43 Best AI Writing Assistant tools
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TL;DR: The best AI writing assistants in 2026 include grammar and style helpers (Grammarly, Writefull), AI co-writers (Rytr, Frase, HyperWrite), and specialized assistants (FlyMSG for sales, Filtir for fact-checking). The right pick depends on whether you need editing help, generation help, or task-specific writing AI.
AI writing assistants in 2026 have moved past basic grammar correction to context-aware suggestions, brand-voice memory, and real-time fact-checking. Most offer free tiers. Paid plans usually start at $10-30/mo. The differentiator is depth: how well the AI understands your specific writing context, not just generic rules.
How to pick the right AI writing assistant:
- Editing vs generating. Editing assistants polish existing text. Generation assistants write new text from prompts. Different mental models.
- Use case fit. Email assistants, sales scripts, academic writing, and blog drafting all need different optimization. Pick by your dominant output.
- Integration scope. Browser extensions and Gmail/Word add-ons feel different from standalone web apps. Test where you actually write.
Our top picks for 2026:
- Rytr – best affordable all-purpose AI writing co-pilot.
- Frase – best for SEO-focused writing assistance.
- Anyword – best for marketing copy with performance prediction.
- InferKit – best for creative fiction and long-form writing.
- FlyMSG – best AI text-expander for sales and outreach.
- TextFX – best free experimental creative writing assistant by Google.
Last reviewed June 2026 across editing depth, generation quality, integration breadth, and pricing.
List of Top AI Writing Assistant Apps
DescriptionTL;DR: Boo.ai enhances your writing with AI-powered suggestions, templates, and feedback for faster and better writing. Boo.ai gets 7/10 because of its intuitive interface and powerful AI features, though it could expand on customization options and better UI. Boo.ai is an AI-powered writing assistant designed to help users write more efficiently by providing smart autocomplete,…
DescriptionTL;DR: Writely uses AI to assist in writing, improving grammar, style, and overall content quality. We gave 8/10 to Writely AI because of its comprehensive content generation capabilities and user-friendly interface. Writely AI utilizes OpenAI's GPT API to assist in generating various types of content, including blog posts, social media captions, and product descriptions. It's…
DescriptionTLDR: Moonbeam is an AI-powered tool designed to assist with long-form writing, offering a range of templates and styles for various content needs. App Score: We gave 8/10 for Moonbeam due to its versatile templates, ease of use, and AI-driven content creation. Moonbeam excels in creating structured, coherent long-form content like essays, articles, and blog…
DescriptionTLDR: SermonGPT is designed to assist in creating sermons quickly using AI technology. App Score: We gave 6/10 to SermonGPT because of its innovative use of AI for sermon writing, though its niche focus may limit broader appeal. SermonGPT targets religious leaders and sermon creators, offering an AI-driven tool to draft sermons more efficiently. It's…Free to use
DescriptionTLDR: Liner AI is an AI-powered copilot tool that leverages GPT-4 to enhance productivity in various workspaces. AppScore: We give 7/10 to Liner AI because of its AI features and user-friendly interface, although it has room for improvements in customization options. Liner AI is designed to cater to professionals who require efficient information handling and…Free trial available
DescriptionTLDR: Wordtune is an AI-powered writing tool focused on rephrasing and enhancing sentence structures for improved clarity and style. We gave it an App Score of 8/10 because of its AI based rephrasing. Wordtune is an AI-powered rephrasing and writing tool designed to elevate the quality of your written content. Its primary use is to…
DescriptionInferKit is like a smart writing assistant that helps both writers and programmers. If you're a writer, it's like having a co-pilot for content creation—just type a bit, and it adds more, providing you with more stories and ideas. It helps content creators to get inspiration for their content. You can also use the Inferkit…
DescriptionFlyMSG is a productivity tool designed to streamline written communication tasks. It simplifies and accelerates repetitive typing by offering text expansion and keyboard shortcuts. Users can create custom snippets, known as FlyCuts, which are particularly handy for responding to emails, messages, or filling out forms more efficiently. The tool's library of over 200 FlyPlates, or…Free trial available
DescriptionContentBot.ai is an innovative content creation tool designed to streamline the writing process for a variety of content creators. It employs AI-driven automation to offer a range of features for digital marketers, content marketers, founders, copywriters, SEO specialists, and bloggers. The tool boasts a user-friendly interface, providing a suite of automation tools that cater to…Free trial not available
DescriptionTLDR: Jenni AI is an AI content writing assistant designed to aid users in generating written content efficiently. We give Jenni AI an App Score of 9/10. With a simple and user-friendly interface, it offers features like AI autocompletion, in-text citations, text transformations, and a built-in plagiarism checker. This tool can assist in creating various…Free trial available
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