Comparison
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 無料AI手紙・挨拶ツール集 (Free Tegami Tools JP) | not listed | yes | Writing & editing |
 Grammarly | 12 USD/mo | yes | Writing & editing |
 QuillBot | not listed | ? | Writing & editing |
 LanguageTool | 49,90 PLN/mo | yes | Writing & editing |
 Canva | 450 PLN/yr | yes | Writing & editing |
 Jetwriter AI | 14 USD/mo | yes | Writing & editing |
 Qodo | 30 USD/mo | trial | Writing & editing |
 Rytr | 7.50 USD/mo | yes | Writing & editing |
 Sudowrite | 10 USD/mo | trial | Writing & editing |
Each alternative in short
1. Grammarly
AI writing assistant that checks grammar, tone and clarity and generates text in any app or website, for individuals and teams.
Yes, there is a free plan. Free plan: writing corrections, see your writing tone, and 100 AI prompts per month.
2. QuillBot
AI writing suite for paraphrasing, grammar checking, AI detection, and content creation, aimed at writers, students, and professionals.
The vendor does not state this clearly on the homepage or pricing page.
3. LanguageTool
AI-based grammar, spelling and style checker for writing in over 30 languages, for individuals and teams.
Yes, there is a free plan. Free grammar checker with basic checks in the online editor and browser add-ons.
4. Canva
Online graphic design platform for creating social posts, presentations, videos, prints and logos, with AI tools, for individuals and teams.
Yes, there is a free plan. Free plan available to start designing with templates and basic tools (details on the pricing page).
5. Jetwriter AI
AI writing assistant as a browser extension, web app and mobile tool for writing emails, fixing grammar and translating on any site.
Yes, there is a free plan. Free plan: regular AI models (GPT 5 mini, Gemini 3 Flash), 15 regular model responses per month, no advanced model responses, browser extension, web app, voice input, live web access, file attachments; no Gmail auto-draft replies and no priority support.
6. Qodo
AI code review platform giving engineering teams codebase-aware PR review, enforceable coding rules and quality governance for AI-assisted development.
There is a free trial. 14-day free trial with no credit card required; the page describes it as including unlimited reviews and unlimited credits.
7. Rytr
AI writing assistant that generates copy, emails, and SEO content in your own tone of voice, for marketers, bloggers and small businesses.
Yes, there is a free plan. Free forever, no credit card required: 10K characters per month, 40+ use cases, 20+ tones of voice, access to the Chrome extension. No plagiarism checks and no tone matching.
8. Sudowrite
AI writing partner for novelists and screenwriters that helps draft, expand, rewrite, and brainstorm fiction in the author's own voice.
There is a free trial. Free trial offered on all plans, no credit card required, cancel anytime.
FAQ
What is the best alternative to 無料AI手紙・挨拶ツール集 (Free Tegami Tools JP)?
The most popular option in the same category is Grammarly. See the comparison table above.