isgen.ai
isgen.ai is an AI content detector that scores text and images for AI generation and highlights the sentences that look machine-written. It also bundles plagiarism and grammar checks alongside its detection scans.
#27 in Writing & Translation ToolsAI DetectorsFree plan
Who it's for
Best for
Teachers checking whether submitted essays were written with ChatGPT
Editors who want sentence-level AI flags on drafts before publishing
Not for
- Dutch-language writers who need dependable scores on their own text
Buyers who expect a refund when a paid plan does not deliver
Free plan$0
Academic$14/mo
Ultimate$40/mo
Writing$25/mo
Features
Sentence and phrase analysis
Detection scans the whole text first, then breaks it down sentence by sentence and phrase by phrase to show which parts push the AI score higher.
Colour-coded results
Every sentence is marked human, AI or mixed, and an impact score list surfaces the top AI and mixed sentences for review.
Over 80 languages
The detector covers more than 80 languages, where most AI checkers on the market handle only English or a very limited set with lower accuracy.
Multi-model coverage
The system is trained to identify text produced by ChatGPT, GPT-6, Claude, Gemini, Llama, Mistral and Deepseek.
Bulk file upload
Text can be pasted up to 5,000 characters, or files uploaded one at a time or in bulk for scanning.
What users say
Pros
- Runs an image check for free without any account signup.
- Gives a fast answer on a questionable image, quicker than inspecting it by eye.
- Reports a very high likelihood of AI and names a diffusion model as the source.
Cons
- An image another detector rated 97% AI came back 100% human here.
- Dutch-language text slipped through undetected despite the wide language claim.
- A refund request for a paid plan was turned down by customer service.
A selection of the review sources we used:
Summarized from public user reviews and community discussions. View details
Global Traffic Rank
Top 500k
Alternatives
Rank#27 in category#11 in category#12 in category#16 in category
Free planYesYesYesYes
ProFree image checks, quick verdicts, model labelsFew false flags and section-level AI markingCatches edited AI text and shows a human, mixed, AI splitSentence-level flags, consistent results, easy cancellation
Better forChecking text directly inside Google Docs and GmailFlagging invented citations and replaying document drafting history
Weaker atScanning images for AI generation