Open Source Mobile Operating Systems Text Editors

Text Editors for Mobile Operating Systems

Browse free open source Text Editors and projects for Mobile Operating Systems below. Use the toggles on the left to filter open source Text Editors by OS, license, language, programming language, and project status.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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  • 1
    QPrompt

    QPrompt

    Personal teleprompter software for all video makers.

    Free teleprompter software for all video creators. Built with ease of use, fast performance, control accuracy, and cross-platform support in mind. QPrompt works with studio teleprompters and tablet teleprompters, cellphones, and webcams. It was also designed for use in video conferences.
    Leader badge
    Downloads: 1,102 This Week
    Last Update:
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  • 2
    CKEditor 5

    CKEditor 5

    Powerful rich text editor framework with a modular architecture

    CKEditor 5 is a powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing. CKEditor 5 provides every type of WYSIWYG editing solution imaginable. From editors similar to Google Docs and Medium, to Slack or Twitter like applications, all is possible within a single editing framework. Builds are ready-to-use solutions to common editing needs. Every build can be customized to include a completely custom set of features. Features are flexible. You can write a custom feature once, and reuse it everywhere! CKEditor 5 is an ultra-modern JavaScript rich text editor with MVC architecture, custom data model and virtual DOM. It is written from scratch in ES6 and has excellent webpack support. Native integrations with Angular, React and Vue.js are available for your convenience. Building a mobile or cross-platform desktop application with JavaScript? CKEditor 5 is compatible with Electron and mobile devices (Android, iOS).
    Downloads: 30 This Week
    Last Update:
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  • 3
    Froala Editor

    Froala Editor

    The next generation Javascript WYSIWYG HTML Editor

    Froala Editor is a lightweight WYSIWYG HTML Editor written in Javascript that enables rich text editing capabilities for your applications. Froala WYSIWYG HTML Editor is one of the most powerful JavaScript rich text editors ever. Froala Rich Text Editor has a vast range of both simple and complex features for all kind of use cases. Lots of features don't have to overwhelm the user with hundreds of buttons. The Froala's WYSIWYG editor smart toolbar can accommodate over 100 features in this simple interface. The Froala Smart Toolbar groups all actions by scope into 4 categories. It's an intuitive toolbar where every feature is easy to find and your most used ones are there for you. A WYSIWYG HTML editor created by developers, for developers. With a powerful API and documentation you can get started in minutes.
    Downloads: 21 This Week
    Last Update:
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  • 4
    HarfBuzz

    HarfBuzz

    Open source text shaping engine

    HarfBuzz is an open source text-shaping engine with a C API that turns fonts and strings of character codes into a form that is correctly arranged for the corresponding language and writing system. This is essentially the process of text shaping: translating a string of character codes into a properly arranged sequence of glyphs that can be rendered onto a screen or into final output form for inclusion in a document. This shaping depends on a number of factors: the input string, the active font, the script (or writing system) of the string, and the string's language. Various font formats have their own set of standard text-shaping rules. With Harfbuzz, you can properly shape all the major writing systems. HarfBuzz is cross-platform and supports all major software platforms and font formats.
    Downloads: 14 This Week
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  • Photo and Video Editing APIs and SDKs Icon
    Photo and Video Editing APIs and SDKs

    Trusted by 150 million+ creators and businesses globally

    Unlock Picsart's full editing suite by embedding our Editor SDK directly into your platform. Offer your users the power of a full design suite without leaving your site.
    Learn More
  • 5
    Simplenote for Electron

    Simplenote for Electron

    Simplenote for Web, Windows, and Linux

    A Simplenote React client packaged in Electron. All your notes, synced on all your devices. Get Simplenote now for iOS, Android, Mac, Windows, Linux, or in your browser. Notes stay updated across all your devices, automatically and in real-time. There’s no “sync” button, It just works. Add tags to find notes quickly with instant searching. Share a to-do list, post some instructions, or publish your notes online. Notes are backed up with every change, so you can see what you noted last week or last month. Write, preview, and publish your notes in Markdown format. Apps, backups, syncing, sharing, it’s all completely free. Download Simplenote for any device and stay in sync, all the time, everywhere.
    Downloads: 9 This Week
    Last Update:
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  • 6
    Standard Notes App

    Standard Notes App

    Think fearlessly with end-to-end encrypted notes and files

    Standard Notes is a free, secure note-taking app with powerful end-to-end encryption, unparalleled privacy features, and seamless cross-platform syncing on unlimited devices. Standard Notes is a secure digital notes app that protects your notes and files with audited, industry-leading end-to-end encryption. Only you have access to the keys required to decrypt your data. Write and store all your notes and files in one secure place and seamlessly access them across all your devices. Note-taking services like Evernote, Google Keep, Notion, and Simplenote cannot prevent employees and governments from reading your data. Standard Notes features advanced security and privacy controls that protect your data against hacks, data breaches, government access, and even employee access.
    Downloads: 9 This Week
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  • 7
    Mozc

