The best Japanese dictionary apps and websites by lookup job

For most beginners, the best Japanese dictionary is Jisho as the default search box. Use Takoboto when lookups happen on a phone, tablet, Kindle, or offline, or Yomitan when leaving the page has become the bottleneck. The main limit is context: no lookup tool teaches you how a word behaves across real sentences. Pick one default today and add a second tool only for a lookup it cannot complete.

This is a shortlist by job, not a ranking from one to five.

The shortest answer by lookup job

Lookup job	Start with	Setup	Main limit
Search an English word, romaji, or pasted Japanese	Jisho	Open the site	It does not define words inside the page you are reading
Look up words on a mobile device, Kindle, or offline	Takoboto	Install the app	It is still a separate search surface
Read a Japanese web page with popup definitions	Yomitan	Install the extension and dictionaries	More setup, and not a beginner course
Check a name, pitch field, or another set of examples	Jotoba	Open the site	Often unnecessary if the first result was already clear
Find a word inside subtitle lines	Immersion Kit	Search a known word	Context search is not a replacement for a dictionary

Best default search box: Jisho

Jisho is the most useful first answer because it asks for almost no setup. You can search from English, romaji, or Japanese and check words, kanji, and example sentences in a browser.

That makes it a good default during a textbook lesson, a short reading session, or the first months after learning kana. One familiar result layout is faster than asking three sites to vote on every word.

Jisho becomes less efficient when you are reading a full Japanese page. Copying a word, changing tabs, searching, and returning is a small interruption that repeats. Keep Jisho, but change the lookup workflow when the interruption is what stops you from reading.

Best mobile and offline option: Takoboto

Takoboto is the clearer choice when most lookups happen on a phone, tablet, Kindle, or when offline access matters. Its official apps page lists Android, iPhone, iPad, and Kindle downloads alongside the web version.

Do not install it merely because it is another free dictionary. If Jisho already answers your desktop lookups and you rarely study on a phone, Takoboto adds another interface without removing a bottleneck.

Its role is practical: make the lookup surface available where the Japanese is.

Best browser hover lookup: Yomitan

Yomitan changes the interaction. Instead of leaving a Japanese page, you invoke a popup on the word and see readings and definitions in place. Its documentation also supports loading dictionary files, which gives experienced readers more control over the information shown.

That speed matters when a page contains several unknown words. It can turn a stop-start search routine into continuous reading.

The cost is setup. You install the extension, choose dictionaries, and learn its controls. That work is justified when you already have pages you want to read. It is premature when you are still learning kana or looking for a course to tell you what to study.

Yomitan is a lookup layer. It does not choose material, teach a sequence, or decide which word deserves a flashcard.

Best second result for names and pitch: Jotoba

Jotoba is useful when a normal dictionary result is thin and the missing field is a name, pitch information, or another set of example sentences.

The important word is second. Opening Jisho and Jotoba for every lookup doubles scanning without guaranteeing a better decision. Keep one as the default. Reach for Jotoba when you can state what the first result did not answer.

That rule also makes it easy to leave. There is no migration project or study streak to preserve. Close the extra tab when the specialized job disappears.

Best subtitle sentence search: Immersion Kit

Immersion Kit searches Japanese words inside subtitle lines from anime and drama. It is most useful after a dictionary has already established the meaning and you want to see or hear how a word appears in media context.

This can support sentence mining from shows you already watch. It can also become an attractive way to collect examples instead of reading or listening. Use one line to answer a real question, then return to the source material.

Beginners still need a normal search box. Subtitle context is noisy evidence when the surrounding grammar is also unknown.

The two-tool rule

A stable dictionary setup has two roles at most:

1. one default lookup for ordinary words; and
2. one context tool for the environment where most reading happens.

For a beginner, that may be Jisho plus Takoboto. For a browser reader, it may be Yomitan with Jisho as a fallback. For a media-focused intermediate learner, it may be Yomitan plus occasional Immersion Kit searches.

Do not add a third tool until you can name a repeated failure in the first two. Different result counts, interface preferences, and one obscure word are not yet a workflow problem.

A ten-minute dictionary test

Take the same short paragraph and try five real lookups. Record three things: how long it takes to reach a usable answer, whether you can return to the sentence without losing your place, and whether the result explains enough to continue.

Keep the option that lets you finish the paragraph. A dictionary succeeds by sending you back to Japanese, not by keeping you inside the dictionary.

If the text itself is still too difficult, change the material before changing the lookup stack. Start with Japanese reading resources for beginners or the practical advice in read Japanese before you feel ready.