# Duda vs SITE123 for website builders

Duda and SITE123 are closely matched for core workflows. Both support ai website builder, templates, responsive design, blogging, and ecommerce. Duda has confirmed free trial and API access. SITE123 has confirmed free plan. Starting price is $19 for Duda and $0 for SITE123.

## Key decision points

- SITE123 has confirmed free plan; free plan is not yet confirmed for Duda.
- Duda has confirmed free trial; free trial is not yet confirmed for SITE123.
- Starting price is $19 for Duda and $0 for SITE123.
- Duda supports API access; SITE123 is verified as not supporting it.

## Choose Duda if…

- Choose Duda if confirmed free trial matters to you; this detail is not yet confirmed for SITE123.
- Choose Duda if you need API access.

## Choose SITE123 if…

- Choose SITE123 if confirmed free plan matters to you; this detail is not yet confirmed for Duda.
- Choose SITE123 if the lower starting price is the deciding factor.

## Features

| Feature | Duda | SITE123 |
| --- | --- | --- |
| AI website builder | Yes (verified 5 September 2026; [source](https://www.duda.co/vibe)) | Yes (verified 5 September 2026; [source](https://www.site123.com/)) |
| Drag-and-drop editor | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Not confirmed |
| Templates | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/)) |
| Responsive design | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Custom code | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Not confirmed |
| CMS | Not confirmed | Yes (verified 5 September 2026; [source](https://www.site123.com/)) |
| Blogging | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Ecommerce | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Memberships | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Not confirmed |
| Booking | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| SEO tools | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Custom domains | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/pricing)) |
| Free domain | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Forms | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Analytics | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Client management | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/terms)) |
| White labelling | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Not confirmed |
| Site export | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Not confirmed |

## Capacity

| Feature | Duda | SITE123 |
| --- | --- | --- |
| Digital products | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Multilingual sites | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/features)) |
| Storage | -1 (verified 5 September 2026; [source](https://www.duda.co/pricing)) | 250 (verified 5 September 2026; [source](https://www.site123.com/pricing)) |
| Bandwidth | -1 (verified 5 September 2026; [source](https://www.duda.co/pricing)) | 250 (verified 5 September 2026; [source](https://www.site123.com/pricing)) |
| Team members | 3 (verified 5 September 2026; [source](https://www.duda.co/pricing)) | 1 (verified 5 September 2026; [source](https://www.site123.com/)) |

## Integrations

| Feature | Duda | SITE123 |
| --- | --- | --- |
| App marketplace | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/)) |

## Technical

| Feature | Duda | SITE123 |
| --- | --- | --- |
| API | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | No (verified 5 September 2026; [source](https://www.site123.com/terms)) |

## Pricing

| Feature | Duda | SITE123 |
| --- | --- | --- |
| Free plan | Not confirmed | Yes (verified 5 September 2026; [source](https://www.site123.com/pricing)) |
| Free trial | Yes (verified 5 September 2026; [source](https://www.duda.co/pricing)) | Not confirmed |
| Starting price | $19 (verified 5 September 2026; [source](https://www.duda.co/pricing)) | $0 (verified 5 September 2026; [source](https://www.site123.com/pricing)) |

## Commercial

| Feature | Duda | SITE123 |
| --- | --- | --- |
| Affiliate programme | Yes (verified 5 September 2026; [source](https://www.duda.co/features)) | Yes (verified 5 September 2026; [source](https://www.site123.com/)) |
| Affiliate commission | Not confirmed | CPA (Cost Per Acquisition) (verified 5 September 2026; [source](https://www.site123.com/terms)) |

