AI Mail Assistant
Gmail Email Writing
ChatGPT AI for Gmail: Generate, summarize, translate, and improve emails.
Like Hiwriter, AI Mail Assistant is in the Gmail Email Writing category. Both are free. Worth comparing on the detail page.
We've curated 46 of the best alternatives to Hiwriter, ranked by feature overlap, topic similarity, user ratings, and popularity. AI Mail Assistant, ChatGPT Mail Responder, and GmailGPT lead the list as the closest matches.
Updated May 18, 2026
The list includes 42 free alternatives, 3 freemium, and 1 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Hiwriter itself is free, which makes free alternatives the most natural starting point.
Many of these tools cluster around use cases like Free, Image, Text, and Email Management — the same problem spaces Hiwriter addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Hiwriter.
Ranked by compatibility score
Gmail Email Writing
ChatGPT AI for Gmail: Generate, summarize, translate, and improve emails.
Like Hiwriter, AI Mail Assistant is in the Gmail Email Writing category. Both are free. Worth comparing on the detail page.
Gmail Email Writing
AI-powered Gmail assistant for faster, smarter responses
42 free and 3 freemium options.
22 additional candidates
AI Mail Assistant ranks as the highest-scoring alternative to Hiwriter, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 42 fully free and 3 freemium alternatives are available, including AI Mail Assistant, ChatGPT Mail Responder, and GmailGPT.
AI Mail Assistant is similarly priced (free) and sits in the same category (Gmail Email Writing). View its detail page to compare features, integrations, and reviews side-by-side.
Top Gmail Email Writing alternatives include AI Mail Assistant, ChatGPT Mail Responder, GmailGPT, and Mailmerge-JS. These tools share the same primary category and have meaningful topic overlap with Hiwriter.
Like Hiwriter, ChatGPT Mail Responder is in the Gmail Email Writing category. Both are free. Worth comparing on the detail page.
Gmail Email Writing
Write emails in 1 click using AI
Like Hiwriter, GmailGPT is in the Gmail Email Writing category. Both are free. Worth comparing on the detail page.
Gmail Email Writing
AI-powered Gmail automation for personalized emails
Like Hiwriter, Mailmerge-JS is in the Gmail Email Writing category. Both are free. Worth comparing on the detail page.
Gmail Email Writing
AI drafts Gmail replies automatically
Like Hiwriter, Ready to Send is in the Gmail Email Writing category. Ready to Send is freemium, while Hiwriter is free. Worth comparing on the detail page.
Gmail Email Writing
Automatically draft email replies, straight from Gmail.
Like Hiwriter, Trimbox AI Assistant is in the Gmail Email Writing category. Trimbox AI Assistant is freemium, while Hiwriter is free. Worth comparing on the detail page.
Gmail Email Writing
Gmail emails that write themselves? It's not magic, it's MailWizard.
Like Hiwriter, MailWizard is in the Gmail Email Writing category. MailWizard is free-trial, while Hiwriter is free. Worth comparing on the detail page.
Gmail Email Writing
AI learns from you and drafts answers to all your emails
Like Hiwriter, Auto Gmail is in the Gmail Email Writing category. Auto Gmail is freemium, while Hiwriter is free. Worth comparing on the detail page.
Email Writing
Create impactful emails effortlessly with AI.
MailGenerator shares 2 topics with Hiwriter: Email Generation and Free. Both are free.
Regex
Regex code validation and generation
Regexer shares 1 topic with Hiwriter: Free. Both are free.
Social Media Posts
AI-powered social media posts from your images.
Spark App shares 1 topic with Hiwriter: Free. Both are free.
Q&a From Books
Explore ideas and discover books through AI-powered conversations.
Talk to Books shares 1 topic with Hiwriter: Free. Both are free.
Nsfw Image Detection
Identify NSFW images in the browser
NSFW JS shares 1 topic with Hiwriter: Free. Both are free.
Music Creation
Produce unique rap lyrics with rap history and tech.
Raplyrics shares 1 topic with Hiwriter: Free. Both are free.
Music Choreographies
Create dance routines from music.
Edge Dance shares 1 topic with Hiwriter: Free. Both are free.
Interior Design
Transform your space with AI-powered interior design ideas
AI Room Planner shares 1 topic with Hiwriter: Free. Both are free.
Coding
Generate code from natural language
CodePal shares 1 topic with Hiwriter: Free. Both are free.
Presentation Slides
Effortless presentations for all.
AI GPT for Slides shares 1 topic with Hiwriter: Free. Both are free.
News
Video news summaries with balanced perspectives.
Nuz shares 1 topic with Hiwriter: Free. Both are free.
Sales Emails
Craft sales emails that connect, engage, and convert.
PictoDream shares 1 topic with Hiwriter: Free. Both are free.
Learning
Instant knowledge on any topic
TutorAI shares 1 topic with Hiwriter: Free. Both are free.
Chatbots
Fast access to online information.
HotBot shares 1 topic with Hiwriter: Free. Both are free.
Children's Stories
Create children's stories with AI-powered imagination.
We Made a Story shares 1 topic with Hiwriter: Free. Both are free.
Social Media Posts
Social post creation made easy from media sources.
AI-Powered Post Generator shares 1 topic with Hiwriter: Free. Both are free.
39 more free/freemium alternatives listed below. Browse all Hiwriter alternatives ↓
45 free or freemium alternatives to Hiwriter on /tools/hiwriter/alternatives.
ChatGPT Prompt Generator shares 1 topic with Hiwriter: Free. Both are free.
Neither Hiwriter nor AI Mail Assistant has user ratings yet — be the first to review either tool to help future visitors compare them.
