Open-source .docx editor library for building document apps
We are working on an open-source .docx editor library for apps that need to edit Word documents in the browser. We just shipped 1.0. A lot of existing approaches convert .docx into HTML and lose document semantics along the way. Our editor parses OOXML directly and uses its own rendering+layout engine to produce paged documents with html/css. Edits round-trip back to .docx, so you’re always editing the document, not its representation. The core rendering engine is framework agnostic, with React and Vue ui adapters on top. It’s Apache 2.0. Happy to answer questions.
Open-source .docx editor library for building document apps launched on May 21, 2026 with 107 votes, #285 of 20,538 launches that month and more than 95% of that year's launches.
In plain words
An open-source library for editing Word documents (.docx files) directly in web browsers. It parses OOXML format and renders documents with its own layout engine rather than converting to HTML, preserving document structure and formatting. Changes save back to the original .docx format. The framework-agnostic core includes adapters for React and Vue. Released under Apache 2.0 license, it's built for developers integrating document editing into web applications.
written from the facts on this page · September 2026
From the sources
Open-source WYSIWYG .docx editor library for React and Vue with canonical OOXML, tracked changes, and real-time collaboration. Agent-ready. - eigenpal/docx-editor
Does a similar job
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DOM-docx – HTML to native, editable Word docs (MIT)Jul 2026 · github.com · ▲158Convert semantic HTML fragments to native, editable Word documents (OOXML) - floodtide/dom-docx
JavaScript-first, open-source WYSIWYG DOCX editorFeb 2026 · github.com · ▲130We needed a JS-first WYSIWYG DOCX editor and couldn't find a solid OSS option, most were either commercial or abandoned. As an experiment, we gave Claude Code the OOXML spec, a concrete editor architecture, and a Playwright-based test suite. The agent iterated in a (Ralph) loop over a few nights and produced a working editor from scratch. Core text editing works today. Tables and images are functional but still incomplete. MIT licensed.
- WIWord in Web – Near MS Word Parity Docx Editor in WebJul 2026 · word-in-web.com · ▲37
Word in web is a pure JS docx editor/renderer benched against MS Word directly. This was largely inspired by Eigenpal going closed source, and some personal frustrations I had with working on complex Word templates, pleading papers, etc... and not having a clean way to view/edit them without owning MS Word (which I did just eventually buy but it sucked). This was also an exercise in highlighting the value of good evals for Agents to bench against. Instead of just throwing the OOXML standard at an agent and letting it spin, I put together a large corpus of Microsoft Word docs -…
ORY Editor – A rich editor for the browser, built with React and Redux2017 · github.com · ▲369Next-gen, highly customizable content editor for the browser - based on React and written in TypeScript. WYSIWYG on steroids. - react-page/react-page
Extend UI – open-source UI kit for modern document appsJun 2026 · extend.ai · ▲252We're open-sourcing 14 components & examples today for PDF, DOCX, and XLSX viewers, plus bounding box citations, file upload, e-signature, and more. It's MIT licensed and fully customizable. Demo video here: https://share.extend.ai/kRmSGKRF When we started, we tried every file viewer and document component library we could find. Unfortunately, none of them had all the functionality (and polish) that we wanted, so we ended up building our own for https://extend.ai/. It was only ever meant to be internal, but enough customers kept asking for it that we decided to…

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