## Evidence

- **Duda — AI website builder:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/vibe. Evidence: “Duda Vibe is an AI-powered workspace for building custom websites, web applications, business tools, and other digital experiences through conversation.”
- **SITE123 — AI website builder:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “AI App Builder”
- **Duda — Drag-and-drop editor:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Drag-and-Drop Editor Reduce development time with Duda’s easy-to-use and intuitive drag-and-drop editor.”
- **Duda — Templates:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Templates & Sections”
- **SITE123 — Templates:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “Pick from beautiful website templates”
- **Duda — Responsive design:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Fully Responsive Framework Your responsive website is based on the ZURB Foundation framework.”
- **SITE123 — Responsive design:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Responsive Web Design Give your users the best experience with perfect responsive design on desktops, smartphones and tablets.”
- **Duda — Custom code:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Developer Mode Access your responsive website’s HTML and CSS for increased flexibility and control.”
- **SITE123 — CMS:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “Create a free website with our content management system”
- **Duda — Blogging:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Blog”
- **SITE123 — Blogging:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Personal Blog Make a great looking personal blog easily with SITE123 blogging platform.”
- **Duda — Ecommerce:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Can I add eCommerce to a site? You can add a Store to an existing site in minutes or build a new eCommerce site with the help of dedicated templates.”
- **SITE123 — Ecommerce:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Sell Online Create an ecommerce website with SITE123 and make sure your business is always open.”
- **Duda — Digital products:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Your clients can sell anything ranging from physical products to digital products, services, tickets, gift vouchers, donations, and more.”
- **SITE123 — Digital products:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Sell Digital Products SITE123 clients can sell digital goods of all types via our online store builder.”
- **Duda — Memberships:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Membership Sites”
- **Duda — Booking:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Can I add Bookings to a site? Yes. You can add a booking widget to an existing site in seconds”
- **SITE123 — Booking:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Schedule Booking Let your clients book their appointments with you using the schedule booking tool.”
- **Duda — Multilingual sites:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Multi-Language Site”
- **SITE123 — Multilingual sites:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Multilingual Website Make multi-language websites in a few clicks.”
- **Duda — SEO tools:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “SEO Tools”
- **SITE123 — SEO tools:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “SEO Tools Use SEO tools to deliver a perfectly SEO optimized website.”
- **Duda — Custom domains:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Free domain for 1 year”
- **SITE123 — Custom domains:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/pricing. Evidence: “Connect Your Domain”
- **Duda — Free domain:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Free domain for 1 year”
- **SITE123 — Free domain:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Free Website Domain Establish your online identity with a free domain registration! SITE123 offers a free domain with a purchase of an annual package.”
- **Duda — Storage:** -1. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Storage & bandwidth Unlimited Unlimited Unlimited Unlimited Unlimited”
- **SITE123 — Storage:** 250. Last verified 5 September 2026. Source: https://www.site123.com/pricing. Evidence: “250 MB Storage”
- **Duda — Bandwidth:** -1. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Storage & bandwidth Unlimited Unlimited Unlimited Unlimited Unlimited”
- **SITE123 — Bandwidth:** 250. Last verified 5 September 2026. Source: https://www.site123.com/pricing. Evidence: “250 MB Bandwidth”
- **Duda — Forms:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Advanced forms Design and publish multi-step forms with conditional logic”
- **SITE123 — Forms:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Custom Form Builder Make fantastic custom forms on your website with an easy-to-use form builder tool.”
- **Duda — Analytics:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Stats & Analytics”
- **SITE123 — Analytics:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/features. Evidence: “Third-Party Plugins Implement website plugins such as live chat, analytic tools, and webmaster tools.”
- **Duda — App marketplace:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “App Store”
- **SITE123 — App marketplace:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “App Market”
- **Duda — Team members:** 3. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Team members 3 seats 6 seats 6 seats Custom”
- **SITE123 — Team members:** 1. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “How many websites can I register under my account? There is no limit - you may create a website or multiple websites under one account and manage them all with a single admin username.”
- **Duda — Client management:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “How many client accounts can I create per website? While Duda does limit the number of Team Members you can add to your account, there is no limit to the number of Client accounts you can create.”
- **SITE123 — Client management:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/terms. Evidence: “Expert: Designates an adept user who leverages the Provider's platform for designing websites for clients and enjoys benefits such as commissions, branding, and more.”
- **Duda — White labelling:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “What aspects of Duda’s platform can be white labeled? All of it.”
- **Duda — Site export:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Code export”
- **Duda — API:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Does Duda have an API? Duda offers one of the most robust website-building REST APIs in the industry”
- **SITE123 — API:** No. Last verified 5 September 2026. Source: https://www.site123.com/terms. Evidence: “Our system offers tools to users "as is" in their current state. We decide on tool inclusion; users can't request functionalities beyond the system's capabilities.”
- **SITE123 — Free plan:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/pricing. Evidence: “Free $ 0 /Month 250 MB Storage 250 MB Bandwidth Subdomain”
- **Duda — Free trial:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Try for free for 14 days. No credit card required.”
- **Duda — Starting price:** $19. Last verified 5 September 2026. Source: https://www.duda.co/pricing. Evidence: “Basic $25 /mo $19 /mo Billed annually”
- **SITE123 — Starting price:** $0. Last verified 5 September 2026. Source: https://www.site123.com/pricing. Evidence: “Free $ 0 /Month”
- **Duda — Affiliate programme:** Yes. Last verified 5 September 2026. Source: https://www.duda.co/features. Evidence: “Affiliate Program”
- **SITE123 — Affiliate programme:** Yes. Last verified 5 September 2026. Source: https://www.site123.com/. Evidence: “Affiliates”
- **SITE123 — Affiliate commission:** CPA (Cost Per Acquisition). Last verified 5 September 2026. Source: https://www.site123.com/terms. Evidence: “Affiliate: An entity or individual that promotes traffic to the Provider's platform, and in return, secures commissions premised on the successful onboarding of customers, typically calculated as CPA (Cost Per Acquisition).”