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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

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    Houzz Pro is the #1 business management software for home construction and design professionals.

    Get the all-in-one tool for marketing, project and client management built specifically for remodeling and design professionals.

    Get an all-in-one solution that spans the full customer lifecycle, including marketing, CRM, estimation & proposal building, project management, a 3D Floor Plan builder, an online invoicing and payment portal, as well as a client portal and collaboration tools. Start a free trial today to see why thousands of Pros run their business on Houzz Pro. Plans available for all business sizes.
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  • 1
    OmegaT - multiplatform CAT tool

    OmegaT - multiplatform CAT tool

    The free computer aided translation (CAT) tool for professionals

    OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
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    Downloads: 1,794 This Week
    Last Update:
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  • 2
    MarkText

    MarkText

    A simple and elegant markdown editor

    MarkText is an MIT licensed open source project, and the latest version will always be downloadable for free from the GitHub release page. MarkText is still in development, and its development is inseparable from all sponsors. Realtime preview (WYSIWYG) and a clean and simple interface to get a distraction-free writing experience. Support CommonMark Spec, GitHub Flavored Markdown Spec and selective support Pandoc markdown. Markdown extensions such as math expressions (KaTeX), front matter and emojis. Support paragraphs and inline style shortcuts to improve your writing efficiency. Output HTML and PDF files. Various themes: Cadmium Light, Material Dark etc. Various editing modes: Source Code mode, Typewriter mode, Focus mode. Paste images directly from clipboard.
    Downloads: 273 This Week
    Last Update:
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  • 3
    VSCodium

    VSCodium

    binary releases of VS Code without MS branding/telemetry/licensing

    Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking. The VSCodium project exists so that you don’t have to download+build from source. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. These binaries are licensed under the MIT license. Telemetry is disabled. If you want to build from source yourself, head over to Microsoft’s vscode repo and follow their instructions. VSCodium exists to make it easier to get the latest version of MIT-licensed VSCode. Please note that some Visual Studio Code extensions have licenses that restrict their use to the official Visual Studio Code builds and therefore do not work with VSCodium.
    Downloads: 213 This Week
    Last Update:
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  • 4
    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.
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    Downloads: 989 This Week
    Last Update:
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  • Your go-to FinOps platform Icon
    Your go-to FinOps platform

    Analyze, optimize, and govern your multi-cloud environment effortlessly with AI Agentic FinOps.

    Unlike reporting-only FinOps tools, FinOpsly unifies cloud (AWS, Azure, GCP), data (Snowflake, Databricks, BigQuery), and AI costs into a single system of action — enabling teams to plan spend before it happens, automate optimization safely, and prove value in weeks, not quarters.
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  • 5
    Swagger Editor

    Swagger Editor

    An editor designed for Swagger

    Swagger Editor lets you edit Swagger API specifications in YAML inside your browser and to preview documentations in real time. Valid Swagger JSON descriptions can then be generated and used with the full Swagger tooling (code generation, documentation, etc). swagger-editor is a traditional npm module intended for use in single-page applications that are capable of resolving dependencies (via Webpack, Browserify, etc). swagger-editor-dist is a dependency-free module that includes everything you need to serve Swagger Editor in a server-side project, or a web project that can't resolve npm module dependencies. If you're building a single-page application, using swagger-editor is strongly recommended, since swagger-editor-dist is significantly larger.
    Downloads: 64 This Week
    Last Update:
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  • 6
    Imaginary Teleprompter

    Imaginary Teleprompter

    Free teleprompter software

    Free teleprompter software. Built with web technologies so its easy to customize. Features include: mirroring, dual-screen support, rich text editing, image support, custom styles, and auto-save.
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    Downloads: 347 This Week
    Last Update:
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  • 7
    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: 39 This Week
    Last Update:
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  • 8
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
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    Downloads: 194 This Week
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  • 9
    Arabic Keyboard

    Arabic Keyboard

    Arabic Keyboard Phonetic

    Can't Remember the Position of Arabic Letters on your Keyboard? Try This Phonetic Arabic Keyboard Layout. Letters correspond to Latin / English / German Letters of similar pronunciation, which makes it much faster and easier to type. Example: the Arabic Letter Meem "م" can be typed by pressing "M". They Layout can be either used online on arab-key.com or installed as a System Language for macOS and Windows. Includes Arabic, Persian, Kurdish Letters. All Features Free
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    Downloads: 179 This Week
    Last Update:
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  • The all-in-one Omnichannel Experience Management Platform Icon
    The all-in-one Omnichannel Experience Management Platform

    Do more than just Surveys.

