UI/UX design tools

onlook tech stack

Open-source visual editor for React apps: designers edit the UI and the changes are written back to code.

onlook.com ↗github.com/onlook-dev/onlook ↗Checked Sep 2026

Foundation

“An excellent, super easy to use databse with so many great integrations – truly an awesome Open Source company!” — the maker, Sep 2026 ↗

In its code: @supabase/ssrsource · Sep 2026 ↗

PostgreSQL

In its code: pgpostgressource · Sep 2026 ↗

Database Access & ORMs

Drizzle ORM

In its code: drizzle-kitdrizzle-ormsource · Sep 2026 ↗

Frontend Framework

Next.js

In its code: @next/eslint-plugin-nextnextsource · Sep 2026 ↗

On its website: HTTP: onlook.com responds with x-nextjs-prerender; HTTP: www.onlook.com responds with x-nextjs-prerender source · Oct 2026 ↗

React

In its code: reactreact-domsource · Sep 2026 ↗

Transactional Email

Resend

In its code: resendsource · Sep 2026 ↗

On its website: DNS: resend._domainkey.onlook.com TXT (record present); DNS: send.onlook.com MX feedback-smtp.us-east-1.amazonses.com source · Oct 2026 ↗

Backend Framework

Fastify

In its code: @fastify/websocketfastifysource · Sep 2026 ↗

Money

Payments

Stripe

In its code: stripesource · Sep 2026 ↗

AI in the product

AI SDK & Agent Framework

AI SDK

“• TypeScript-first, ergonomic API with excellent Next.js integration; streaming and tool calling are rock solid. • Consistent abstractions across multiple model providers (great with OpenRouter) minimize vendor lock-in and churn. • Clear docs and examples redu…” — the maker, Sep 2026 ↗

In its code: @ai-sdk/provider-utils@ai-sdk/react@ai-sdk/ui-utilsaisource · Sep 2026 ↗

“• Best at following nuanced design/editing instructions; fewer retries when transforming real React/Tailwind code. • High context windows make full-repo understanding practical for Onlook’s AI edits. • Reliable tool use and harmlessness out of the box reduces…” — the maker, Sep 2026 ↗

OpenAI API

In its code: openaisource · Sep 2026 ↗

OpenRouter

In its code: @openrouter/ai-sdk-providersource · Sep 2026 ↗

Shipping

Image & Video Hosting

sharp

In its code: sharpsource · Sep 2026 ↗

Growth

Lifecycle Email

Loops

“Loops is so easy to setup and design – everything is intuitive, and it was really easy to get our first automation running. Also, you can tie opens to HubSpot. While the product is still relatively early, it has all of the features we need for an early-stage c…” — the maker, Sep 2026 ↗

Product Analytics