Open Source Text Editors

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.

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.

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.

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.

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

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.

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.

General information, and a pack of tools for manipulating the Persian (Farsi) language and script, on different platforms and operating systems.

Boostnote is an open source note-taking app for programmers. Apps available for Mac, Windows, Linux, Android and iOS. Built with Electron, React + Redux, Webpack and CSSModules.

bibelot.pl is a Perl script that formats and converts text documents into compressed PalmDoc .pdb files, suitable for reading on a Palm or Handspring device with any standard PalmDoc reader (AportisDoc, CSpotRun, RichReader, TealDoc, etc.)

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.

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.

AppCompat v21 makes it easy to use Material Design EditText in our apps, but it's so limited. If you've tried that, you know what I mean. So I wrote MaterialEditText, the EditText in Material Design, with more features that Google Material Design Spec has introduced. Base color will be used as bottom line color, text color (reset alpha to 87%) and hint text color (reset alpha to 26%). You can use app:met_baseColor in xml or setBaseColor() in java code. If you haven't set a base color, black will be used. Primary color will be used as the activated bottom line color, highlight floating label color, and singleline ellipsis color. You can use app:met_primaryColor in xml or setPrimaryColor() in java code. If you haven't set a primary color, the base color will be used. Just use com.rengwuxian.materialedittext.MaterialEditText instead of EditText in your layout xml. MaterialEditText has directly inherited EditText, so you don't have to change your java code.

NotePuppy is a minimalist text editor with file management capabilities. First developed for the Nokia N900, I wanted an editor that looked good and was slick and easy to use. It is so useful as a desktop editor that it is one of my main work tools.

A simple, easy to use text editor available for a multitude of platforms.

Free Java Office suite on the Web.

Line command cleaner/converter files.