting for next time.

  • One-click toggle
  • Adjustable size
  • Saved setting
Shiritai extension popup with furigana controls and text-size slider
03もっと深く知る

Understand what readings cannot explain.

Highlight any tricky phrase and send it to Shiritai for translation, grammar, vocabulary, kanji, and the nuance native posts rarely spell out.

  • Right-click explain
  • Prefilled text
  • Nuance included
Explain with Shiritai shown in the browser context menu

From install to understanding

Three steps. No setup spiral.

  1. Add Shiritai

    Install the extension and pin it to your Chrome toolbar.

  2. Turn on readings

    Click the Shiritai icon to add furigana to the page you are reading.

  3. Explain anything

    Select a difficult phrase, right-click, and open its Shiritai study card.

Private by default

Readings stay on your device.

Local furiganaNo page text sent
  • Furigana is local.Readings are generated in your browser using a built-in dictionary. Page text does not leave your device just to show readings.
  • “Explain” sends only your selection.Only the snippet you deliberately highlight is sent to shiritai.app to build your study card.
  • Minimal permissions.Shiritai activates on the current tab when you click it. It does not ask for access to every site you visit.

Good to know

Frequently asked

Need more help? Visit the support page or read our privacy policy.
Is it free?

Yes. The extension is free to install, and furigana works without an account. Explaining a selection uses the shared daily limit on shiritai.app.

Does furigana need the internet?

No. Readings run entirely in your browser using a built-in dictionary, so they work offline on any page.

Which browsers are supported?

Any Chromium browser with extension support, including Chrome, Edge, Brave, and Arc.

Furigana isn’t showing on a page

Refresh tabs that were already open when you installed the extension. Then confirm the popup toggle is on and the page contains Japanese text.

Is my reading data sent anywhere?

Showing furigana sends nothing. Only text you deliberately choose to explain is sent to shiritai.app.

Free for Chromium browsers

Turn the next Japanese page into a reading lesson.

Add to Chrome