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Best Open Source Code Editor Apps

217+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated June 2026

Out of 217+ open source code editor apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Open Source Code Editor

Textastic Code Editor#1

Textastic Code Editor by Alexander Blach

Text, Coding, SFTP Client, SSH
Editor's Choice
πŸ› οΈ Developer Tools
4.7😊(2.4K ratings)
FreeIn-App Purchases
#9in Developer Tools
Textastic Code Editor screenshot 1
Textastic Code Editor screenshot 2
Textastic Code Editor screenshot 3
Textastic Code Editor screenshot 4
Textastic Code Editor screenshot 5
Textastic Code Editor screenshot 6

A powerful text and code editor for mobile devices, offering syntax highlighting for over 80 languages, code completion, and formatting tools. It allows connection to various servers and cloud storage for seamless file management and editing.

What We Love

  • πŸš€ Highly performant
  • πŸ‘ Versatile and feature-rich
  • πŸ’‘ Excellent integration with other apps (e.g. Working Copy)
  • πŸ‘ Customizable and intuitive UI

Room to Improve

  • πŸ› Occasional crashes or freezes
  • πŸ”’ Restrictive paywall for basic functionality
  • πŸ‘Ž Confusing file management and upload/download workflow
iEditor – Text Code Editor#2

iEditor – Text Code Editor by ComcSoft Corporation

Best source code editor
Strong Contender
πŸ“Š Productivity
4.1😐(179 ratings)
FreeAds
iEditor – Text Code Editor screenshot 1
iEditor – Text Code Editor screenshot 2
iEditor – Text Code Editor screenshot 3
iEditor – Text Code Editor screenshot 4
iEditor – Text Code Editor screenshot 5
iEditor – Text Code Editor screenshot 6

A fast and simple text and source code editor for iPhone and iPad. It allows users to create, import, edit, and manage various file types with features like syntax highlighting, search/replace, and export options.

What We Love

  • πŸ‘ Simple and easy to use
  • πŸ’‘ Ability to convert text to PDF
  • πŸš€ Quick file opening and editing

Room to Improve

  • πŸ› Crashes and data loss issues
  • πŸ” Confusing UI and navigation
  • πŸ’° Aggressive upselling for paid version
Runestone Text Editor#3

Runestone Text Editor by Simon B. StΓΈvring

Edit plain text and code
Worth Considering
πŸ› οΈ Developer Tools
4.8😊(1.3K ratings)
FreeIn-App Purchases
#37in 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 plain text and code editor for iPhone and iPad. Offers syntax highlighting, line numbers, find and replace, and extensive customization options for developers and writers.

What We Love

  • πŸ’Ž Excellent text editor
  • πŸš€ Smooth and responsive
  • 🎨 Customizable themes and appearance
  • πŸ”’ Secure file storage and sync

Room to Improve

  • πŸ› Occasional crashes or bugs
  • πŸ” Difficulty navigating files/folders
  • πŸ“ Limited functionality without premium

More Open Source Code Editor apps to explore

4
Koder Code Editor
Koder Code Editor
Koder Code Editor
(S)FTP, Dropbox, Webdav, SSH
Free

A powerful code editor for mobile devices, offering syntax highlighting for over 80 languages, remote file access, and a built-in terminal. Perfect for developers who need to code on the go with a well-designed interface.

Syntax highlighting for 80+ languagesRemote file access (SFTP, Dropbox, WebDAV)Built-in SSH client
πŸ› οΈ Developer Tools
(9.3K)
paid
5
Python Editor App
Python Editor App
Python Editor App
Create and Run your Python 3
Free

Code and run Python 3 scripts directly on your iOS device with a feature-rich editor. Enjoy syntax highlighting, auto-indentation, code completion, and AI-powered code assistance. Optimize your workflow with multi-window support and background script execution.

Create, edit, and run Python 3 scriptsSyntax highlighting, auto-indentation, code completionAI-powered code assistant
πŸ› οΈ Developer Tools
(6.4K)
freemium
6
GitHub
GitHub
GitHub
Projects, ideas, & code to go
Free

Manage your code projects, review changes, and collaborate with your team on the go. This app allows you to stay updated with notifications, respond to issues, and browse files and code from anywhere.

Browse notificationsRead, react, and reply to Issues and Pull RequestsReview and merge Pull Requests
πŸ› οΈ Developer Tools
(34K)
free with in-app purchases
7
Text Editor.
Text Editor.
Text Editor.
A must have text editor
Free

A versatile text editor for managing files on your device and in the cloud. Supports various text formats, rich text editing, and custom fonts. Offers cloud integration and sharing capabilities.

Browse and edit cloud filesSupports TXT, RTF, HTML, CSS, JSRich text editing
πŸ› οΈ Developer Tools
(4.2K)
freemium
8
Text editor-PWEditor
Text editor-PWEditor
Text editor-PWEditor
For source code, HTML and text
Free

This app is a powerful text editor designed for source code, HTML, and general text input on iOS devices. It offers advanced editing features like syntax highlighting, symbol pads, and undo/redo, with cloud storage integration and an optional online compiler.