    Build conversational surveys of any type, for any purpose, in any language. Get 40% more responses.
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  • 10
    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: 29 This Week
    Last Update:
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  • 11
    SVGEdit

    SVGEdit

    Powerful SVG-Editor for your browser

    SVG-edit is a fast, web-based, JavaScript-driven SVG drawing editor that works in any modern browser. SVGEdit is the most popular open source SVG editor. It was started more than 10 years ago by a fantastic team of developers. Unfortunately, the product was not maintained for a quite long period. We decided to give this tool a new life by refreshing many aspects. Please let us know with an issue or a discussions if you wish to contribute. V7 is changing significantly the way to integrate and customize SVG-Edit. You can have a look to index.html to see how you can insert a div element into your HTML code and inject the editor into the div. The "svgcanvas" that takes care of the underlying svg edition. It can be used to build your own editor. See example in the demos folder or the svg-edit-react repository.
    Downloads: 23 This Week
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  • 12
    Tesseract.js

    Tesseract.js

    A pure Javascript Multilingual OCR

    Tesseract.js is a pure Javascript port of the popular Tesseract OCR engine. Tesseract.js' library supports more than 100 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract.js can run either in a browser and on a server with NodeJS. Tesseract.js is a javascript library that gets words in almost any spoken language out of images. The main Tesseract.js functions (ex. recognize, detect) take an image parameter, which should be something that is like an image. What's considered "image-like" differs depending on whether it is being run from the browser or through NodeJS.
    Downloads: 21 This Week
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  • 13
    Markdown Viewer

    Markdown Viewer

    Markdown Viewer / Browser Extension

    Markdown Viewer and Browser Extension.
    Downloads: 20 This Week
    Last Update:
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  • 14
    Quill

    Quill

    Your powerful rich text editor

    Quill is a powerful, free and open source WYSIWYG editor made for the modern web. Equipped with modern architecture and an expressive API, it’s highly compatible, extensible and customizable to fit any need. With granular access to editor content, changes and events, and consistent solid performance with JSON as both input and output, developers will find working with Quill a wonderful experience. Quill works with all modern browsers on desktops, tablets and phones, and delivers a consistent behavior and HTML across all platforms. It’s being used in numerous projects already, from small to large Fortune 500 ones. See how well Quill can fit into your own project!
    Downloads: 18 This Week
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  • 15
    CodeMirror

    CodeMirror

    A versatile in-browser code editor

    CodeMirror is a versatile in-browser code editor implemented in JavaScript. Made specifically for editing code, it comes with more than a hundred language modes and numerous addons for more advanced code editing functionality. CodeMirror comes with several useful features, including autocompletion, code folding, configurable key bindings, Linter integration and many more. It supports the standard desktop versions of the following browsers: Firefox, Chrome, Safari, Opera and Internet Explorer/ Edge. If you would like to customize CodeMirror to better suit your application and add new functionality, there's a rich programming API and a CSS theming system available for you.
    Downloads: 12 This Week
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  • 16
    Summernote

    Summernote

    Super simple WYSIWYG editor

    Simply download and attach your js, css with bootstrap. Customize by Initializing various options and modules. Summernote is licensed under MIT and maintained by the community. Integrate it with any back-end. 3rd parties available in django, rails, angular. Bootstrap uses certain HTML elements and CSS properties which require HTML5 doctype. Summernote uses the Open Source libraries jQuery and Bootstrap, if you are using the Boostrap 3 or 4 versions of Summernote, or just jQuery if you use the Lite version of Summernote. Summernote allows you to customize the toolbar. You can compose a toolbar with pre-shipped buttons. Air-mode give an interface without the Toolbar. To reveal popover Toolbar, select a text where you want to modify. Simply turn on airMode and just focus on text. Styles change according to Bootstraps Theme. The editor uses the Bootswatch Themes based on Bootstrap 3, you can also do the same with Bootstrap 4.
    Downloads: 12 This Week
    Last Update:
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  • 17
    Pootle, Virtaal & Translate Toolkit

