# Word Replacer for Safari — Replace and hide website text

> Safari extension to replace and hide website text with custom rules. (iPhone/iPad app by Yoshiko Sato.)

- Source: https://appshunter.io/ios/app/word-replacer-for-safari/id1611191823 (this page in markdown: same URL + `.md`)
- Developer: [Yoshiko Sato](https://appshunter.io/developer/1558203658)
- Category: Utilities, Productivity
- Price: $3.99 (on sale, was $4.99)
- Rating: 4.80/5 from 22 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: American English, Japanese
- Released: 2022-02-25
- Data updated: 2026-09-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/word-replacer-for-safari/id1611191823/reviews.md

## What is Word Replacer for Safari?

Replace words and phrases on websites with your own text rules in Safari. This Safari extension offers flexible matching options, rule ordering, and convenient tools for testing and backing up your settings.

Key Features:
• Create replacement rules with a source "Word" and target "Replacement".
• Use CS for case-sensitive matching and IN to match text inside larger words. For example, when the Word is her, turning IN off replaces only standalone her, while turning IN on also replaces her inside words such as other and there.
• Control priority with Rule Order (Top-Down or Bottom-Up) when multiple rules can match the same text.
• Set Default CS, Default IN, and Default RX so new rules start with your preferred options.
• Use Import / Export to back up your settings as JSON and restore them later.
• Preview how your current rules will transform text with the built-in Replacement Test.

Advanced Matching:
• Turn RX on if you want to use regular expressions in the Word field.
• Turn RX off to match symbols as plain text without escaping them.
• Example: to match [y/n], enter [y/n] with RX off, or \[y/n\] with RX on.

Notes:
• Works in Safari on websites where this extension is allowed.
• Spaces, punctuation, and surrounding characters affect how text is matched.
• Due to the wide variety of websites, compatibility with every site cannot be guaranteed.
• If needed, feel free to contact us before installing to check whether this extension works on a specific site.

For feature requests, questions, or bug reports, please visit our support page:
https://www.wide-apps.com

## Key features

- Create custom text replacement rules
- Case-sensitive and partial word matching
- Rule ordering for priority control
- Import/export settings for backup
- Test replacements before applying
- Supports regular expressions for advanced matching

## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/word-replacer-for-safari/id1611191823/reviews.md

### 1/5 — Not worth it..

*2026-02-22*

It changes different words or letters than it’s supposed to.. sadly not worth the money

**Developer response:** Thank you for your feedback.

We’re very sorry to hear that the extension did not work as you expected. That’s certainly not the experience we want anyone to have.

We have not received similar reports so far, but we would genuinely like to understand what happened in your case. If you could share a specific example, we would be happy to look into it and do our best to resolve the issue.

Please feel free to contact us through our support page with more details.

If you would prefer a refund, you can request one through the following Apple support page:
https://support.apple.com/en-us/HT204084

### 5/5 — Decent

*2026-02-07*

Works well.

### 5/5 — 期待通り

*2025-11-25*

期待した通りの動作をしてくれていますありがたい

### 5/5 — Plus is a button on the “extension menu”

*2025-10-12*

What an incredible extension! And I love that I can now fix the words that are incorrect on websites, but that “plus” button I went looking for it until I realised it’s the button that says “plus” on the extension menu. I wish it said “Add Word” instead! Nobody knows what plus means as a button!

**Developer response:** Hello! Thank you for your review — I’m so glad you like it.
And thank you for sharing your feedback as well. I’ll definitely consider incorporating it in the next update.

### 5/5 — i love it!

*2025-09-20*

this app has truly made my life so much easier and expanded my reading pool. thank you so much! :)

**Developer response:** Thanks so much for your review—so happy you like it!

### 5/5 — works super well!!

*2025-08-01*

I use it on ao3, works perfectly!

### 5/5 — Works again

*2025-07-27*

There were some issues, but they’ve been resolved and this extension works perfectly again :)

**Developer response:** Hello, thank you for reporting this issue. We have received similar reports from other users, and we believe this may be related to an iOS version compatibility issue. We recommend updating to the latest iOS version, as this may resolve the problem.
If the issue persists after updating, we would greatly appreciate it if you could share your iOS version and device name (for example, iPhone 15 Pro) via email or in a review so we can further investigate. Thank you for your patience.