Syntax highlightingSymbol input and cursor padsUndo/Redo functionality
πŸ”§ Utilities
(113)
free with in-app purchases
9
Code Master - Source Code Editor
Code Master - Source Code Editor
Code Master - Source Code Editor
by Justin Bush
Free

This app offers a visual interface for creating and editing source code for any language, with preview and publishing options. It provides a professional way to manage and share your coding projects on iOS devices, supporting over 170 languages and offering various themes and templates.

Syntax highlighting for 170+ languages70+ syntax colored themesHTML5 templates and website builder
πŸ“Š Productivity
(55)
free
10
Visual Code
Visual Code
Visual Code
by StartApp LTD
Free

This app transforms your iPhone and iPad into a powerful coding environment. Write, debug, and run code for numerous languages with a sleek interface and integrated terminal. Enjoy a desktop-like IDE experience on the go, optimized for the latest iOS and iPadOS features.

Write, debug, and run codeMulti-language supportIntegrated terminal
πŸ”§ Utilities
(3.2K)
free with in-app purchases
11
Code Editor - Compiler & IDE
Code Editor - Compiler & IDE
Code Editor - Compiler & IDE
Programming on mobile
Free

This app is a powerful mobile code editor and compiler designed for programmers. It offers syntax highlighting for numerous languages, code assistance, and the ability to compile and run code directly on your device. Access files from cloud storage and version control systems, with customizable themes and extensive editing features.

Syntax highlighting for 110+ languagesOnline compiler for 30+ languagesCode assist and auto-completion
πŸ› οΈ Developer Tools
(38)
free with in-app purchases
12
Code Editor
Code Editor
Code Editor
Vusual Advanced Code Editing
Free

This mobile application offers a powerful and intuitive platform for on-the-go coding. It supports multiple programming languages with advanced features like code completion and syntax highlighting, along with customization options for a comfortable coding experience.

Multi-language support (Python, Java, JS, HTML, CSS)Intelligent code completionSyntax highlighting
πŸ› οΈ Developer Tools
(85)
subscription
13
HTML Creator : Editor & Viewer
HTML Creator : Editor & Viewer
HTML Creator : Editor & Viewer
Write & Preview HTML Instantly
Free

This app is a fast and lightweight HTML editor and viewer for iOS devices. It allows developers to write, edit, and preview HTML code in real-time with a built-in web view engine, offering a clean and focused development environment.

Live HTML previewSyntax highlighting code editorAuto indentation
πŸ› οΈ Developer Tools
(17)
free
14
Python Coding Editor & IDE App
Python Coding Editor & IDE App
Python Coding Editor & IDE App
Compiler - Run & Learn Py 3
Free

Learn and run Python 3 code on your mobile device with this AI-powered editor. Features include a compiler, debugger, code completion, and built-in challenges to enhance your programming skills.

Python 3 interpreter and compilerAI-powered code assistanceBuilt-in debugger
πŸ› οΈ Developer Tools
(2.2K)
free with in-app purchases
15
Edhita: Text Editor
Edhita: Text Editor
Edhita: Text Editor
Open source text editing app.
Free

This open-source application provides robust text editing capabilities for iOS devices. It allows users to manage files and directories, view content in a built-in browser, and download files via HTTPS. The app also offers convenient features like an accessory view for symbol input and markdown preview.

Directory and file managementBuilt-in file browserHTTPS file downloads
πŸ”§ Utilities
(22)
ad-supported
16
HTML Editor
HTML Editor
HTML Editor
by Intrepid Corporation LTD
Free

A lightweight HTML editor offering syntax highlighting, code completion, and a live preview. Easily open, edit, and export HTML documents from your device or iCloud. Features dynamic commenting and tag insertion for efficient web development.

Syntax highlightingCode completion suggestionsLive preview panel
πŸ› οΈ Developer Tools
(682)
free with in-app purchases
17
Code App
Code App
Code App
Desktop-class code editing
$6.99

This app offers a desktop-class code editing experience on iPadOS. It includes built-in runtimes for popular languages like Node.js, Python, and Java, along with advanced features such as autocompletion and Git integration.

Desktop-class code editorBuilt-in Node.js, Python, C, C++, PHP, Java runtimesAutocompletion and language features
πŸ› οΈ Developer Tools
(296)
free
18
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.

πŸ› οΈ Developer Tools
(3)
19
JDoodle: Code Compiler
JDoodle: Code Compiler
JDoodle: Code Compiler
Compile, Execute Code Anywhere
Free

This mobile IDE and compiler allows you to write, compile, and execute code for over 85 languages on your device. It features AI-powered debugging and code generation, making it a comprehensive tool for programmers on the go. Sync and save your projects with advanced privacy controls.

Compile and execute code for 85+ languagesAI Code Debug & Execute in Interactive ModeAI Code Generator
πŸ› οΈ Developer Tools
(86)
free
20
pythoni-run code,autocomplete
pythoni-run code,autocomplete
pythoni-run code,autocomplete
python3.13 Code Run Debug Libs
Free

This app is a Python 3.13 learning and development tool. It offers local execution, debugging, and access to PyPI libraries. Features include code completion, error reporting, Git integration, and file sharing.

Python 3.13 local executionBreakpoint debuggingPyPI library installation
πŸ› οΈ Developer Tools
(1.2K)
free with in-app purchases