이메일 작성을 위한 AI 도구 — 2026년 추천 베스트 76선
비즈니스 이메일, 영업 아웃리치, 후속 메일, 사과 메시지 등 이메일 초안을 자동 생성하고 다듬어주는 AI 도구를 비교하세요. AI로 톤, 문법, 스타일을 조정하여 매주 수 시간을 절약하세요.
베스트 76선
Obsidian
A local-file-based knowledge management and note-taking app. Write in Markdown, visualize note relationships with bidirectional links and graph view. Extensible with AI via plugins.
ChatGPT
세계에서 가장 널리 사용되는 대화형 AI 어시스턴트 developed by OpenAI. Powered by GPT-5.4 Thinking, it handles a broad range of tasks including 텍스트 생성, coding, 데이터 분석, and image/video creation.
Claude
An AI 어시스턴트 developed by Anthropic with a focus on safety and 정확도. Features a 1-million-토큰 컨텍스트 윈도우 and powerful analytical and coding capabilities with Claude Opus 4.6/Sonnet 4.6.
LM Studio
A desktop application for running LLMs locally. Chat with AI models privately without internet connection, with support for thousands of open-source models.
Grammarly
An AI 기반 English writing assistant. Provides grammar and spell checking along with style improvement, tone adjustment, and plagiarism detection.
Open WebUI
A 셀프 호스팅 AI chat UI compatible with Ollama and OpenAI-compatible APIs. Capable of running fully offline.
Gemini
A 멀티모달 AI developed by Google DeepMind. Powered by Gemini 3.1 Pro/2.5 Flash, it comprehensively understands text, images, audio, and video, with deep Google 제품 연동.
Ollama
An 오픈소스 tool for running LLMs locally on your PC. Complete privacy protection.
Intercom Fin
AI customer support agent by Intercom. GPT-4o-powered, it auto-answers customer questions and resolves 50%+ of support tickets instantly. Enterprise-grade AI support.
DeepL Write
An AI writing assistant by DeepL. Goes beyond grammar correction to refine tone, style, and phrasing with high precision.
Logseq
A privacy-first, open-source knowledge management tool. Structure your thinking in outliner format with bidirectional links and graph view for visualizing note relationships.
Notion AI
An AI 어시스턴트 integrated into Notion. Seamlessly performs document creation, summarization, translation, and brainstorming within the Notion workspace.
Frase
An AI writing platform specialized in SEO and GEO (Generative Engine Optimization). Handles everything from SERP analysis to content generation and optimization.
DeepSeek
High-성능 AI chat from China. Its 추론 model R1 rivals GPT-4o in capability.
Qwen
A 대규모 언어 모델 developed by Alibaba Cloud. Open-source with world-class 성능 in multilingual support, coding, and mathematical 추론.
Sider AI
브라우저에 사이드바 형태로 통합된 AI 어시스턴트입니다. 모든 웹페이지에서 직접 ChatGPT, Claude 등 AI 모델에 접근할 수 있습니다.
Google Gemma
Google의 경량 오픈소스 AI 모델, 모바일 앱 및 엣지 컴퓨팅에 이상적.
Mistral AI
프랑스 AI 기업이 개발한 오픈 웨이트 LLM. Mistral Large, Mixtral 등 고성능 모델을 제공하며, Le Chat 채팅 인터페이스와 기업용 API로 주목받고 있습니다.
Doubao
ByteDance（TikTok親会社）が開発した中国発AIチャットボット。中国国内で最もユーザー数が多いAIアシスタントで、テキスト・画像・音声のマルチモーダル対応。
AnythingLLM
An all-in-one AI desktop app that runs locally. Integrates RAG, multi-LLM support, and document management to leverage AI while maintaining complete data privacy.
Originality AI
Industry-leading AI content detection and plagiarism checker. Detects text generated by ChatGPT, Claude, Gemini, and more with high precision. Essential for content marketers, publishers, and educators.
LanguageTool
An AI grammar and spell checker supporting 30+ languages. Automatically detects writing errors and suggests style improvements as a comprehensive writing assistant.
