# The 3 best AI app and website builders (2026)

> Source: https://agentsindex.ai/categories/app-and-website-builders

Updated 7 November 2026 2 prices checked 24–28 October 2026 1 tool added in November Reviewed by Team AgentsIndex

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[How we check](https://agentsindex.ai/methodology)

3 tools

- [Lovable](https://agentsindex.ai/lovable) · Prompt-driven builder for full-stack web apps, with hosting, a built-in backend and real code you can export. · Free Checked 24 Oct · Freemium · [Visit](https://agentsindex.ai/go/lovable)
  - MCP server
  - API
  - Open source
  - Self-host
- [v0](https://agentsindex.ai/v0-dev) · Turn prompts, templates, and code into deployable web apps. · Free Checked 2 Nov · Freemium · [Visit](https://agentsindex.ai/go/v0-dev)
  - MCP server
  - API
  - Open source
  - Self-host
- [Greta.sh](https://agentsindex.ai/greta-sh) · Prompt-built full-stack apps and sites that keep publishing approved SEO pages after launch. · Free, then $20 a month Checked 28 Oct · SOC 2 · [Visit](https://agentsindex.ai/go/greta-sh)
  - MCP server
  - API
  - Open source
  - Self-host
- Know when AI app and website builders change their prices · Price cuts, new plans and the AI tools we’ve just added.

Describe an app or a website and get it built, without writing code.

## What the 3 offer

Yes In part No or not listed

Each cell is one tool

- [Free to start](https://agentsindex.ai/categories/app-and-website-builders?filter=free#list) **3** of 3
- [MCP server](https://agentsindex.ai/categories/app-and-website-builders?filter=mcp-server#list) **1** of 3 1 in part
- [API](https://agentsindex.ai/categories/app-and-website-builders?filter=api#list) **1** of 3 1 in part
- [Open source](https://agentsindex.ai/categories/app-and-website-builders?filter=open-source#list) **0** of 3 1 in part
- [Self-host](https://agentsindex.ai/categories/app-and-website-builders?filter=self-host#list) **0** of 3 1 in part

## November in AI app and website builders

- Added in November: **1** new tool
- Last checked: **2 Nov** oldest check 24 Oct

AI app and website builders compared

Tool Starting price MCP server API Open source Self-host

[Lovable](https://agentsindex.ai/lovable)`+MCP ~API ~OPEN ~SELF`

Free

- Yes: yes

- Partly: partly

- Partly: partly

- Partly: partly

[v0](https://agentsindex.ai/v0-dev)`?MCP +API?OPEN?SELF`

Free

- Not stated: not stated

- Yes: yes

- Not stated: not stated

- Not stated: not stated

[Greta.sh](https://agentsindex.ai/greta-sh)`~MCP?API?OPEN?SELF`

Free, then $20 a month

- Partly: partly

- Not stated: not stated

- Not stated: not stated

- Not stated: not stated

**agentsindex.ai** · All 3 AI app and website builders we list.

[How we check](https://agentsindex.ai/methodology)

All 3 tools here have a free plan, against 50% across the index. None is open source, against 23% across the index.

## About AI app and website builders

### Can you use AI app and website builders for free?

3 of the 3 have a free plan. One of the 3 publishes a monthly price: $20. The other 2 publish no monthly price.

### Are there any open-source AI app and website builders?

None of the 3 listed here is open source. One more is partly open source: Lovable.

### Which AI app and website builders have an MCP server?

1 of the 3 has an MCP server: Lovable. One more has one in part: Greta.sh.

## Sources and method

Tools rank higher the more we can confirm: a public price, an API and docs, sources, stated limits. [How we check](https://agentsindex.ai/methodology)

Prices are taken from each vendor's pricing page.

- [Greta.sh](https://agentsindex.ai/greta-sh): [greta.sh/pricing](https://www.greta.sh/pricing), checked 28 October 2026
- [Lovable](https://agentsindex.ai/lovable): [lovable.dev/pricing](https://lovable.dev/pricing), checked 24 October 2026