LUI is an AI code editor designed to understand your codebase, anticipate your next move, and keep you in flow.
Download for macOS
app.tsx
export function App() {
return <Workspace
agent={“always-on”}
context={project}
/>
}
Tab
Predict your next edit with a model that has context on your whole project.
Agent
Delegate the work. LUI explores, plans, edits, and verifies—without losing the thread.
Background agents
Keep moving while your agent takes care of the work that would otherwise interrupt your day.
AGENT MODE
Describe the change, then watch LUI explore your project, make a plan, and complete the implementation—all while you stay in control.
› Add keyboard navigation to the command palette
✓ Read command-palette.tsx
✓ Found focus management pattern
● Implementing keyboard loop…
lui-fast
Instant inline edits and completions while you type.
lui-reason
Deeper planning for refactors that touch many files.
lui-review
Catch regressions and review diffs before you commit.
Built for entire engineering teams.
Bring your team’s conventions, codebase knowledge, and best practices into every edit.
10×
more context in every conversation.
DEVELOPER WORKFLOW
Use the command palette to reach the right action fast. LUI keeps your project, conventions, and recent decisions close by.
› Fix the failing keyboard tests
↳ Search workspace
↳ Read test failures
↳ Propose a focused patch
↳ Run test suite
Privacy mode
Use LUI with additional controls that keep your code out of model training.
Enterprise controls
Manage access, deploy trusted configurations, and bring LUI to every engineering team.
Traditional editor
You search through files, reconstruct context, and manually carry decisions between tasks.
LUI
LUI builds project context as you work, then uses it to act on the right files with the right intent.
“LUI gives the whole team a faster path from a fuzzy idea to a clean pull request.”
Priya N. — Staff Engineer
2.4×
faster issue-to-PR flow for teams using agent mode.
01
Install LUI and import your existing editor settings.
02
Open your project so LUI can index its structure.
03
Describe your first change and let the agent work.
Hobby
$0
Core editor, limited agent requests, and community support.
Includes core editor tools, unlimited local projects, and community support. Best for exploring LUI and personal prototypes.
MOST POPULAR
Pro
$20
Unlimited completions, full agent mode, and background agents.
Includes advanced agents, model choice, faster completions, and priority support. Best for shipping production work every week.
Team
$40
Shared project rules, admin controls, and priority support.
Includes shared workspaces, team permissions, centralized billing, and dedicated support. Best for growing product and engineering teams.
No credit card required for Hobby. Upgrade, downgrade, or cancel anytime.
Framer
Git Hub
N8N
Figma
Git
Jira
SHARED CONTEXT
Turn shared conventions into useful context. LUI remembers decisions, patterns, and project rules so every contributor can move with confidence.
Fast where it matters.
Native performance, low-latency models, and context retrieval that feels immediate.
< 200ms
typical edit-to-suggestion latency
Share workflows, project rules, and agent recipes with a community that ships every day.
140k+
developers in the LUI forum
2026.07 — Background agents can now open draft pull requests.
2026.06 — Faster project indexing for large monorepos.
2026.05 — Shared project rules for teams.
MARTIN R. · PRINCIPAL ENGINEER
Frequently asked questions
Can I use LUI with an existing codebase?
+
Does LUI work with teams?
+
How does LUI protect my code?
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Free for individual developers. Ready when you are.
Download for macOS
LUI