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.

Visit github.com ↗Alternativestop 7% of May 2026

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

More dev tools this month

the category →

Dograh▲592
The open source VAPI alternative
Dev tools · 25d ago · dograh.com
Meridian▲530
Don't let your work go unnoticed. Get promoted!
Dev tools · 20d ago · meridiona.com
x1▲516
Lovable for iPhone apps go from idea to App Store
Dev tools · 11d ago · x1.new
The GTM Co-Founder▲402
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Open-Source eInk Bike Computer▲385
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com
Nuphos▲380
The AI-Native DevOps Workspace.
Dev tools · 24d ago · nuphos.ai

Launched alongside, May 2026

the whole month →

Brew ▲905
Like Claude design for email marketing
AI · May 2026 · brew.new
Kilo Code for VS Code▲897
Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai
StoreClaw▲805
Grow your store profits with agents that know how to sell
AI · May 2026 · storeclaw.ai
PollyReach▲796
Give your agent a real number and voice to make calls.
AI · May 2026 · pollyreach.ai
NW
Needle: We Distilled Gemini Tool Calling into a 26M Model▲776
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
FM
Files.md – Open-source alternative to Obsidian▲730
Dev tools · May 2026 · github.com