AI text detector

Originality.aioriginality.ai

Credit based AI and plagiarism checker with fact checking and readability, aimed at web publishers.

• Green flag: Free plan
• Green flag: Cancel online
• Red flag: Credits reset monthly

AI text detector · API

Copyleakscopyleaks.com

AI content and plagiarism detector covering 30+ languages, AI images and code, with education LMS integrations.

• Green flag: Free plan

AI text detector · API

GPTZerogptzero.me

AI writing detector with sentence highlighting, plagiarism checks, writing replay and classroom integrations.

• Green flag: Free plan

AI text detector · API

Pangram Labspangram.com

Research backed AI text and image detector with very low false positives and LMS integrations.

• Green flag: Free plan
• Green flag: Doesn't train on your data

AI text detector · API

Sapling (AI Detector)sapling.ai/ai-content-detector

Writing assistant with an AI detector and low cost metered detection API for developers.

• Green flag: Free plan
• Green flag: No card for trial

AI text detector · API

Winston AIgowinston.ai

AI text, image and plagiarism detector with OCR, sentence prediction maps and shareable reports.

AI text detector · API

ZeroGPTzerogpt.com

Free, ad supported AI text detector with paid tiers for longer checks plus writing tools.

• Green flag: Free plan
• Green flag: No card for trial
• Green flag: Doesn't train on your data

AI text detector · API

Scribbr (AI Detector)scribbr.com/ai-detector

Free student focused AI detector labeling text as AI generated, AI refined or human, by paragraph.

• Green flag: Free plan

AI text detector

Turnitin (AI writing detection)turnitin.com/solutions/topics/ai-writing

Institution licensed similarity checker with an AI writing and AI paraphrase indicator built into LMS workflows.

• Red flag: No free plan

AI text detector · API