PyPI98Exceptionalhealth index
Python★ 66.5K↓ 3.2M/moSep 16, 2026
npm98Exceptionalhealth index

dream-num/univerUniver is a full-stack framework for creating and editing spreadsheets / word processor / presentation on both web and server.
TypeScript★ 14.2K↓ 1.1M/moAug 27, 2026
PyPI94Exceptionalhealth index
Python★ 184.7K↓ 14.9M/moSep 16, 2026
NuGet92Excellenthealth index
C#★ 4,613Oct 21, 2026
PyPI91Excellenthealth index

opendatalab/MinerUTransforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.
Python★ 80K↓ 141.6K/moSep 16, 2026
crates.io · npm · PyPI +189Excellenthealth index

yfedoseev/office_oxideThe fastest Office document library for Python, Rust, Go, JS/TS, C# and WASM. DOCX, XLSX, PPTX, DOC, XLS, PPT. Up to 100× faster than python-docx/openpyxl/python-pptx. 100% pass rate on valid Office files. MIT/Apache-2.0.
Rust★ 154↓ 286K/moOct 20, 2026
npm88Excellenthealth index

flyfish-dev/file-viewerBrowser-native Office / PDF / CAD / archive viewer for internal web apps, with Vue, React, Svelte, jQuery, Web Components, and no server-side conversion.
TypeScript · JavaScript★ 2,281↓ 85K/moSep 9, 2026
npm · PyPI · NuGet87Excellenthealth index

JSv4/DocxodusSwiss-army toolkit for .docx — faithful DOCX→HTML rendering, an in-browser block editor, Word-grade redlines with native tracked changes, and anchor-addressed markdown for LLM agents. .NET, WASM/TypeScript, Python, CLI.
C# · TypeScript★ 102↓ 28.9K/moOct 21, 2026
npm87Excellenthealth index

cherfia/chromiumlyA lightweight Typescript library that interacts with Gotenberg's different modules to convert a variety of document formats to PDF files.
TypeScript★ 171↓ 64.7K/moSep 15, 2026
NuGet · npm · PyPI86Excellenthealth index

EvotecIT/OfficeIMOMIT-licensed, COM-free .NET libraries for creating, reading, editing, converting, rendering, and extracting Office, PDF, email, OneNote, and text formats.
C#★ 544Sep 11, 2026
NuGet86Excellenthealth index

ShapeCrawler/ShapeCrawlerPowerPoint .NET library for reading, modifying, and generating PPTX presentations without Microsoft Office
C#★ 441Sep 10, 2026
npm86Excellenthealth index

harshankur/officeParserA robust, strictly-typed Node.js and Browser library for parsing office files into a rich Abstract Syntax Tree (AST) and generating high-fidelity output in multiple formats. Parses: docx · pptx · xlsx · odt · odp · ods · pdf · rtf · csv · md · html. Generates: Markdown · HTML · CSV · RTF · PDF · Plain Text · RAG Chunks
Rich Text Format · HTML★ 533↓ 2.9M/moAug 27, 2026
Maven84Excellenthealth index

DemchaAV/GraphComposeDeclarative Java engine for structured documents. Automatic layout, pagination, reusable templates and themes. Render print-ready PDF, export editable PowerPoint, or generate semantic DOCX.
Java★ 113Sep 19, 2026
PyPI · npm · Go +383Excellenthealth index

mini-software/MiniPdfLightweight Office-to-PDF libraries and command-line tools for Rust, .NET, Java, Python, JS, Python.
C#★ 493↓ 173/moSep 18, 2026
PyPI · npm83Excellenthealth index
TypeScript · Python★ 4,266Sep 19, 2026
npm83Excellenthealth index
TypeScript★ 243↓ 311.5K/moSep 21, 2026
Packagist81Excellenthealth index
PHP★ 397↓ 436.9K/moSep 13, 2026
npm81Excellenthealth index
TypeScript★ 11↓ 280K/moOct 20, 2026
npm · crates.io81Excellenthealth index
TypeScript · Rust★ 784↓ 106.1K/moSep 8, 2026

EvotecIT/PSWriteOfficeMIT-licensed PowerShell document automation for Word, Excel, PowerPoint, PDF, email, PST/OST, OneNote, Visio, OpenDocument, and mixed-format Reader workflows.
C# · PowerShell★ 161Sep 15, 2026
npm80Excellenthealth index

NomaDamas/slides-grabBest harness + editor + linter for generating slides in Claude Code / Codex - Claude Design Open Source Alternative
HTML · JavaScript★ 1,206↓ 2,080/moSep 9, 2026
Packagist78Goodhealth index
PHP★ 1,374↓ 184.1K/moSep 13, 2026

docMentis/docmentis-udoc-viewerUniversal document viewer for the web — open-source, framework-agnostic viewer powered by a built-from-scratch WebAssembly engine for high-fidelity rendering across PDF, DOCX, PPTX, and images.
TypeScript★ 91↓ 35.9K/moSep 10, 2026
Go · npm78Goodhealth index

officecli/officedexOfficeDex is the first Al-Native VibeOfficing platform for documents, slides, and spreadsheets
Go · JavaScript★ 1,069Sep 13, 2026
PyPI · crates.io77Goodhealth index
Python★ 59↓ 60.8K/moOct 8, 2026

ranuts/documentEdit DOCX/XLSX/PPTX in your browser — client-side, no server, works offline (OnlyOffice + WebAssembly)
TypeScript · HTML · JavaScript★ 1,947Sep 19, 2026
Packagist · Go · crates.io +275Goodhealth index
Rust · HTML★ 18↓ 2/moOct 20, 2026

open-xml-templating/docxtemplaterGenerate docx, pptx, and xlsx from templates (Word, Powerpoint and Excel documents), from Node.js or the browser. Demo: https://www.docxtemplater.com/demo. #docx #office #generator #templating #report #json #generate #generation #template #create #pptx #docx #xlsx #react #vuejs #angularjs #browser #typescript #image #html #table #chart
JavaScript★ 3,627↓ 3.8M/moSep 15, 2026
PyPI · crates.io · npm75Goodhealth index

openooxml/betterofficeNative OOXML engines in Rust - DOCX, XLSX & PPTX editing, rendering and real-time collaboration, compiled to WASM for the web.
Rust · TypeScript★ 230↓ 428/moSep 17, 2026
Python★ 6↓ 38.4K/moSep 17, 2026