Dictionary	Remarks	Load settings	License
英辞郎(EIJIRO)	英日(EN-JA )	Shift-JIS + EIJIRO	Purchase Required
和英辞郎(WAEIJIRO)	日英(JA-EN)	Shift-JIS + EIJIRO	Purchase Required
略語郎(RYAKUGORO)	英日(EN-JA )	Shift-JIS + EIJIRO	Purchase Required
EDICT	日英(JA-EN)	UTF-8 + TSV	CC BY-SA 3.0
Webster	英英(EN-EN )	UTF-8 + JSON	Project Gutenberg License

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For English learners:

• 英辞郎(EIJIRO) has a large vocabulary and is recommended to many users seeking an English-Japanese dictionary.
• If you need Japanese-English, importing 和英辞郎(WAEIJIRO) or EDICT is also recommended.

For Japanese learners:

• EDICT would be good for you because of its Kanji and Kana data.

This English-Japanese database boasts a wide-ranging English-to-Japanese vocabulary.

You can purchase the data for a very reasonable price of 486 yen!

https://booth.pm/ja/items/777563

After purchasing, download and extract the zip file to access the EIJIRO-1448.TXT file.

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To import this dictionary data, choose the following options:

Option	Value
Character set of dictionary data	Shift-JIS
Format of dictionary data	EIJIRO text data
Choose file	EIJIRO-1448.TXT

And click the "LOAD" button.

Please note that loading might take some time...

Finished.

You can now access extensive dictionary data at extreme speed!

Japanese-English data.

https://booth.pm/ja/items/2066537

To import this dictionary data, choose the following options:

Option	Value
Character set of dictionary data	Shift-JIS
Format of dictionary data	EIJIRO text data
Choose file	WAEIJI-1448.TXT

English-Japanese abbreviations and acronyms dictionary.

https://booth.pm/ja/items/1547490

To import this dictionary data, choose the following options:

Option	Value
Character set of dictionary data	Shift-JIS
Format of dictionary data	EIJIRO text data
Choose file	RYAKU144.TXT

Japanese-English Dictionary data that includes Kanji and Kana data.

https://mouse-dictionary.netlify.com/data/

To import this dictionary data, choose the following options:

Option	Value
Character set of dictionary data	UTF-8
Format of dictionary data	TSV
Choose file	ja_en_utf8.tsv

English-English Dictionary data.

You can download JSON format data, which you can import to Mouse Dictionary.

https://github.com/matthewreagan/WebstersEnglishDictionary

(dictionary.json)

License: Project Gutenberg License

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To import this dictionary data, choose the following options:

Option	Value
Character set of dictionary data	UTF-8
Format of dictionary data	JSON
Choose file	dictionary.json

You can import your own dictionary data.

• Create your own dictionary data

Let me know if you know great dictionary data!