What is Symulate?
Frontend devs know the pain: You have a great UI idea, but you're blocked waiting for backend APIs. Symulate changes that. Define your API endpoints in TypeScript, and get instant AI-powered mock data that feels real. Build your entire UI, demo it to stakeholders, gather feedback, and iterate, all before writing a single line of backend code. Once the backend is ready, change one configuration to use it. No wasted code. Stop waiting. Start building.
Problem
Frontend developers are blocked waiting for backend APIs to be ready, causing delays in UI development and reliance on backend teams. Manually creating mock data is time-consuming and lacks realism, leading to inefficient iterations and misaligned stakeholder expectations.
Solution
A TypeScript-based API simulation tool where developers define endpoints and instantly receive AI-generated mock data. Users can build UIs, demo to stakeholders, and iterate without backend code (e.g., simulate user profiles with realistic names/emails).
Customers
Frontend developers, UI/UX designers, and agile teams prioritizing rapid prototyping and stakeholder collaboration.
Unique Features
AI-powered mock data generation mimicking real-world scenarios, seamless switch to live APIs via config change, TypeScript-native endpoint definitions, and no backend dependencies.
User Comments
Saves weeks of waiting for backend
Mock data feels production-ready
Simplified stakeholder reviews
Instant UI iteration
Eliminates manual data scripting
Traction
Launched in 2023, used by 10,000+ developers (self-reported), $50k estimated MRR, featured on ProductHunt with 500+ upvotes. Founder has 1.2k+ followers on X.
Market Size
The global API management market was valued at $4.5 billion in 2022 (Grand View Research), with frontend development tools seeing 30%+ YoY growth due to API-first trends.
