# JavaScript Anywhere JSAnywhere — JS, HTML and CSS for everyone.

> Mobile programming editor for JavaScript, HTML, and CSS with preview. (iPhone/iPad app by Tatsuya Tobioka.)

- Source: https://appshunter.io/ios/app/javascript-anywhere-jsanywhere/id363452277 (this page in markdown: same URL + `.md`)
- Developer: [Tatsuya Tobioka](https://appshunter.io/developer/363452280)
- Category: Utilities, Productivity
- Price: Free
- Rating: 3.48/5 from 435 App Store ratings · 454 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 63 MB
- Languages: English, Japanese
- Released: 2010-03-26
- Data updated: 2026-09-06
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/javascript-anywhere-jsanywhere/id363452277/reviews.md

## What is JavaScript Anywhere JSAnywhere?

Programming editor in your pocket.

JavaScript Anywhere is one of the oldest development environments on iOS since 2010.
It's a simple and portable editing tool for web engineers and designers.

[Features]
- Write JavaScript, HTML, and CSS source code.
- Preview on the internal browser.
- Show console logs or errors.
- Import project / Download images from the web.
- Send e-mail / iTunes file sharing to export.
- Configure editor styles, and syntax highlighting.
- Simple server for Wi-Fi
- Export to / Import from Dropbox.
- Project templates (Basic/jQuery/React/Bootstrap/p5)

That's all. JSAnywhere is minimal forever.
Happy coding!

---------------

Featured in:
* The magazine "Mac People" in September 2013 issue.
* "Apps for Developers" on App Store collection by Apple in June 2015.

## Key features

- Write JavaScript, HTML, CSS
- Internal browser preview
- Console logs and errors
- Import/export via Dropbox
- Project templates
- Wi-Fi server

## What do users think of JavaScript Anywhere JSAnywhere?

Overall sentiment: positive

**Pros**

- 🚀 Constant use
- 🚀 Amazing app
- 🚀 Great for learning
- 🚀 Perfect for coding on the go
- 👍 Simple but effective
- 👍 Great for practicing code
- 👍 Helpful for students
- 👍 Wonderful code editor

**Cons**

- 🐛 Crashes
- 🐛 Bugs
- 🐛 Doesn't work
- 🐛 Issues with CSS and JavaScript
- 🐛 Compatibility problems
- 🐛 Ads distract from coding
- 🔒 Security concerns
- 🔋 High battery consumption

**Commonly reported bugs**

- Crashes when creating new projects
- CSS and JavaScript changes not reflected in output
- Incompatible with newer iOS versions
- Unexpected behavior with certain JavaScript features

**Most requested features**

- Add ability to save files
- Improve syntax highlighting
- Add line numbers
- Support for more file types (e.g. TypeScript, SCSS)
- Ability to create and manage multiple projects
- Integrate with cloud storage (e.g. iCloud, Google Drive)
- Add a JavaScript console for debugging
- Customize keyboard with common coding characters
- Implement a full-screen mode

## Recent user reviews (10 of 454)

All indexed reviews: https://appshunter.io/ios/app/javascript-anywhere-jsanywhere/id363452277/reviews.md

### 5/5 — Great app!

*2026-08-23, version 4.8.0*

Very informative, a go to for Java script !!

### 5/5 — this is cool

*2026-08-17, version 4.8.0*

da cool

### 5/5 — Great app!!!

*2026-07-19, version 4.8.0*

Wow. It’s great for anything u need with JS, HTML and CSS!

### 5/5 — Sermon on the lamp

*2026-07-01, version 4.8.0*

Jimmy thanks for the hello send beast best for eye came heavy dutied shot shear for ear share ifs rang ring around world hello! Sorry boot my mistakes to syntux air ore knot peace on plan of we’s

### 5/5 — Clonagem

*2026-03-29, version 4.8.0*

10

### 4/5 — 画像の順番がめちゃくちゃになる…

*2026-02-23, version 4.8.0*

・ゴチャゴチャしてないシンプルな操作性が良い。
・日本語対応なので使い方を知るために英語解読せずに済む
・コードも色分けされて見やすい。メソッドとか変数名を自動で予測候補に出してくれる機能はさすがになかった。
・HTML, CSS, jsが最初からセットになっている。１つのフォルダにHTMLやCSSやJSを複数入れたりHTML同士をお互いにリンクし合えたらさらに良いと思う。(追記：リンクは<a href="../タイトル/index.html">でいけますね)
・画像をインポートすると一番上や一番下じゃなく、中途半端な変な所に追加されるのをなんとかして欲しい。並び順が新しい順でも古い順でも名前順でもないよく分からない順番になっているので、枚数が多いとめちゃくちゃ探しづらい。ここだけは本当に修正していただきたいです。

### 4/5 — 大体良い

*2026-02-12, version 4.8.0*

ほぼパソコンと同じことができ、尚且つ課金を瀬ばんでこないので心地良い。
しかしJSなどに名前をつけられないのと、一つのHTMLから追加のページを作れないのが欠点。

### 5/5 — Reliable and stable

*2026-01-24, version 4.8.0*

Works always. Efficient and handy.

### 5/5 — Love it

*2025-12-20, version 4.7.10*

I use this app constantly.

### 5/5 — Amazing app

*2025-10-28, version 4.7.10*

Five star rating

## Frequently asked questions about JavaScript Anywhere JSAnywhere

### What can I do with JavaScript Anywhere?

JavaScript Anywhere allows you to write and edit JavaScript, HTML, and CSS source code directly on your mobile device. You can preview your web pages in an internal browser, view console logs and errors, and manage your projects through various import and export options.

### What are the key features of this app?

Key features include the ability to write and preview code, view console logs, import/export projects via Dropbox, utilize project templates for popular frameworks like React and Bootstrap, and configure editor styles with syntax highlighting. It also offers a simple server for Wi-Fi sharing.

### Is JavaScript Anywhere free to use?

The application is free to use and is supported by advertisements. While the core functionality is available without charge, users should be aware of the presence of ads within the app.

### What devices is JavaScript Anywhere compatible with?

This application is designed for iOS devices, as indicated by its history as one of the oldest development environments on iOS since 2010. Specific iOS version compatibility would typically be detailed in the app store listing.

### Who is the target audience for this app?

This app is intended for web engineers and designers who require a simple and portable editing tool for web development tasks on the go. It's ideal for those who need to quickly write, test, and manage code snippets or small projects.

## Version history (last 5 releases)

### 4.8.0 — 2026-01-18

Fixed minor bugs.

### 4.7.10 — 2023-12-06

# Fixed

- Minor issues with ad

### 4.7.9 — 2023-06-11

# Fixed

- App sometimes crashes on launch

### 4.7.8 — 2023-05-30

# Fixed

- Minor bugs

### 4.7.7 — 2022-12-26

# Fixed

- Minor style issues
- An unexpected IP address is used in the server function

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## More apps by Tatsuya Tobioka

- [Edhita: Text Editor](https://appshunter.io/ios/app/edhita-text-editor/id398896655)
- [Remaining - Little time left](https://appshunter.io/ios/app/remaining-little-time-left/id1069193793)
- [Gradientor](https://appshunter.io/ios/app/gradientor/id1231849905)
- [ABFlow - A-B repeat player](https://appshunter.io/ios/app/abflow-a-b-repeat-player/id1451678772)
- [KeyFolder2 - Filelist with PIN](https://appshunter.io/ios/app/keyfolder2-filelist-with-pin/id1594374317)

All apps by Tatsuya Tobioka: https://appshunter.io/developer/363452280

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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 2026-09-06.*