Runestone Text Editor
Simon B. Støvring Developer Tools iPhoneiPadiPod touch
Runestone Text Editor is a free Developer Tools app for iPhone and iPad by Simon B. Støvring. Rated 4.7/5 from 2,101 ratings. Requires iOS 15.0.
- Rating
- 4.7
- 2.1K ratings
- Price
- Free
- on the App Store
- Size
- 64 MB
- Age 4+
- Updated
- Sep 10
- 2026 · v1.6.2
Screenshots
About Runestone Text Editor
A plain text editor with syntax highlighting, line numbers, search and replace, page guide, and much more. It's like TextEdit but more powerful and optimised for iPhone and iPad. Runestone is made by a single person with a love for text editors and a vision of building the most lightweight text editor for iPhone and iPad that still has the core features for editing code. Features: - Syntax highlighting of many languages including HTML, JavaScript, JSON, Markdown, Swift, Python, PHP, YAML, and many more. - Select one of the twelve standard themes including popular themes like Tomorrow, Dracula, Solarized, and One Dark Pro. - Innovative find and replace for searching and modifying text while still viewing your file. - Choose font and font size, including support for custom fonts imported using another third-party app. - Show the line and column the cursor is located on. - Uses the standard document browser for an experience similar to the Files app. - Quickly navigate to a specific line. - Automatically close opening brackets and quotes. - Multiple windows on the iPad. - Format code using Prettier.js. Supported languages include CSS,HTML, JavaScript, JSON, PHP and more. - Choose text encoding between popular encodings like UTF-8, UTF-16, ISO Latin 1, and many more. - Enable or disable autocorrection, autocapitalization, and smart punctuation. - Set default file extension of new files. - Open files in Runestone from the Share Sheet. - Print documents. Premium features: - Choose between eight app icons. - Show line numbers. - Highlight the selected line. - Increase line height and letter spacing. - Disable line wrapping to allow horizontal scrolling. - Show tabs, spaces, and line breaks using a selected symbol. - Enable page guide at a specific column to easily tell when lines are getting too long. - Add vertical and horizontal overscroll. - Remember the selected language per file. - Save file extensions and filenames that should always be treated as plain text files. - Enable soft tabs and choose the width of the tab character. - Specify whether pressing the tab key should insert a tab or indent the line. - Adjust the scaling of Markdown headings and disable highlighting of code blocks in Markdown. Runestone was built on the open-source framework with the same name. Find more information on the Runestone framework at github.com/simonbs/runestone
Ratings & reviews
4.7
2.1K ratings
What’s new
Version 1.6.2 · Updated September 10, 2026
Brings small optimizations for iOS 27.
App privacy
The developer, Simon B. Støvring, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Runestone Text Editor
Looking for apps like Runestone Text Editor? Here are 6 similar apps on the App Store. The highest rated is Textastic Code Editor (4.7/5), and all 6 are free to download.
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Textastic Code Editor
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Kodex
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a-Shell
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Runestone Text Editor | 4.7 / 5 (2,101 ratings) | Free | September 10, 2026 | |
| Textastic Code Editor | 4.7 / 5 (2,568) | Free | Oct 21, 2026 | Compare |
| Kodex | 4.2 / 5 (208) | Free | Apr 1, 2024 | Compare |
| Pyto IDE | 3.7 / 5 (1,001) | Free | Jun 9, 2024 | Compare |
| a-Shell | 4.6 / 5 (565) | Free | Oct 24, 2026 | Compare |
| Web Inspector | 3.9 / 5 (160) | Free | Aug 29, 2026 | Compare |
| Code Editor - Compiler & IDE | 3.1 / 5 (44) | Free | Feb 13, 2026 | Compare |