

⚡ 簡単な評価:
- 価格: CodeDesign AI has a free plan at $0, while B12 starts at $42/month for its basic plan.
- 最適な用途: CodeDesign AI suits freelancers and a small 仕事 owner wanting code export. B12 suits professional service providers.
- 主な違い: CodeDesign AI exports HTML code. B12 bundles scheduling, invoicing, and email marketing into one platform.
- 私たちのおすすめ: CodeDesign AI for most users, thanks to its free plan and full control over your website’s design.

Both CodeDesign AI and B12 promise a website built by artificial intelligence.
しかし、それらはそれぞれ異なる問題を解決する。
CodeDesign AI is an ai powered website ビルダー with code export.
B12 is an all in one platform for service based businesses.
This guide breaks down both tools to help you get your business online.
概要
This Codedesign AI vs B12 comparison covers pricing, features, and the website building process.
また、それぞれのウェブサイト構築ツールがどのようなユーザーに最適なのかも詳しく解説します。
情報源としては、公開されている仕様書、ドキュメント、G2のレビューなどが挙げられます。
By the end, you will know which tool fits your next website.
CodeDesign AIとは何ですか?
CodeDesign AI is an ai website builder made for people with no coding knowledge.
You describe your idea in plain 文章, and the ai website generator builds it.
It can create complex websites from a simple prompt in seconds.
The drag and drop interface then lets you handle further customization.
This lowers the barrier to entry for non-developers and speeds up web development.

🏆 Winner: CodeDesign AI
An ai powered website builder that turns a text prompt into a professional looking website. It also lets you export websites as clean HTML code.
CodeDesign AI の価格
Here is what CodeDesign AI costs in 2026. Let us break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料プラン | $0 | テスト AIツール and personal projects |
| 月額プラン | 価格についてはお問い合わせください | Advanced features and a custom domain |
| 生涯契約 | 価格についてはお問い合わせください | One-time payment with full control |
価格は2026年2月に確定しました。
無料トライアル: Yes. The free plan lets you test the builder with no credit card required.
返金保証: CodeDesign AIは、生涯サブスクリプションプランに対して返金保証を提供しています。
📌 注記: The entry level plan is free, but a custom domain and code export sit behind the paid monthly plans.
⚠️ 警告: Monthly and lifetime prices are not public. You must contact the support team for a quote before you commit.
CodeDesign AIの主な利点
CodeDesign AIを検討する価値がある理由は以下のとおりです。

- AIマジック: The ai magic copywriting feature writes SEO-friendly marketing copy. It works in over 100 languages.
- コードのエクスポート: You can export your website as clean HTML code. This gives tech savvy users full control.
- Built In SEO Tools: The built in seo tools help your site rank in search engine results out of the box.
- AI Design Regenerations: Ask for ai design regenerations until the ai generated designs match your brand identity.
- 直接出版: The platform supports direct publishing to your own domain or its own hosting.
- Smart Components: Reusable smart components and a template builder speed up the design process.

私たちのチームが気づいたこと
私たちの 作家 signed up for CodeDesign AI and spent several days on the platform. Here is what stood out during the initial setup:

CodeDesign AIの長所と短所
✅ メリット
- Free plan lets beginners build a complete site at no cost
- Code export gives full control over your HTML code
- AI Magic writes marketing copy in over 100 languages
- Built in seo tools help your site reach search engine results
❌ デメリット
- Monthly and lifetime pricing is not listed publicly
- The free plan offers only basic customer support
- Complex websites still need a learning curve to refine
B12とは何ですか?
B12 AI is an ai powered website builder made for professional service providers.
Its ai technology generates a personalized website draft in just 60 seconds.
The draft is tailored to your industry, so it fits your business needs fast.
B12 then adds tools to help you serve clients online.
These include online scheduling, invoicing, and email marketing in one place.