    Mozc

    Mozc - a Japanese Input Method Editor designed for multi-platform

    Mozc is an open source Japanese Input Method Editor (IME) developed by Google, designed to provide Japanese text input across multiple operating systems including Android, macOS, Windows, GNU/Linux, and Chromium OS. The project originated as a subset of Google Japanese Input, released publicly under the BSD 3-Clause license for community use and development. Mozc offers core IME functionality such as text conversion, prediction, and dictionary-based input, enabling users to efficiently type and edit Japanese text. While Mozc shares much of its codebase with Google’s internal IME, it operates as an independent open source project without official support, guarantees, or stable release cycles. Developers can build Mozc from source for their preferred platform, and the repository includes detailed build instructions for Android, Linux, macOS, and Windows environments.
    Downloads: 8 This Week
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  • 8
    Haptic

    Haptic

    Local-first, privacy-focused and open-source home for markdown notes

    Haptic is a new local-first & privacy-focused, open-source home for your markdown notes. It's minimal, lightweight, efficient and aims to have all you need and nothing you don't.
    Downloads: 7 This Week
    Last Update:
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  • 9
    Acode

    Acode

    A powerful text/code editor for Android

    Welcome to Acode Editor, a powerful and versatile code editing tool designed specifically for Android devices. Whether you're working on HTML, CSS, JavaScript, or other programming languages, Acode empowers you to code on-the-go with confidence. Step into the future of coding with our innovative plugin system. This all-new feature is compatible with a wide range of plugins, increasing Acode's functionality to meet all your development needs. With over 30 plugins already available in the plugin store, the possibilities are endless. Acode lets you build and run websites right in your browser, debug with ease using the built-in console, and edit a wide range of source files from Python and CSS to Java, JavaScript, Dart, and more.
    Downloads: 4 This Week
    Last Update:
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    Translate Shell

    Translate Shell

    Command-line translator using Google Translate, Bing Translator, etc.

    Translate Shell (formerly Google Translate CLI) is a command-line translator powered by Google Translate (default), Bing Translator, Yandex.Translate, and Apertium. It gives you easy access to one of these translation engines in your terminal. By default, translations with detailed explanations are shown. You can also translate the text briefly (only the most relevant translation will be shown). Translate Shell can also be used like an interactive shell; input the text to be translated line by line. Translate Shell is known to work on many POSIX-compliant systems. You may use Translate Shell from any Unix shell of your choice (bash, zsh, ksh, tcsh, fish, etc.); however, the wrapper script requires either bash or zsh installed. It is a must to have corresponding fonts for the language(s) / script(s) you wish to display in your terminal.
    Downloads: 4 This Week
    Last Update:
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  • 11
    PalmFiction is free document reader for the Palm OS.
    Downloads: 45 This Week
    Last Update:
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  • 12
    Runestone

    Runestone

    Performant plain text editor for iOS with syntax highlighting

    Performant plain text editor for iOS with syntax highlighting, line numbers, invisible characters and much more. Runestone uses GitHub's Tree-sitter to parse code to a syntax tree which is used for features that require an understanding of the code in the editor, for example syntax highlighting. Highlight ranges in the text view. Search the text using regular expressions. Automatically detects if a file is using spaces or tabs for indentation. Specify line endings (CR, LF, CRLF) to use when inserting a line break. Automatically detect line endings in a text. When judging the performance of Runestone, it is key to build your app in the release configuration. The optimizations applied by the compiler when using the release configuration becomes very apparent when opening large documents. The project should mostly work with Catalyst on the Mac, however, it isn't fully tested and the implementation isn't considered done. The focus is currently on the iPhone and iPad.
    Downloads: 3 This Week
    Last Update:
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  • 13
    VisualMathEditor

    VisualMathEditor

    LaTeX, AscciMath and MathML editor developed in Javascript and HTML

    Visual Math Editor New Version “ It now offers more than 730 LaTeX symbols and 210 AsciiMath symbols. It now works in all modern browsers without plugin. It now works with LaTeX, AsciiMath, MathML and HTML syntaxes. It improves the ergonomics of the user interface.” VisualMathEditor is a LaTeX, AsciiMath and MathML editor developed in Javascript and HTML. It operates independently on the web or locally. It has many features and menus that help the equation-entry and allow their posting and backup. Formulas : - math physics symbols - operation symbols - logical symbols - arrows symbols - relation symbols - bracket symbols - differential symbols - functions symbols - integral symbols - matrix symbols - sqrt & frac symbols - sub & sup symbols - sum & prod symbols - greek characters
    Leader badge
    Downloads: 43 This Week
    Last Update:
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  • 14
    KKTechGameMaster is a word editor and random name generator for role-playing aid to help Game Masters in the fulfillment of new adventures. The suite covers desktop and mobile applications with different languages (VB6, VB .NET, Java, J2ME).
    Downloads: 35 This Week
    Last Update:
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  • 15
    AutoFitTextView

