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AI language tutor for conversation practice in 30+ languages

AI detection, plagiarism checking, and content moderation for text, images, and video.

Check French grammar and normalize typography

AI language tutor for speaking practice

AI writing assistance for grammar, clarity, tone, and text generation.

Language model API toolkit for grammar, autocomplete, AI detection and rephrasing

Arabic reading, grammar and teacher-led study.

Free AI writer for paraphrasing, rewriting, and grammar correction.

Grammar explanations and exercises with answer feedback.

Detailed Korean lessons from reading basics to advanced grammar.

Cambridge English preparation with vocabulary, grammar and exam-skill resources for students and teachers.

Sanskrit explanations from first principles to traditional grammar.

German grammar practice with explanations and progress tracking.

Japanese grammar, reading and character study in a guided course.

Free Japanese grammar guides with examples and explanations.

Check annotated Python code for type inconsistencies before running it.

Printable reading, spelling, grammar and writing resources with subject and grade browsing.

Adjust text and background colours while checking their contrast.

English dictionary lookup with grammar and usage material

Check text and interface contrast with transparency and lightness controls.

Compare on-page and third-party SEO metrics for a supplied list of URLs.

AI detector, humanizer, plagiarism checker and writing tools in one place

Free AI checker that detects ChatGPT, GPT-4 and Gemini text

Check certificate installation and chain problems