Open-source alternatives to Editor.js

Wagtail is an open-source content management system built on the Django web framework. It provides a structured, tree-based approach to content modeling, allowing developers to define custom page types and reusable content components that are managed through a highly customizable administrative interface. The platform distinguishes itself through its flexible, block-based content composition system, which enables editors to assemble complex page layouts dynamically. It also offers robust support for multi-site and multi-lingual environments, allowing organizations to manage distinct websites

wangEditor is a JavaScript-based web rich text editor and WYSIWYG interface used for composing formatted documents directly in a browser. It serves as a client-side editing component for web applications to handle document styling and content manipulation. The editor is built as a plugin-based engine, allowing new features and formatting capabilities to be added through a registration interface. It utilizes a schema-driven approach to validate HTML tags and attributes, ensuring clean and consistent document output. The project provides tooling for content management systems, frontend text in

TinyMCE is a JavaScript rich text editor and WYSIWYG HTML editor that provides a visual interface for creating and formatting content within web applications. It functions as an extensible editor framework and web content management UI, allowing users to author and style documents through a browser-based interface. The project is distinguished by a plugin-based extension system and a public API that enable the addition of custom capabilities and modifications to the visual interface. It utilizes a framework-agnostic core, providing dedicated integration for React, Vue, and Angular. The syste

CKEditor 5 is a modular rich text editor framework and JavaScript UI component used to build customizable visual editors. It serves as a system for generating HTML or Markdown content, providing both full rich-text editor components and restricted inline editor components for web applications. The framework includes a collaborative editing engine for real-time simultaneous editing, change tracking, and threaded commenting. It features an AI text assistant for polishing, rewriting, and generating content, as well as a document export engine that transforms rich text into PDF and Word files. T

Pandoc is a universal document converter that translates content between a wide range of markup and binary formats. It functions by parsing input documents into a unified intermediate abstract syntax tree, which serves as the foundation for consistent manipulation and transformation across diverse output types. The system is distinguished by its modular reader-writer pipeline, which decouples input parsing from output generation to allow for granular control over document structure. Users can programmatically manipulate this intermediate tree through a robust filter system, supporting both ex

GrapesJS is a modular, web-based visual editor framework designed for building drag-and-drop page builders and custom content management interfaces. It functions as a structural engine that manages hierarchical document models, allowing developers to create reusable design blocks and complex page compositions. By providing a schema-driven approach to UI configuration, the framework enables the construction of design environments where users can assemble layouts and manage component properties visually without writing raw code. The project distinguishes itself through a highly extensible, plug

Hexo is a command-line static site generator designed for content-driven blogging and website creation. It functions as a structured framework that transforms plain text files and markdown into production-ready static websites, utilizing a template-based rendering engine to separate site content from visual presentation. The project is distinguished by its event-driven build pipeline, which manages the entire site lifecycle through a series of hooks for file processing, asset generation, and deployment. Developers can extend the system’s core capabilities through a modular plugin architecture

Yoopta-Editor is a headless framework for building customizable block-based rich text editors. It utilizes a JSON-based document engine to manage editor state and provides a WYSIWYG interface for creating structured documents. The system separates core document logic from the visual layer, allowing for complete customization of the user interface. The framework is designed for real-time collaborative editing, featuring a synchronization engine with conflict resolution and remote cursor presence tracking. It offers a highly extensible plugin system that allows developers to define new content

Tiptap is a headless rich text editor framework and extensible WYSIWYG framework designed for building custom text editors. It functions as a high-level wrapper around the ProseMirror toolkit, separating core editing logic and state management from the user interface. The framework enables real-time collaborative editing through a synchronization system using conflict-free replicated data types. It also supports the integration of AI content generation to provide automated suggestions and content refinement directly within the editor. The system utilizes a plugin-based extension architecture

BlockNote is a block-based rich text editor and a real-time collaborative workspace. It uses a JSON-based data model to organize content into draggable, nestable blocks rather than a single flat document. The system functions as a high-level interface built on ProseMirror that abstracts document state into discrete, manipulatable content blocks. The project serves as a framework for integrating large language models into document editors, enabling context-aware text generation and AI-driven workflows. It also acts as a document export engine capable of converting structured block data into fo

Plate is a headless editor toolkit and framework designed for building custom rich text editing experiences. It provides a modular architecture that relies on a plugin-based system to manage document models, schema-driven node definitions, and state updates, allowing developers to assemble tailored content creation environments. The project distinguishes itself through a source-code injection pattern, where pre-built user interface templates and components are copied directly into the local project codebase. This approach ensures that developers maintain full control over the styling, markup,

TOML is a configuration file format designed for human readability and unambiguous mapping to hash tables. It serves as a standardized language for structured data, enabling consistent parsing and data exchange across diverse programming environments. The format distinguishes itself through a strict type-system specification that ensures data is interpreted identically regardless of the implementation. It utilizes a line-oriented lexical structure that supports both hierarchical organization through bracketed sections and compact inline embedding for nested objects. This approach allows for t

This project is a browser-based JavaScript library that transforms standard web elements into inline, WYSIWYG rich text editing areas. It functions as a programmatic wrapper around the native browser content-editable attribute, providing a structured interface for managing text input, media embedding, and document formatting directly within existing page layouts. The editor is distinguished by its contextual floating toolbar, which dynamically appears based on user text selection to provide relevant formatting options. It utilizes a plugin-based architecture that allows developers to inject c