QuillBot
The leading AI paraphrasing tool. Rephrase text in 7 modes with integrated grammar checking, summarization, and translation for a complete writing assistant.
Reflect
A networked note-taking app with native AI integration. Features backlinks and graph view plus a GPT-4 based AI assistant for note summarization, organization, and Q&A.
Doubao
ByteDance（TikTok親会社）が開発した中国発AIチャットボット。中国国内で最もユーザー数が多いAIアシスタントで、テキスト・画像・音声のマルチモーダル対応。
Jasper AI
An AI 글쓰기 도구 built for marketing. Rapidly generates marketing content including 블로그 게시물, 광고 카피, and 소셜 미디어 posts.
Copilot (Microsoft)
An AI 어시스턴트 developed by Microsoft. 통합된 into Windows, Edge, and Office products, it supports everything from everyday tasks to business 생산성.
Anyword
An AI copywriting tool featuring predictive 성능 scores based on marketing data. Predicts 광고 카피 effectiveness before publishing.
Writer
An enterprise AI writing platform. A corporate 텍스트 생성 and management tool focused on brand guideline compliance and security.
Poe
An AI chat platform by Quora. Access multiple AI 모델s from a single app.
Monica
A browser 확장 기능 AI 어시스턴트. Use AI features on any web page.
Llama (Meta AI)
Open-source LLM developed by Meta. A 고성능 AI 모델 available for commercial use.
天秤AI byGMO
A platform by GMO that runs and compares multiple generative AI 모델s simultaneously. Compare responses from up to 6 AI 모델s on a single screen.
Jenni AI
An AI 글쓰기 도구 specialized for academic papers and reports. Supports researchers and students with automatic citation insertion, plagiarism checking, and academic style suggestions.
Jan
An open-source local AI chat app. Connect to GPT-4o and Claude via cloud APIs, or easily run local LLMs like Llama and Mistral through a beautiful GUI. Privacy-first design.
Lex
AI-powered minimalist writing editor. Unobtrusive AI completion and suggestions keep you in the writing flow. Perfect for long-form blog posts, essays, and fiction.
Tidio
AI-powered customer support chat platform. The Lyro AI chatbot auto-answers FAQs and handles inquiries, reducing support team workload by up to 70%.
Zendesk AI
AI features integrated into the Zendesk customer support platform. Automatic ticket classification, priority assignment, and AI agent auto-responses dramatically improve support efficiency.
Kickresume
AI-powered resume and cover letter builder with 35+ professional templates. Used by 8M+ job seekers worldwide for ATS-optimized applications.
Kimi
An AI chatbot developed by Moonshot AI with an ultra-long context window. It supports inputs of up to 2 million tokens, enabling analysis of and Q&A over massive document sets in a single session.
HyperWrite
An AI writing assistant. It automates content creation, rewriting, email drafting, and offers real-time writing suggestions directly in the browser — streamlining every writing task.
KoalaWriter
An AI blog writing tool built for SEO. Just enter a keyword and it automatically generates high-quality long-form articles optimized to rank in search results. WordPress integration included.
Writesonic
An AI 기반 content writing platform. Rapidly generates diverse marketing content including 블로그 게시물, 광고 카피, and product descriptions.
Copy.ai
An AI copywriting tool for marketing. Rapidly generates marketing content including 광고 카피, 소셜 미디어 posts, and email copy using AI.
Wordtune
An AI 글쓰기 어시스턴트 from AI21 Labs specialized in text rewriting and improvement. Instantly transforms existing text into better expressions.
Hypotenuse AI
An AI content generation tool specialized for e-commerce. Automates bulk product description generation, SEO blog creation, and catalog management.
Character.AI
An AI chat service specializing in character conversations. Chat with AI personas of all kinds.
Le Chat (Mistral)
A 고성능 chat assistant from Mistral AI. Powered by strong AI 모델s from Europe.
Cohere Command R+
An AI 플랫폼 designed for enterprises. Excels at RAG and retrieval-augmented generation.
Sudowrite
An AI 도구 specialized for fiction and creative writing. Power완벽하게 지원합니다 story creation.
