CoverSentry

coversentry.com

Cover letter AI detector

Check if your cover letter sounds AI-generated and get tips to pass HR screening.

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Overview

CoverSentry is a free web tool that checks whether a cover letter appears AI-generated. Users upload a PDF, DOCX, RTF, or TXT file or paste text, and a fine-tuned BERT model trained on thousands of cover letters returns a confidence score with recommendations. It is for job seekers who want to avoid recruiter red flags and for recruitment teams that want to screen applications for AI-generated content.

How it works

CoverSentry uses a fine-tuned BERT language model trained on a custom dataset of cover letters to identify patterns that distinguish human writing from AI-generated content. Users can upload a file in PDF, DOCX, RTF, or TXT format (up to 50MB) or paste text directly. The scan runs instantly and returns a confidence score with a classification of Human, Mixed, or AI, along with recommendations for improvement.

Key capabilities

The tool provides instant results with a confidence score and a Human, Mixed, or AI classification. It also offers recommendations to make a cover letter more human-like, such as adding personal touches and varying sentence structures. CoverSentry supports English-language content only, and the analysis is performed in-memory with no data storage, no cookies, and no tracking.

Who it is for

CoverSentry is designed for job seekers who want to ensure their cover letters pass as human-written when reviewed by potential employers. It is also useful for HR departments and recruitment agencies, with custom enterprise solutions that can integrate into existing applicant tracking systems to automatically screen incoming applications for AI-generated content and detect high-volume, low-intent applications.

Pricing and limits

CoverSentry is free to use, with no signup required for the basic scan. The site also offers a free CV builder with 1,200+ job titles, suggested bullet points, and PDF or DOCX download without registration or watermarks. Enterprise solutions are available for recruitment teams, and the company is based in the Netherlands, operating under GDPR regulations.

Key features

AI detection with BERT model
Fine-tuned BERT model trained on thousands of cover letters to detect AI-generated text.
Multiple input formats
Upload .pdf, .docx, .rtf, or .txt files, or paste text directly for analysis.
Privacy-first processing
Cover letters are analyzed in-memory and immediately discarded; no cookies or data storage.
Instant results with recommendations
Receive a confidence score and recommendations to make your cover letter more human-like.
Free CV builder
Free CV builder with 1,200+ job titles, suggested bullet points, and PDF/DOCX download without registration.

Use cases

Check cover letter authenticity
Job seekers can check if their cover letter appears AI-generated before submitting it to employers.
Screen applications for AI content
HR teams can integrate CoverSentry into their applicant tracking system to screen applications for AI-generated content.
Build a resume with the CV builder
Users can use the free CV builder to create a professional resume with suggested bullet points for 1,200+ job titles.

Pricing & limits

From the official site · checked 10/10/2026

FreeFree

See current pricing on the official site

Frequently asked questions about CoverSentry

What is CoverSentry?: CoverSentry is a free tool that analyzes your cover letter to check if it appears AI-generated. It uses a fine-tuned BERT model trained on thousands of cover letters.
Who is CoverSentry for?: It is for job seekers who want to ensure their cover letters pass as human-written, and for recruitment teams that want to screen applications for AI-generated content.
Is CoverSentry free?: Yes, CoverSentry is free. The pricing text on the site states '0 USD'.
What formats and languages does CoverSentry support?: CoverSentry supports uploading .pdf, .docx, .rtf, or .txt files, or pasting text directly. It currently checks cover letters in English only.
Is my data secure with CoverSentry?: CoverSentry does not store your cover letters. All processing happens on-the-fly, and data is immediately discarded after analysis. It does not use cookies to track you.