Top 4 AI tools: Grammar Checker (2026)

WriteHuman is an AI-powered content rewriting tool designed to transform AI-generated text into human-like writing. It aims to help users bypass AI detection tools by rephrasing content to appear more natural and authentic.

• AI Humanizer: Transforms AI-generated content into human-like text.
• Tone Customization: Allows selection of various tones to match the desired writing style.
• Enhanced Model: Offers advanced rewriting capabilities for premium users.

MerciApp is a spelling and style checker built by a French team specifically for the French language. Where general-purpose checkers struggle with the subtleties of French grammar, it catches agreement errors, conjugation mistakes, barbarisms and clunky phrasing with remarkable accuracy, right inside all your writing tools.

• Specialized French correction: spelling, grammar and conjugation
• Smart real-time autocorrect in your text fields
• Educational explanations for every mistake it flags

Cabina.AI is an all-in-one AI workspace that integrates multiple large language models (LLMs) and generative tools into a single platform. It enables users to interact with various AI models, generate content, edit images, transcribe audio, and more, all within a unified interface.

• Multi-LLM integration (ChatGPT, Claude, Gemini, etc.)
• Unified chat interface for multiple AI models
• AI-powered content generation and editing tools

QuillBot is a writing toolkit built around paraphrasing: it rewrites your sentences in different styles while preserving the original meaning. A grammar checker, summarizer, translator, plagiarism checker, AI detector and text humanizer round out the lineup, making it a favorite companion for students and writers.

• Paraphraser with multiple writing modes
• Multilingual grammar and spelling checker
• Summarizer for texts and articles