Lumo Docs & Sheets

AI-Powered Office Suite A rich text editor and spreadsheet with writing assistant, formula generation, image generation, and beautiful themes.

Powered by Lumo AI

What is Lumo Docs?

Lumo Docs is a free, browser-based rich text editor and AI-powered spreadsheet. Write smarter and crunch numbers faster with built-in AI assistance, 6 beautif
ul themes, and multi-language support.

Features

AI Writing Assistant

Fix grammar, rewrite text, translate to 9 languages, and transform your writing with 10+ smart tools — all powered by Lumo AI.

• Fix Text
• Rewrite
• Translate
• And 7 more tools

Auto-Fix While Typing

Toggle on auto-fix and watch your text improve in real-time. Detects complete sentences and fixes them automatically after a short pause.

Always watching, never interrupting.

AI Image Studio

Generate images from text, describe uploaded images with AI, or edit existing images with natural language instructions.

• Generate
• Describe
• Edit

Lumo Sheets

An AI-powered spreadsheet with formula generation, formula explanation, data analysis, and 6 matching themes. Built right alongside the editor.

• Formula Generator
• Formula Explainer
• Data Helper

6 Beautiful Themes

Switch between Light, Dark, Sepia, Ocean, Rose, and Mint themes. Every element adapts — editor, toolbar, modals, and code blocks.

Code Blocks

Embed clean, styled code blocks directly in your documents. Perfect for technical documentation and sharing code snippets.

const editor = new EditorJS('#root');

Full-Spectrum Formatting

Bold, italic, headings, lists, blockquotes, links, colors, alignment, superscript, subscript, and more. Everything a pro editor needs.

B I U ~~S~~ H1 H2

Supported Languages

The AI assistant understands and adapts to your language with native-level fluency:

Writing Styles

Choose a writing style and the AI will match it perfectly:

Quick Start

1. Open Lumo Docs or Lumo Sheets
2. Set your API key (get one at carlostkd.ch/api-tracker/keys.php)
3. Start writing or crunching numbers with AI assistance