    Pootle, Virtaal & Translate Toolkit

    Localization tools built by localizers for localizers

    Tools for localization: - Pootle: web based translation management system. - Virtaal: Computer Aided Translation (CAT) tool. - Translate Toolkit: QA, format conversion and support (PO, Java .properties, OpenOffice, Mozilla, XLIFF, TMX, TBX, CSV, Qt .ts).
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    Downloads: 80 This Week
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  • 18
    MDX

    MDX

    Markdown for the component era

    MDX lets you use JSX in your markdown content. You can import components, such as interactive charts or alerts, and embed them within your content. This makes writing long-form content with components a blast.
    Downloads: 10 This Week
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  • 19
    StackEdit

    StackEdit

    In-browser Markdown editor

    Unrivalled writing experience. StackEdit’s Markdown syntax highlighting is unique. The refined text formatting of the editor helps you visualize the final rendering of your files. StackEdit provides very handy formatting buttons and shortcuts, thanks to PageDown, the WYSIWYG-style Markdown editor used by Stack Overflow. Whether you write, you review, you comment… StackEdit's layout provides you with the flexibility you need, without sacrifice. StackEdit’s Scroll Sync feature accurately binds the scrollbars of the editor panel and the preview panel to ensure that you always keep an eye on the output while writing. StackEdit can sync your files with Google Drive, Dropbox and GitHub. It can also publish them as blog posts to Blogger, WordPress and Zendesk. You can choose whether to upload in Markdown format, HTML, or to format the output using the Handlebars template engine.
    Downloads: 10 This Week
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  • 20
    The Homebrewery

    The Homebrewery

    Create authentic looking D&D homebrews using only markdown

    The Homebrewery is a tool for making authentic-looking D&D content using Markdown. It is distributed under the terms of the MIT License.
    Downloads: 10 This Week
    Last Update:
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  • 21
    Notepadqq

    Notepadqq

    A simple, general-purpose editor for Linux

    Notepadqq is designed by developers, for developers. With its more than 100 supported languages, it is the ideal text editor for your daily tasks. Your code should be the protagonist: that's why we designed Notepadqq to put focus on the content, without unnecessary fancyness. As developers, we know how it's important to be quick and agile. These are what we believe to be the most important things for any tool that will be used multiple times a day. Notepadqq gives you a hand with multiple selections, regular expression searches, and real-time highlighting. Code is meant to be read. Notepadqq is the first text editor to offer first-class support for displaying mathematical formulas so that you can express your ideas more clearly than ever. Start a comment in your favorite programming language, then start writing in LaTeX notation to augment your comment with beautifully typeset mathematics.
    Downloads: 9 This Week
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  • 22
    VisualSubSync is a subtitle program using audio waveform representation as its cornerstone. SRT and SSA/ASS subtitle formats are supported. It also provides some tools to help improving the quality of your subtitle.
    Downloads: 34 This Week
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  • 23
    Markdown PDF

    Markdown PDF

    Markdown converter for Visual Studio Code

    This extension converts Markdown files to PDF, HTML, PNG or JPEG files.
    Downloads: 6 This Week
    Last Update:
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  • 24
    Nextcloud Text

    Nextcloud Text

    Collaborative document editing using Markdown

    Nextcloud Text is a collaborative document editor that lets you work, share and collaborate with friends and colleagues on documents. Though it is available in Nextcloud 16 and 17, anybody can access Text whether they’re using Nextcloud or not. Nextcloud Text files are saved as Markdown, so they can be edited from any other text app. Nextcloud Text is lightweight and distraction-free, giving you only the formatting that you need so you can focus on writing.
    Downloads: 6 This Week
    Last Update:
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  • 25
    FCKeditor

    FCKeditor

    FCKeditor (retired)

    FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com
    Downloads: 25 This Week
    Last Update:
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