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Best Syntax Highlighting Editor Apps

215+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated June 2026

Whether you're new to syntax highlighting editor or looking for an upgrade, our curated collection of 215+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Syntax Highlighting Editor

Koder Code Editor#1

Koder Code Editor by Reny Mustika

(S)FTP, Dropbox, Webdav, SSH
Editor's Choice
🛠️ Developer Tools
4.6😐(9.3K ratings)
Free
#25in Developer Tools
Koder Code Editor screenshot 1
Koder Code Editor screenshot 2
Koder Code Editor screenshot 3
Koder Code Editor screenshot 4

A versatile code editor for iPad and iPhone, offering syntax highlighting, code autocomplete, file management for Dropbox, (S)FTP, and webdav, an SSH client, and more. Code anytime, anywhere with features like tabbed editing, custom key snippets, and a built-in terminal. Ideal for developers on the go.

What We Love

  • 🚀 Great for coding on the go
  • 👍 Clean and intuitive UI
  • 🚀 Efficient file management
  • 🚀 Supports multiple file formats

Room to Improve

  • 🐛 Crashes and stability issues
  • 🐛 Bugs when switching between apps
  • 🐛 File corruption and data loss
Runestone Text Editor#2

Runestone Text Editor by Simon B. Støvring

Edit plain text and code
Strong Contender
🛠️ Developer Tools
4.8😊(1.3K ratings)
FreeIn-App Purchases
#36in Developer Tools
Runestone Text Editor screenshot 1
Runestone Text Editor screenshot 2
Runestone Text Editor screenshot 3
Runestone Text Editor screenshot 4
Runestone Text Editor screenshot 5
Runestone Text Editor screenshot 6

A powerful text editor optimized for iPhone and iPad, featuring syntax highlighting for various languages, line numbers, search and replace, and other core editing functions. With additional premium features like customizable app icons, line highlighting, and more, it's a lightweight yet versatile tool for editing code and plain text on-the-go.

What We Love

  • 💎 Excellent text editor
  • 🚀 Smooth and responsive
  • 🎨 Customizable themes and appearance
  • 🔒 Secure file storage and sync

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔍 Difficulty navigating files/folders
  • 📝 Limited functionality without premium
Python Editor App#3

Python Editor App by Andromeda Corp Limited

Create and Run your Python 3
Worth Considering
🛠️ Developer Tools
4.1😞(6.4K ratings)
FreeIn-App Purchases
#19in Developer Tools
Python Editor App screenshot 1
Python Editor App screenshot 2
Python Editor App screenshot 3
Python Editor App screenshot 4
Python Editor App screenshot 5

Create and run Python 3 scripts on your iOS device with this ultimate Python editor app. Enjoy a user-friendly interface, syntax highlighting, code completion, pre-built snippets, and seamless integration with iOS features - code on the go effortlessly!

What We Love

  • 💻 Great mobile Python IDE
  • 📚 Helpful built-in learning resources
  • 👍 Simple and easy to use

Room to Improve

  • 💰 Aggressive paywall/subscription model
  • 🔒 No free trial or limited functionality
  • 🙅‍♀️ Inability to close subscription popup

More Syntax Highlighting Editor apps to explore

4
Text Editor.
Text Editor.
Text Editor.
A must have text editor
Free

A powerful text editor for browsing and editing text on your device and cloud, supporting various file types and fonts, with features like rich text editing and dark mode. Subscribe for unlimited usage and dark mode access.

🛠️ Developer Tools
(4.2K)
5
Textastic Code Editor
Textastic Code Editor
Textastic Code Editor
Text, Coding, SFTP Client, SSH
Free
$9.99 | 100% OFF

"Access a versatile text and code editor for iOS with syntax highlighting for 80+ languages, SFTP/SSH connections, Git support, and more. Enhance your coding experience on-the-go with features like code completion, external keyboard support, and split view multitasking. Try it now for efficient programming on your iPad or iPhone."

🛠️ Developer Tools
(2.4K)
6
Code Editor - Compiler & IDE
Code Editor - Compiler & IDE
Code Editor - Compiler & IDE
Programming on mobile
Free

A powerful code editor and compiler app for coding on-the-go, offering syntax highlighting, error checking, and real-time compilation. Write, edit, and test code seamlessly with ease. Download now to streamline your coding experience!

🛠️ Developer Tools
(38)
7
Kodex
Kodex
Kodex
A powerful code editor
Free

A sophisticated code editor for iPad and iPhone, offering multi-caret editing, regex search and replace, syntax highlighting, multiple window support, and more. Integrated with the Files app for seamless file access and editing. Optimized for external keyboards, with additional virtual keyboard features planned for upcoming versions.

🛠️ Developer Tools
(202)
8
HTML Editor
HTML Editor
HTML Editor
by Intrepid Corporation LTD
Free

This application is a lightweight HTML editor with syntax highlighting, code completion, live preview, and iCloud support. It allows you to edit HTML documents, insert tags easily, and export and share your work. Give it a try for efficient HTML editing on the go!

