AI Services in Copywriting

AI tools that automatically generate and suggest copy for ads, articles, and websitesFeaturing 12 AI services in total.

ライトソニック

Writesonic

An AI writing tool specialized in generating marketing content.

# コピーライティング# SEO# テキスト生成# AIチャットボット# AIエージェント

グランタブル

Grantable

An AI-powered platform for nonprofits and grant professionals to write and manage grant applications. Upload past proposals and supporting materials, and the AI learns your organization's voice and information to draft new proposals. Includes GrantGraph for funder matching, RFP analysis, and collaborative team editing — end-to-end support for the entire grant application process.

# テキスト生成# PDF・文書生成# コピーライティング

スードウライト

Sudowrite

An AI writing tool built specifically for fiction and creative storytelling. Features include Story Bible for developing ideas into chapter outlines, Write for suggesting continuations, Describe for vivid scene-setting, Brainstorm for idea expansion, and Expand for fleshing out prose. Designed as a creative co-author for writers. Interface and optimization are primarily English-focused; Japanese creative writing is not practically supported.

# テキスト生成# コピーライティング# アイデア支援／創造ツール# 品質向上・クリエイティブ支援

ワードチューン

Wordtune

An AI writing assistant focused on rephrasing and paraphrasing English text. Features include tone-aware rewriting, long-form summarization, AI-generated text, grammar checking, and a Humanize function to make AI-sounding writing feel more natural. Available as a browser extension and editor integration. Primarily English-focused; Japanese writing correction and rewriting are not practically supported.

# コピーライティング# テキスト生成# 要約・翻訳# 品質向上・クリエイティブ支援

グラマリー

Grammarly

An AI writing assistant that detects and corrects English grammar, spelling, and punctuation errors in real time. Also handles tone adjustment, text rewriting, AI-powered content generation, and plagiarism and AI text detection. Available as a browser extension, desktop and mobile apps, and integrates with Microsoft Office and Google Docs. Focused on English; Japanese text proofreading is not practically supported.

# コピーライティング# テキスト生成# 業務効率化# 品質向上・クリエイティブ支援

コピードットエーアイ

Copy.ai

A writing AI that handles diverse text generation tasks, including social media posts, ad copy, and product descriptions.

# コピーライティング# SEO# テキスト生成# AIエージェント

キャッチー

Catchy

A Japanese-made AI writing tool with 100+ templates for quickly generating Japanese content including ad copy, blog posts, social media updates, and product descriptions. Built on a ChatGPT-based engine optimized for Japanese, covering diverse use cases from SEO writing and email drafts to press releases. Available on monthly and pay-as-you-go plans.

# コピーライティング# テキスト生成# マーケティング# 日本語対応

インク

INK

An AI-powered content optimization and SEO writing assistance tool. Displays an SEO score in real time as you write, providing feedback on the keywords, heading structure, and content quality needed to rank in search. Integrates AI writing assistance with SEO guidance to help content marketers produce higher-quality articles.

# テキスト生成# SEO# コピーライティング

サーファー

Surfer

An end-to-end SEO tool for content optimization, writing, auditing, and topic cluster visualization. Compare your article against top-ranking competitor content in real time with keyword, structure, and NLP scoring. Built around Content Editor, Topical Map, and SERP Analyzer — widely used by SEO professionals.

# SEO# マーケティング# コピーライティング

ジャスパー

Jasper

An enterprise AI writing platform for generating diverse content including marketing copy, ads, blog posts, and social media. Train it on your brand voice and product information to produce consistent copy at scale. Includes SEO optimization, collaborative team editing, and 100+ content templates.

# コピーライティング# SEO# テキスト生成# AIエージェント

ライター

Rytr

A multilingual AI writing assistant that rapidly generates blog posts, ad copy, social media content, and more—known for its easy-to-use interface.

# テキスト生成# コピーライティング

マジック エルピーオー

MagicLPO

A next-generation LPO tool where AI automatically identifies landing page issues and proposes improvements. Combines no-code editing with expert consultant support to deliver measurable CVR gains.

# デザイン生成# コピーライティング# コード生成# 品質向上・クリエイティブ支援# マーケティング# 日本語対応