準優勝:B12 AI
An all in one website builder for service based businesses. It bundles scheduling, invoicing, and a support team of design and copywriting experts.
B12の価格
Here is what a B12 website costs in 2026.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 基本 | 月額42ドル | Solo professionals starting a business website |
| プロ | 月額169ドル | より多くの機能を必要とする成長中のチーム |
| 高度な | 月額339ドル | Busy firms with heavy client demand |
価格は2026年2月に確定しました。

無料トライアル: Yes. You can build a free ai website draft before you pick a paid plan.
返金保証: B12 offers a full refund if you cancel within a short period of your purchase.
📌 注記: Every paid plan includes free hosting, a custom domain, and ongoing support from the B12 team.
⚠️ 警告: The jump from Basic to Professional is steep. Check which features you truly need before you upgrade.
ビタミンB12の主な利点
ビタミンB12を検討する価値がある理由は以下のとおりです。

- AIウェブサイトビルダー: The easiest ai website builder drafts beautiful websites for your industry in seconds.
- クライアントツール: Contact forms, online payments, and recurring invoices help you engage clients and get paid.
- 専門家によるサポート: A support team of design and copywriting experts refines your website’s design.
- AIアシスト: The AI Assist tool writes relevant content like blog posts and email marketing copy.
- SEOサービス: The built-in seo service and website analytics improve your online presence.
- 連絡先管理: Contact management links social media accounts and leads in one design suite.

私たちのチームが気づいたこと
Our writer built a test B12 website for a mock consulting brand. Here is what stood out from that hands-on time:

ビタミンB12のメリットとデメリット
✅ メリット
- All in one platform with scheduling, invoicing, and email marketing
- Free hosting and custom domain on every paid plan
- Phone support and chat from a real support team
- Built for professional service providers like lawyers and coaches
❌ デメリット
- No free plan, and no code editor for developers
- You cannot export websites off the platform
- Higher price than most other website builders
機能比較
Ready to dive into a detailed comparison of CodeDesign AI vs B12?
We will explore nine key features so you can pick the right website builder.
| 特徴 | コードデザインAI | B12 |
|---|---|---|
| 開始価格 | 0ドル(無料プラン) | 月額42ドル |
| 無料プラン | ✅ | ❌ |
| コードのエクスポート | ✅ | ❌ |
| ドラッグアンドドロップ | ✅ | ✅ |
| 組み込みのSEOツール | ✅ | ✅ |
| オンライン予約 | ❌ | ✅ |
| メールマーケティング | ✅ | ✅ |
| 専門サポートチーム | ❌ | ✅ |
| 最適な用途 | フリーランサー & developers | Service based businesses |
1. AIによるウェブサイト生成
コードデザインAI: This ai website generator turns a text prompt into a full website in seconds. The website creation process handles the initial setup so you can focus on further customization. It suits personal projects and complex websites alike.

B12: B12’s ai builds a personalized website draft tailored to your industry in 60 seconds. This ai driven approach saves service providers countless hours during the website building stage. The draft already includes relevant content and images.

2. Drag and Drop Editor
コードデザインAI: The drag and drop editor is a real strength. Its intuitive interface and smart components make the design process fast. This user friendly interface gives you plenty of customization options without touching code.

B12: B12 uses customizable ai website prompts inside a simple editor. The drag and drop interface is easy for beginners. You edit text and swap images, but deep layout control is more limited than CodeDesign’s features.

3. SEO最適化ツール
コードデザインAI: The built in seo tools cover meta tags, alt text, and clean markup. These essential tools help your professional looking website climb search engine results without extra plugins.

B12: B12 bundles on-page SEO as a managed seo service. Its team tunes titles and content for you. This hands-off model helps a 中小企業 owner who has no time to learn SEO.

4. Code Export and Customization
コードデザインAI: This is where CodeDesign excels. The free AI code generator lets you export websites as HTML code. Developers get full control and can move a wordpress website or static site anywhere.

B12: B12 keeps you inside its all in one platform. There is no code editor and no code export. Third-party integrations connect other tools, but you cannot download the raw files.

⚠️ 警告: If you may leave the platform later, B12’s closed system can lock in your business online.
5. AI Copywriting
コードデザインAI: The ai magic copywriting feature writes headlines and page copy in over 100 languages. AI Magic keeps tone consistent across your complete site, which helps content creation move quickly.

