Checking notation takes too long
Half-width and full-width characters, punctuation, and kana styles are mixed together, so final visual checks take longer than they should.
Free, no sign-up, browser only
End the tedious parts of text cleanup.
mojihen! is a text formatter for automating repeated Japanese text cleanup work. It handles width conversion, kana and alphanumeric cleanup, line breaks, delimiters, and replacement rules in one place.
Do these problems sound familiar?
You repeat the same cleanup every time
Removing stray tags, deleting duplicate lines, and aligning line breaks are repeated manually for each job.
CSV cleanup before Excel is annoying
Delimiter fixes and whitespace cleanup before pasting into spreadsheets keep eating time.
What mojihen! fixes
Unify notation in one pass
Clean up width, kana, punctuation, and line breaks together to shorten visual QA time.
Turn repeated cleanup into templates
Save and reuse cleanup settings so repeated project work stays consistent without manual repetition.
Finish CSV preprocessing faster
Convert CSV, TSV, PSV, or spaced text as needed before pasting into Excel or another tool.
Before / After examples
Editing text before publishing
Before
ABC株式会社 ｻｰﾋﾞｽ開始日:２０２６/０２/２１ お問い合わせ [email protected]
After
ABC株式会社 サービス開始日:2026/02/21 お問い合わせ [email protected]
Cleaning up inquiry logs
Before
＜p＞注文番号：００１２３＜/p＞ ＜p＞注文番号：００１２３＜/p＞ 確認お願いします。
After
注文番号:00123 確認お願いします。
Use cases
Web editors
Unify notation, punctuation, and line breaks before publishing so fewer fixes come back after review.
Customer support
Use replacement tables to keep template replies consistent across the team and shorten response time.
Development and data prep
Clean delimiters and extra lines before imports or analysis, with less repeated preprocessing.
Three simple steps
- 1
Step 1
Paste your text
- 2
Step 2
Adjust settings or load a saved preset
- 3
Step 3
Run the conversion and copy the result
Feature highlights
NFC plus character-set conversion
Starting from normalization, it converts letters, numbers, kana, symbols, and brackets in a controlled order to reduce visual checking work.
Apply team rules from replacement tables
Load tab-separated replacement tables as-is and reuse internal writing rules as templates.
Switch delimiters in one click
Convert CSV, TSV, PSV, or space-separated text quickly to match the next destination.
Highlight the differences
See what changed immediately so reviews and proofreading move faster.
Shortcuts and auto-conversion
Speed up repeated work with paste/copy shortcuts and automatic conversion options.
Export and import settings
Share JSON settings across projects or teammates when the same formatting rules are reused.
Theme and color switching
Switch between light and dark mode and change the theme color to match your working environment.
Strip HTML/XML tags
Remove unwanted tags before converting to plain text, cutting down on pre-submission cleanup.
Deduplicate and trim blank lines
Remove duplicate or empty lines to tidy lists, logs, and message drafts in one step.
Privacy-conscious design
All conversion runs in the browser without sending data externally. Settings are stored locally.
FAQ
Is my text sent anywhere?
No. Everything runs in the browser. Input text is not sent out, and settings stay in local storage.
How should I write replacement tables?
Write each line as `before
Can a team share the same settings?
Yes. You can export settings and share them as project-specific formatting rules.
Do I need to install anything?
No. It runs directly in the browser, so you can start formatting right away.
Stop doing text cleanup by hand.
Try mojihen! on one piece of text first.
You will feel the difference in editing speed right away.