Lex

Lex is an AI word processor with a minimal editor, real-time collaboration and AI tools that give feedback, rewrite text and suggest titles.

Lex is a word processor for writers that pairs a minimal, focused interface with AI editing tools. Writers can ask the AI for feedback on a draft, brainstorm ideas, rewrite passages, find the best word or generate title ideas with one click, while commands provide quick AI shortcuts. Documents support comments with keyboard navigation, version history for trying alternatives, live collaboration by sharing a link, and read-only links for publishing. Lex Pro adds access to larger models from OpenAI and Anthropic, early features and the iOS app. Lex says it is used by more than 300,000 writers.

Lex at a glance

Best for: Writer
Runs on: Web, iOS
Pricing: Free plan; Lex Pro subscription for premium models
Released: October 2022
Category: AI writing tool
Website: lex.page

Key features

Minimal, distraction-free editor
AI feedback, brainstorming and rewriting
One-click title ideas and AI commands
Live collaboration through a shared link
Comments and version history
Read-only publishing links

Use it for

Get feedback on an essay or newsletter draft
Co-edit a document with a colleague
Rewrite a paragraph in a clearer way

Alternatives to Lex

Rewrite — Free with no account, no word limit, and works completely offline.
Sudowrite — It analyzes your style and tone to suggest the next 300 words in your voice.
Type — Deeply integrated AI assistant and editor built specifically for long-form creative writing.
Jetwriter — Integrates directly into your browser to draft emails in your personal writing style.
HyperWrite — Writing help in any text box via its Chrome extension
Compose AI — Cuts typing time by forty percent and accelerates document and email creation.
Spell — Write documents with an AI editor designed for long-form content.
Quillbot — It uses artificial intelligence to rewrite and paraphrase text.
DeepL — Delivers accurate, enterprise-grade translations while preserving original layout and context.
TypeKey — It works inside other apps through a custom keyboard or directly within the app.
Proof — Track who wrote each line and collaborate directly with AI agents.
AI Novel Writing Assistant — It manages the entire long-form writing process from a single sentence idea to final chapters.

All Lex alternatives