Medium.js is a JavaScript rich text editor library and framework for building what-you-see-is-what-you-get editors. It acts as a lightweight wrapper for the browser contenteditable API, transforming standard elements into styled editors that support rich text formatting and semantic HTML output. The library functions as an HTML content sanitizer, stripping unwanted tags and attributes from typed or pasted content to maintain clean markup. It provides a system for implementing custom keyboard interactions and mapping shortcuts to trigger styling changes or element insertion. The framework cov

StackEdit is a browser-based Markdown editor designed for structured document authoring and collaborative content creation. It functions as an offline-first web application, allowing users to maintain full access to their documents and editing tools without an active internet connection, with changes automatically synchronized once connectivity is restored. The platform distinguishes itself through its support for real-time multi-user collaboration, utilizing operational transformation to merge concurrent edits from multiple participants. It features a modular architecture that supports speci

Pell is a JavaScript text editor library and browser-based rich text editor. It provides a lightweight WYSIWYG HTML editor for formatting styled text and outputting HTML directly within a web browser. The library is a dependency-free vanilla implementation that uses standard Web APIs. It allows for the definition of custom editor actions and text actions to extend the toolbar and the creation of custom visual themes to modify the editor appearance. The editor covers rich text editing and browser-based text formatting, including the application of bold, italic, headings, and lists. It also su

Trix is a rich text editor and WYSIWYG text component designed for composing and formatting documents with inline styling and block elements. It functions as an HTML content editor that manages and sanitizes input to ensure a secure and consistent document structure, while serving as a document state manager that tracks edit history and persists serialized state. The editor integrates directly with standard HTML forms, converting rich text into data for submission. It features a configurable sanitization engine that cleanses input HTML to remove unsupported tags and mitigate security risks.

Notepad++ is a high-performance, lightweight source code editor designed for local development on Windows. Built as a native desktop application, it utilizes a specialized editing component to manage text buffers and render syntax highlighting for large files with minimal resource overhead. The editor distinguishes itself through a robust plugin architecture that allows users to extend core functionality by loading external binary modules at runtime. It also provides extensive support for custom language definitions, enabling users to map unique syntax rules and keywords to the rendering engi

This project is a static analysis engine designed to identify patterns, enforce coding standards, and automate code quality improvements in software projects. By parsing source code into structured abstract syntax trees, it enables deep programmatic inspection and the automated remediation of identified programming issues. The engine functions as a pluggable linting framework, allowing developers to extend its core capabilities through a modular architecture. Users can inject custom rules, parsers, and processors to support non-standard file formats or domain-specific logic. This extensibilit

Vault is a centralized secrets management platform designed to secure, store, and control access to sensitive credentials such as API keys, passwords, certificates, and encryption keys. At its core, the system employs a barrier-based cryptographic sealing mechanism that requires an unseal process to decrypt internal storage, ensuring that sensitive data remains protected. It provides identity-based access control to manage granular permissions across distributed infrastructure, effectively centralizing security policies and authentication for both human and machine workloads. What distinguish

Rete is a framework for building interactive, node-based visual interfaces and dataflow programming environments. It provides a core engine that processes directed graphs, allowing developers to define modular logic where nodes represent operations and connections represent the flow of data or control. By decoupling the graph logic from the user interface, the framework enables the creation of custom visual editors that can be integrated into various frontend component libraries. The project distinguishes itself through a highly extensible, signal-driven architecture that supports complex req

Etherpad-lite is a web-based platform designed for real-time collaborative text editing. It enables multiple users to view and modify the same document simultaneously, utilizing an operational transformation engine to synchronize content across all connected client sessions. The platform distinguishes itself through a modular, plugin-based architecture that allows for the integration of third-party extensions to introduce custom functionality. It provides a comprehensive programmatic interface for document management, allowing users to automate the creation, update, and retrieval of text docu

This project is an enterprise knowledge platform designed for teams to create, manage, and publish structured documentation. Built on a high-performance runtime, it provides a centralized environment where contributors can author content using markdown, HTML, or a visual editor. The system is engineered to handle collaborative workflows, ensuring that technical and non-technical users alike can maintain documentation with consistent rendering and version control. What distinguishes this platform is its focus on secure, scalable, and synchronized content management. It features granular path-b

This project is a comprehensive documentation site framework and static site generator theme designed to transform markdown files into professional, responsive websites. It functions as a technical content platform that supports complex documentation projects, including multi-project management, blog workflows, and advanced content formatting. By processing source files through an extensible pipeline, it generates self-contained HTML sites that can be hosted on any web server without a database. What distinguishes this framework is its focus on developer experience and highly configurable bui

This project is a multi-format barcode library designed to encode and decode one-dimensional and two-dimensional barcodes across multiple programming languages. It functions as a cross-platform image processor that analyzes visual data to detect, locate, and extract information from patterns in diverse environments, while also providing a standard for mapping structured data into machine-readable formats. The library distinguishes itself through advanced image processing techniques that ensure reliability in real-world conditions. It employs pattern-matching detectors to identify geometric fi

Editable is a modular framework for building custom web-based rich text editors. It provides a structured environment for managing complex document content, including support for structured data like lists and grids, while maintaining an immutable tree representation to ensure predictable state manipulation. The framework distinguishes itself through a collaborative engine that synchronizes document state across multiple users in real-time using operational transformation. It also features a plugin-based architecture that allows developers to intercept rendering and node behavior, enabling th

ProseMirror is a rich text editor framework and collaborative editing engine designed for building semantic content editors. It provides a toolkit for creating text interfaces where document structure is governed by a declarative, schema-driven model. The framework enables the development of editors that treat text as structured data rather than simple HTML, ensuring that document content remains semantically consistent through a strict schema. This architecture supports real-time collaborative editing to synchronize document changes across multiple users.