    AutoFitTextView

    A TextView that automatically resizes text to fit perfectly

    A TextView that automatically resizes text to fit perfectly within its bounds.
    Downloads: 1 This Week
    Last Update:
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  • 16
    Draft.js

    Draft.js

    React framework for building text editors

    Draft.js is a framework for building rich text editors in React, powered by an immutable model and abstracting over cross-browser differences. Draft.js allows you to build any type of rich text input, whether you're only looking to support a few inline text styles or building a complex text editor for composing long-form articles. We provide the building blocks to enable the creation of a broad variety of rich text composition experiences, from basic text styles to embedded media. Draft.js fits seamlessly into React applications, abstracting away the details of rendering, selection, and input behavior with a familiar declarative API. The Draft.js model is built with immutable-js, offering an API with functional state updates and aggressively leveraging data persistence for scalable memory usage.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Seafile

    Seafile

    High performance file syncing and sharing

    Seafile is an open source file sync & share solution designed for high reliability, performance and productivity. Sync, share and collaborate across devices and teams. Build your team's knowledge base with Seafile's built-in Wiki feature. Organize files into libraries. A library can be selectively synced into any device. Reliable and efficient file syncing improves your productivity. Access files in the cloud in local S: drive without syncing them. Extends the local disk space with the massive storage capacity on the server. Files can be used offline too. Features built with enterprise environments in mind: AD/LDAP integration, group syncing, department hierarchy, fine-grained permission control. Edit Wiki documents in Markdown format, with built-in WYSIWYG Markdown editor. Knowledge management becomes very efficient with our full-text search, file tagging and review features. The core of Seafile server is written in C programming language. It is small and has a fantastic performance.
    Downloads: 1 This Week
    Last Update:
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  • 18
    DOCX Document Converter

    DOCX Document Converter

    Convert .docx to .md/.txt and .html. Free, unlimited, fast.

    A simple, free, unlimited, secure web-based tool that converts Microsoft Word documents (.docx) into Markdown (.md/.txt) and HTML files. Perfect for developers, writers, and anyone who needs to transform .docx MS Office Word documents into web-friendly or AI context friendly formats. Unlike those other jerks on the web that charge many dollars per month for this, I made it free, unlimited and open source. This is a better version of 'convert docx to txt' since .md files can be opened in notepad++ just the same AND they preserve formatting too! Meanwhile HTML files will even embed images allowing you to view them just like they were in the original document.
    Downloads: 8 This Week
    Last Update:
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  • 19
    General information, and a pack of tools for manipulating the Persian (Farsi) language and script, on different platforms and operating systems.
    Downloads: 6 This Week
    Last Update:
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  • 20
    Hview is very small tool for Symbian 6.1 phones: a plain text and binary file viewer. I'm using it for viewing my logfiles and sniffing in some binary stuff in the phone.
    Downloads: 6 This Week
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  • 21
    Markdown Editor With WYSIWYG Controls

    Markdown Editor With WYSIWYG Controls

    An Easy to use Browser Based MarkDown Editor With Live Preview Panel

    Browser Based, Cross Platform, Supporting all Operating Systems, Easy Application. No need to remember any markdown syntax anymore. Just Select Your Text and Click on any of the Buttons Above ( Except for some buttons ). See the Below Screenshot for Details. Notes: This editor has been tested fully on the Firefox Web Browser and is quite successful.
    Downloads: 4 This Week
    Last Update:
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  • 22
    Text Line Duplicate Remover

    Text Line Duplicate Remover

    Remove duplicate lines from your text

    This standalone offline web browser tool helps you remove duplicate lines from your text, with additional text processing options. Simply open it in your browser by double-clicking the html file. It also includes the source code too. I made this when I was working with long lists of entries and needed something to automatically clean them up. As a bonus you can also change the Sentence Case of the text, make it lowercase, UPPERCASE or Sentence case.
    Downloads: 4 This Week
    Last Update:
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  • 23
    kodeWeave

    kodeWeave

    HTML/CSS/JS and Markdown Playground For Web Designers and Developers

    kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices. (PhoneGap Build is recommended for mobile devices) kodeWeave similar to jsfiddle, jsbin, dabblet, liveweave, codepen, cssdeck, cssdesk, tinkerbin, d3 playground, plunker and pastebin, but allows you to export your web app as a desktop and/or chrome application.
    Downloads: 2 This Week
    Last Update:
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  • 24
    Lectures is app for students that will allow them to use their Palms to make conspects of their lectures. It is programmed using CodeWarrior 9.3 for Palm OS.
    Downloads: 3 This Week
    Last Update:
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  • 25
    This project is now hosted on https://mined.github.io and will be co-hosted here until further notice. Text editor with extensive Unicode and CJK support. Convenient and efficient features for editing of plain text documents, programs, HTML etc. User-friendly interface, mouse control and menus. Runs in a text-mode environment like xterm or mintty.
    Downloads: 3 This Week
    Last Update:
    See Project
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