App builders

Prompt-to-app products that generate, host and deploy a working application, usually front-end first, usually billed in credits.

Pick an app builder for a prototype or an internal tool, not for the codebase you will maintain for years.

AllOpen sourceMCPLocal modelsBYOKFree tier

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#	Agent	Type	Traits	Score	Panel	Adoption	Spread	Facts	Stars
1	D DyadDyad Free, local, open-source desktop AI app builder that runs on your own API keys or local models, with optional Pro credits	Web app builder	OSSMCPlocalBYOKfree tier	6.9	6.4	6.2	±2.8	10.0✓	22k
2	O OnlookOnlook Open-source visual-first AI code editor and prompt-to-app builder	Web app builder	OSSfree tier	6.7	7.0	—	±1.8	4.7	27k
3	B bolt.diystackblitz-labs community Open-source fork of Bolt.new that builds, runs and deploys full-stack web apps in the browser with any of 19 LLM providers	Web app builder	OSSMCPlocalBYOKfree tier	6.3	5.5	6.1	±3.8	10.0✓	20k
4	V v0Vercel Vercel's agent that builds full-stack Next.js apps from prompts, with GitHub sync, an MCP server and a Platform API	Web app builder	MCPfree tier	6.3	6.0	—	±4.5	8.3✓	—
5	L LovableLovable Hosted AI builder for full-stack web apps with built-in cloud backend, Git sync and an MCP server	Web app builder	MCPfree tier	6.1	5.8	6.8	±3.8	6.7✓	—
6	B Base44Wix (Base44) Wix-owned no-code app builder with built-in backend, auth, hosting and a hosted MCP server, billed in message credits	Web app builder	MCPfree tier	5.9	5.8	4.1	±3.3	8.3✓	—
7	R Replit AgentReplit Replit's cloud agent that plans, builds, tests and deploys apps from natural-language prompts	Web app builder	MCPfree tier	5.8	5.6	—	±4.0	6.7✓	—
8	C ClaudableAnymorph Open-source Lovable-style web app builder that drives your local Claude Code, Codex, Cursor or Qwen CLI instead of a hosted model	Web app builder	OSSMCPBYOKfree tier	5.6	6.4	3.8	±1.8	3.5	4.1k
9	C Cloudflare VibeSDKCloudflare Open-source app builder you deploy on Cloudflare, with an agent that plans, edits and previews	Web app builder	OSSBYOKfree tier	5.6	6.8	4.2	±1.3	1.2	5.4k
10	B BoltStackBlitz StackBlitz's browser-based AI app builder that runs and hosts full-stack web apps	Web app builder	MCPfree tier	5.5	4.9	5.8	±2.5	8.3✓	17k
11	E EmergentEmergent Credit-based vibe-coding platform that builds and deploys full-stack web and mobile apps with custom agents and MCP integrations	Web app builder	MCPfree tier	5.5	5.1	5.9	±2.0	6.7✓	—
12	M MonkeyCodeChaitin Open-source enterprise AI development platform where every coding task runs in a managed cloud environment, self-hosted or online	Web app builder	OSSBYOKfree tier	5.5	6.2	4.0	±1.5	3.5	4.8k
13	A Arkaingoorm Korean cloud IDE from goorm whose agent mode explores the repo, writes files and runs terminal commands in a Linux container	Web app builder	MCPfree tier	5.1	4.8	—	±2.5	6.7✓	—
14	D Doopkgoedecke A multiplayer design canvas where humans and AI agents design together, live, with a built-in MCP server and autonomous Doop Agent.	Web app builder	OSSMCPBYOKfree tier	4.9	5.7	1.3	±3.5	4.7	789
15	A AnythingAnything Prompt-to-app builder, formerly Create, that turns a description into a working site or tool	Web app builder	free tier	4.6	4.0	10.0	±2.3	2.3	—
16	H Hostinger AI BuilderHostinger Hostinger's prompt-to-app builder, formerly Horizons, bundled with hosting, domain and email	Web app builder		4.5	4.9	—	±3.5	2.3	—
17	S SoftgenSoftgen Labs AI web app builder that turns plain-English prompts into Next.js apps with Supabase, GitHub export and Vercel deploys	Web app builder		4.5	4.4	—	±2.0	5.0✓	—
18	M Magic PatternsNorth Park Labs AI design tool that turns prompts and screenshots into high-fidelity UI prototypes	Web app builder	free tier	4.4	4.8	—	±2.5	2.3	—
19	F Firebase StudioGooglediscontinued Google's browser-based agentic workspace, formerly Project IDX, being sunset on March 22, 2027 in favor of AI Studio and Antigravity	Web app builder	MCPfree tier	3.9	3.1	—	±1.5	8.3✓	—
20	R RorkRork, Inc. Chat-to-mobile-app builder that generates native Swift and Kotlin apps and publishes them to the stores	Web app builder	free tier	3.9	4.0	—	±2.0	3.3✓	—
21	G GitHub SparkGitHubdiscontinued GitHub's natural-language app builder for Copilot Pro+ subscribers, deprecated in August 2026	Web app builder		3.1	2.5	—	±1.3	6.7✓	—