🛠️ Developer Tools
(682)
9
Grammarly: AI Keyboard & Notes
Grammarly: AI Keyboard & Notes
Grammarly: AI Keyboard & Notes
Chats, emails, work and study
Free

An AI writing keyboard that provides instant feedback and assistance for improved writing on iPhone and iPad. Features include spelling, grammar suggestions, tone detection, generative AI rewrites, and a document editor. Upgrade to Premium for advanced writing suggestions. Improve your writing with Grammarly!

📊 Productivity
(216K)
10
iEditor – Text Code Editor
iEditor – Text Code Editor
iEditor – Text Code Editor
Best source code editor
Free

A top-rated text and source code editor for iPhone/iPad, offering Syntax Highlighting for various file types, Search/Replace, export options, file management, and compatibility with multiple file formats. Edit text and source codes with ease and efficiency. Check it out at http://www.comcsoft.com/Portfolio/our_apps/iEditor/iEditor_overview.php.

📊 Productivity
(179)
11
QuickCode: Code Editor
QuickCode: Code Editor
QuickCode: Code Editor
A Simple Code Editor
Free

This code editor app offers a comprehensive set of tools for users to code on the go, featuring syntax highlighting, customizable themes, and seamless integration with file management systems. With its intuitive interface and versatile functionality, it empowers users to bring their ideas to life, anytime and anywhere, and is available for download now.

🛠️ Developer Tools
(3)
12
Text editor-PWEditor
Text editor-PWEditor
Text editor-PWEditor
For source code, HTML and text
Free

A versatile text editor for source code and various text inputs, offering features such as syntax highlighting, line numbers, search and replace, file operations, and integration with multiple cloud storage services. Supports editing multiple files simultaneously, previewing HTML and Markdown files, changing fonts, FTP file operations, and more. Seamless updates available, making it a comprehensive tool for editing on iPhone and iPad.

🔧 Utilities
(113)
13
Neon Vision Editor
Neon Vision Editor
Neon Vision Editor
lightweight code editor
Free
🛠️ Developer Tools
(1)
14
Python Coding Editor & IDE App
Python Coding Editor & IDE App
Python Coding Editor & IDE App
Compiler - Run & Learn Py 3
Free

Compile and execute Python code on the go with this app. Write, test, and run Python scripts easily from your mobile device. Download now to streamline your coding experience!

🛠️ Developer Tools
(2.2K)
15
TextEditor : Rich Text Editor
TextEditor : Rich Text Editor
TextEditor : Rich Text Editor
Word Processor & Notes List
Free

A powerful and versatile word processor that allows users to create and edit rich text documents with ease. Experience a seamless writing experience with advanced formatting options and collaboration features. Try it now for enhanced document creation.

📊 Productivity
(2.8K)
16
TextEdit - Text Editor
TextEdit - Text Editor
TextEdit - Text Editor
TXT, RTF, Plain Text, LaTeX,MD
Free
$2.99 | 100% OFF

A sleek and fast text editor for iPad and iPhone that supports RTF, TXT, LaTeX, and MD formats. Edit your documents with ease on the go.

📊 Productivity
(362)
17
Swifty Compiler: Swift IDE
Swifty Compiler: Swift IDE
Swifty Compiler: Swift IDE
Code Editor & Playground
Free
$9.99 | 100% OFF

"Write and run Swift code easily with Swifty Compiler, a professional Swift IDE for testing and reviewing code. Enjoy free features like code snapshots and auto-indentation, or upgrade for premium features including syntax correction and AST. Try it out and support us with a review!"

🛠️ Developer Tools
(178)
18
Texifier : LaTeX editor
Texifier : LaTeX editor
Texifier : LaTeX editor
Write & typeset LaTeX on iOS
$29.99

Texifier is a LaTeX editor application that lets you easily write, edit, and format documents using LaTeX markup language. Create professional-looking documents with mathematical equations, symbols, and more. Start writing with Texifier today!

📊 Productivity
(683)
19
JavaScript Anywhere JSAnywhere
JavaScript Anywhere JSAnywhere
JavaScript Anywhere JSAnywhere
JS, HTML and CSS for everyone.
Free

A portable programming editor for web engineers and designers since 2010, allowing users to write JavaScript, HTML, and CSS code with features like preview, console log display, project imports, and Dropbox integration. Minimalistic and user-friendly, it offers various project templates for different needs. Happy coding!

🔧 Utilities
(435)
20
JavaScript Coding Editor IDE
JavaScript Coding Editor IDE
JavaScript Coding Editor IDE
Javascript Editor
Free

This JavaScript editor provides a streamlined and efficient coding experience with features like real-time syntax highlighting, customizable themes, advanced code completion, and a powerful debugger. Download it today to take your JavaScript coding to the next level with lightning-fast performance and intuitive tools.

🛠️ Developer Tools
(35)

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