文賢
An AI 기반 일본어 text proofreading and editing tool. Automatically checks for typos, expression improvements, and readability across 100+ check items.
Replika
개인 AI 동반자, 관심사를 학습하고 맞춤형 대화 및 정서 지원 제공.
Type
AI 퍼스트 문서 에디터. GPT-4 통합에 의한 AI 작문 지원으로, 장문 콘텐츠의 초안 작성, 편집, 다시 쓰기를 효율화하는 차세대 라이팅 도구입니다.
Lex Page
GPT-4를 탑재한 AI 라이팅 에디터. 작성자의 스타일을 학습하고 문장의 이어쓰기를 제안하는 인텔리전트한 작문 지원으로 장문 콘텐츠 작성을 효율화합니다.
Candy AI
Candy AIはAIコンパニオン・チャットプラットフォーム。ユーザーが好みのAIキャラクターを作成し、自然な会話や感情的なつながりを楽しめる対話型AIサービス。
GPT4All
An open-source AI chatbot that runs locally on your PC without internet. Use LLMs with complete privacy protection, entirely free of charge.
Mem
An AI-powered knowledge management tool that automatically organizes and connects your notes. Just write notes and the AI understands context, surfacing relevant information automatically.
Yi
A large language model developed by Chinese AI startup 01.AI. Open-source with strong multilingual capabilities and long-context processing.
Amazon Nova
Amazon's family of foundation AI models available through AWS Bedrock. Includes text, multimodal, and image generation models optimized for enterprise applications with strong price-performance.
Mem AI
An AI-powered note-taking app that automatically organizes, connects, and surfaces relevant notes without manual filing. Uses AI to turn unstructured notes into a searchable, intelligent knowledge base.
Rezi
ATS-optimized AI resume builder with keyword scoring and one-click generation from job postings. Maximize your chances of passing automated screening.
Apple Intelligence
Apple's on-device AI built into iPhone, iPad, and Mac. It offers practical AI features like Writing Tools, Image Playground, and an enhanced Siri — all with a privacy-first design.
Step Fun
An AI platform from StepFun (Jieyue Xingchen) powered by the Step-2 model. It offers multimodal capabilities including image understanding and generation, coding assistance, and competitive API pricing.
Magical
An AI 글쓰기 어시스턴트 that automates text input. Streamlines repetitive tasks.
Pi
An emotionally intelligent 대화형 AI 어시스턴트 developed by Inflection AI.
Grok
An AI chat assistant developed by xAI. Access 실시간 data from X (Twitter).
TextCortex
A multilingual AI 글쓰기 어시스턴트. Generate content in 25+ languages.
Catchy
One of Japan's largest AI 글쓰기 어시스턴트 tools. Automatically generates 광고 카피, 블로그 게시물, 소셜 미디어 content, and more with over 140 템플릿.
Cici AI
ByteDance가 개발한 AI 챗봇으로, 자연스러운 대화, 글쓰기 지원, 번역 등을 모두 무료로 제공합니다.
Tripnotes
AI를 활용한 여행 플래닝 어시스턴트. 목적지, 일정, 예산, 취향을 입력하면 최적의 여행 플랜을 자동 생성하는 스마트한 여행 계획 도구입니다.
Undetectable AI
AI humanizer that rewrites AI-generated text to read naturally as human-written. Bypasses AI detection tools while maintaining content quality and meaning.
Rytr
A cost-effective AI 글쓰기 어시스턴트 with 40+ 템플릿 and 30+ language support. Specialized in short-form content creation.
HuggingChat
An 오픈소스 AI chat platform by Hugging Face. Try various 오픈소스 models.
Value AI Writer byGMO
An SEO article generation AI 글쓰기 도구 by GMO Digirock. Automatically generates SEO-optimized articles from just a keyword input.
Hoppy Copy
An AI copywriting tool built exclusively for email marketing. Rapidly generate newsletters, drip sequences, subject lines, and all your email copy in seconds.
Cohesive AI
An AI content editor with 100+ 템플릿. Rapidly generates and edits diverse content including blogs, 소셜 미디어 posts, and scripts.