### 1/5 — No longer works?

*2025-07-18*

I get prompted to press the plus button when I open the extension in safari. There is no plus button anywhere. Please fix this issue

**Developer response:** Hello, thank you for your feedback. We are currently investigating this issue as we have received several similar reports regarding the missing plus button. This appears to be related to iOS compatibility, and we recommend updating your iOS to the latest version as a first step.
If the problem continues after the update, we would be grateful if you could provide us with your iOS version and device model (such as iPhone 15 Pro) through email or by updating your review. We appreciate your understanding as we work to resolve this matter.

### 4/5 — No longer works

*2025-07-09*

This was a great app and did exactly what it was supposed to. However, I’m not sure if this has been neglected and forgotten because you can no longer do the only function of this extension, replace words. When you open the extension in Safari, it prompts you to press the plus button to add a word but there is no plus button leaving you unable to use the extension at all. Hope this gets fixed.

### 5/5 — 要望

*2025-05-28*

リーダー表示の時に、次のページの単語も変換するようにして欲しい。
例、小説家になろうでリーダー表示すると、1ページ目だけ変換されて2次のページからは変換されません。

**Developer response:** 貴重なレビューをありがとうございます。
ご要望いただいた件について検討・対応を試みましたが、技術的な制約により実現が困難な状況です。
1ページ目については、サイトのコンテンツに置換処理が適用された後にリーダー表示が読み込まれるため、置換が反映されています。しかし、2ページ目以降はリーダー表示が直接コンテンツを読み込むため、拡張機能による処理を適用することができません。
この制限はSafariのリーダー表示の仕組みに起因するもので、解決が難しい問題となっております。
もしアプリの機能がご期待に添えない場合は、購入から90日以内であればAppleによる返金対応が可能です。詳細については以下のAppleサポートページをご確認ください：
https://support.apple.com/ja-jp/118223

## Frequently asked questions about Word Replacer for Safari

### What does Word Replacer for Safari do?

This Safari extension allows you to create custom rules to replace or hide specific words and phrases on websites. You can define what text to find and what to replace it with, offering a personalized browsing experience.

### How do I create replacement rules?

You create rules by specifying a 'Word' (the text to find) and a 'Replacement' (the text to substitute). The extension offers options for case-sensitive matching, matching within larger words, and even supports regular expressions for advanced pattern matching.

### Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free user experience.

### What devices is Word Replacer for Safari compatible with?

This is a Safari extension, meaning it works within the Safari browser on devices where Safari is available and extensions are supported. Compatibility with every website cannot be guaranteed due to the diverse nature of web content.

### Can I back up my custom rules?

Yes, the extension provides Import/Export functionality. You can back up your settings as a JSON file, allowing you to restore them later or transfer them to another device.

## Version history (last 5 releases)

### 5.0.0 — 2026-03-17

Revamped UI and enhanced extension functionality.

### 4.0.1 — 2023-01-25

Fixed minor bugs.

### 4.0.0 — 2023-01-24

Several user-requested features have been added.
- Users can now choose whether to perform replacements from the top or bottom of a saved pair of replacements on the Settings screen.
- Users can now export/import data stored in local storage.
- Users can now drag and drop replacement pairs on the Settings screen to swap them. (MacOS only)

More features will be added in the future.

### 3.1.0 — 2022-09-04

Change keywords

### 3.0.0 — 2022-08-28

Additional information on usage added to the app.

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## More apps by Yoshiko Sato

- [Calculator for Matrix](https://appshunter.io/ios/app/calculator-for-matrix/id1558203656)
- [All URLs Opener for Safari](https://appshunter.io/ios/app/all-urls-opener-for-safari/id1615363610)
- [Copy URLs and Titles](https://appshunter.io/ios/app/copy-urls-and-titles/id1616300299)
- [Note By Site Pro](https://appshunter.io/ios/app/note-by-site-pro/id1617573556)
- [Note By Site for Safari](https://appshunter.io/ios/app/note-by-site-for-safari/id1617574196)

All apps by Yoshiko Sato: https://appshunter.io/developer/1558203658

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*