B12: B12’s AI Agent and AI Assist draft blog posts and page copy inside the editor. Design and copywriting experts then review the text, so a professional website reads well before it goes live.

6. Landing Pages and Funnels
コードデザインAI: A dedicated landing page builder and sales funnel tools help you launch a single landing page fast. This makes it a cost-friendly pick for marketers testing one website or offer.

B12: B12 leans on full business websites rather than standalone funnels. Its blogging tool adds web pages that engage clients over time. It is built for depth, not quick one-page campaigns.

7. Email Marketing and Client Tools
コードデザインAI: CodeDesign AI focuses on building the site itself. It covers the basics but leaves client billing and contact forms to outside ai tools you connect yourself.

B12: B12 wins here. Email marketing, contact forms, online payments, and recurring invoices are native. This lets professional service providers manage their whole client cycle in one design suite.

8. Project and Contact Management
コードデザインAI: A built-in project manager keeps your web development tasks in view. It helps agencies track a live site build, though it stops short of full client CRM 特徴。

B12: B12’s contact management stores leads and links social media accounts. It uses artificial intelligence to surface follow-ups, which helps service based businesses stay on top of clients.

9. Templates and Publishing
コードデザインAI: A template builder speeds up your next website. Direct publishing sends your work to your own domain or personal domains in one click. Mobile optimization keeps every page sharp on mobile デバイス and small screen sizes.

B12: B12’s Website Generator GPT drafts new pages from a prompt. Free hosting and a custom domain come with every plan, so your new site is ready to serve clients online right away.

10. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | コードデザインAI | B12 |
|---|---|---|
| 無料 | 0ドルの無料プラン | ❌ (free draft only) |
| 入門/基礎 | 価格についてはお問い合わせください | 月額42ドル |
| 中級クラス | 価格についてはお問い合わせください | 月額169ドル |
| トップティア | 生涯契約が可能 | 月額339ドル |
コードデザインAI: The free plan makes it a low-risk way to test an ai website builder. Paid monthly plans unlock a custom domain and advanced features, but you must ask for a quote. A lifetime deal is the most cost-friendly long-term option.
B12: B12 costs more, yet each plan is an all in one bundle. For $42/month you get hosting, scheduling, and a support team. That price makes sense once you value the bundled seo service and expert help.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 無料スタート | コードデザインAI | Genuine free plan at $0 |
| コードのエクスポート | コードデザインAI | Download raw HTML code |
| オンライン予約 | B12 | Native appointment booking |
| 顧客への請求書発行 | B12 | Branded recurring invoices |
| 初心者でも簡単 | B12 | Draft ready in 60 seconds |
💰 あなたの予算
CodeDesign AI’s free plan is the cheapest way to build one website. B12 has no free tier, so budget users should start with CodeDesign.
🔌 あなたの技術スタック
Developers who want code export should pick CodeDesign AI. If you prefer an all in one platform with built in tools, B12 fits better.
📝 あなたのビジネスの種類
Service based businesses that book appointments should choose B12. Marketers building a landing page or funnel will prefer CodeDesign AI.
🎓 あなたの経験レベル
B12 has the gentler learning curve for total beginners. Tech savvy users get more from CodeDesign’s deeper customization options.
🆓 無料トライアルとデモ
Test both before you decide. CodeDesign AI’s free plan and B12’s free draft let you compare the real website building feel.
🛟 サポートオプション
B12 offers phone support, chat, and ongoing support from experts. CodeDesign AI’s free tier gives only basic customer support.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか?切り替える場合、どのような変更が想定されますか?
🔄 Switching from CodeDesign AI to B12?
✅ 得られるもの:
- Native online appointment scheduling for clients
- 定期請求書とオンライン決済
- A support team of design and copywriting experts
❌ 失うもの:
- The ability to export websites as HTML code
- The $0 free plan
- AI design regenerations for further customization
📋切り替え方法:
- Save your CodeDesign content and images
- Create a B12 account and generate a draft
- ページを再構築し、カスタムドメインを接続してください。
🔄 Switching from B12 to CodeDesign AI?
✅ 得られるもの:
- Code export and full control over your files
- A free plan to test the ai website generator
- AI magic copywriting in over 100 languages
❌ 失うもの:
- スケジュール管理と請求書作成機能が内蔵されています
- Phone support and expert help
- Managed seo service and free hosting
📋切り替え方法:
- Copy your B12 text and download your images
- Start a CodeDesign AI project from a prompt
- Refine the layout, then publish or export the code
私たちのレビューで取り上げられなかったこと
This comparison focused on solo users and small teams. We did not test large agency workflows or how each ai builder handles very high traffic. Our notes are based on the February 2026 versions, so new features may have shipped since then. If you run a big firm in New York or manage 50-plus staff, your priorities may differ from what we covered.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | コードデザインAI |
| 🚀 主な機能 | コードデザインAI |
| 🎯 クライアントツール | B12 |
| 👶 使いやすさ | B12 |
| 🔌 Code & Export | コードデザインAI |
| 🛟 サポート | B12 |
| 🏆総合優勝 | コードデザインAI |
🏆 WINNER: CODEDESIGN AI
CodeDesign AI wins 4 out of 6 categories.
最適な用途: Freelancers, a small business owner on a budget, and developers who want code export.
CodeDesign AI and B12 are two very different products.
CodeDesign AI is a flexible ai powered website builder with code export and a free plan.
B12 is an all-in-one home for service based businesses.
B12 is excellent for professional service providers who want scheduling and invoicing in one place. However, if you want free access, full control, and the option to export websites, CodeDesign AI is the better choice for most users. Test both free options and pick the builder that matches your business needs.
CodeDesign AIの比較をもっと見る
CodeDesign AIが他のウェブサイト構築ツールと比べてどのような特徴を持っているかを以下に示します。
コードデザインAI対 フレーマ
CodeDesign AIが優れている点: free plan access, HTML code export, ai magic copywriting
フレーマーが勝利した点: polished animation control, designer-grade layout tools, larger template library
コードデザインAI対 耐久性
CodeDesign AIが優れている点: code export, deeper customization options, multi-language copy
耐久性に優れた製品は以下の点で優れています。 faster three-minute setup, simpler dashboard, bundled invoicing for freelancers
コードデザインAI対 10ウェブ
CodeDesign AIが優れている点: free entry point, clean code export, landing page speed
10Webが勝利した項目: native WordPress hosting, page-speed booster, plugin compatibility
ビタミンB12の含有量が比較で増加
Here is how B12 stacks up against other tools in the builder market:
B12が勝つ点: expert human review, deeper scheduling tools, richer client management
耐久性に優れた製品は以下の点で優れています。 lower monthly price, quicker generation, lighter setup for solo users
B12が勝つ点: built-in invoicing, email marketing depth, dedicated support team
ジンドゥー 勝利したタイトル: cheaper plans, simple store setup, faster mobile editing
B12が勝つ点: client booking, done-for-you copywriting, all-in-one billing
フレーマーが勝利した点: design freedom, motion effects, developer-friendly components
よくある質問
CodeDesign AIは無料ですか?
Yes. The codedesign ai website builder has a free plan at $0. It lets you test the ai tools and build one website before you pick a paid plan.
Is the B12 website builder free?
B12 has no free plan. Paid plans start at $42/month for the basic plan. You can generate a free draft first to preview your professional website.
Which is the best AI to create a website?
For freelancers and small businesses wanting code export, CodeDesign AI is a top website builder. For service based businesses needing scheduling, B12 fits better.
無料のAIビルダーで自分のドメインを使用できますか?
Yes. Both builders support a custom domain. CodeDesign AI lets you connect personal domains, while B12 includes a custom domain on every paid growth plan.
AIを活用したウェブサイト構築ツールは利用する価値があるのか?
Yes. A good ai website builder saves countless hours during web design. It builds fully functional websites fast, so you can get your business online sooner.













