Terms & Conditions

Effective Date: June 9, 2026

Welcome to CheckerTools.in. By accessing or using our website, tools, calculators, blog articles, and services, you agree to comply with these Terms & Conditions. If you do not agree with any part of these terms, please discontinue use of the website.

CheckerTools.in is a free online platform that provides image tools, health calculators, educational utilities, productivity tools, blog content, and other browser-based digital resources.

1. Use of Our Website

You agree to use CheckerTools.in only for lawful purposes and in a manner that does not harm the website, services, systems, or other users.

You must not misuse or attempt to damage the website.
You must not upload illegal, harmful, copyrighted, or malicious content.
You must not attempt to bypass security measures.
You must not interfere with tool functionality or website performance.
You are solely responsible for any files, images, or content you upload or process.

2. Tools & Services

CheckerTools.in provides various browser-based tools including but not limited to:

Image & Photo Tools

Image Locker Tool – Securely lock, encrypt, and protect private photos directly inside your browser using AES encryption. No server upload, fully secure, and privacy-focused. Supports JPG, JPEG, PNG, WebP, and GIF formats.[reference:0][reference:1]
Blur Detection Tool – Check image blur, sharpness, clarity, and focus quality instantly using edge sharpness and Laplacian variance analysis.[reference:2][reference:3]
Aadhaar & PAN Photo Quality Checker – Check blur, brightness, background quality, image clarity, resolution, and upload suitability instantly before uploading Aadhaar or PAN card photos.[reference:4]
Face Visibility Score Tool – Analyze image quality including brightness, blur, sharpness, face position, alignment, and overall visibility score.[reference:5][reference:6]
Resize Image to 20KB, 50KB, 100KB, 200KB – Compress and resize images online for Aadhaar, PAN, SSC, banking forms, and job applications.[reference:7][reference:8]
Photo DPI Checker & Image Dimension Checker – Check DPI, resolution, dimensions, megapixels, aspect ratio, orientation, and overall image quality.[reference:9]
Free Passport Size Photo Maker – Crop, resize, rotate, compress, and download photos for SSC, UPSC, Railway, Aadhaar, PAN, and other official applications. Supports JPG, PNG, WebP, and PDF output with 8 photos on A4 sheet.[reference:10][reference:11]

Health & Fitness Tools

Human Strength Calculator – Check estimated safe lifting capacity according to age, gender, height, body weight, and activity level using ergonomic and scientific safety-based logic.[reference:12]
Eye Health Diet Calculator – Get eye wellness guidance and Indian food suggestions according to age, weight, height, screen time, and eye number.[reference:13]
Indian Diet Planner – Get personalized Indian diet plans using BMI, calorie, hydration, and meal timing logic. Supports veg, non-veg, vegan, and eggetarian preferences with seasonal adjustments.[reference:14]
Body Recovery Time Calculator – Calculate estimated body recovery time after workouts based on workout duration, sleep hours, and workout intensity.[reference:15]

Education & Productivity Tools

Reading Speed & Understanding Score Tool – Measure reading speed in WPM (Words Per Minute) and comprehension score using a simple 1 to 5 scale. Useful for students, bloggers, and competitive exam aspirants.[reference:16][reference:17]
School Bag Weight Safety Calculator – Check whether your child's school bag weight is safe according to health recommendations (approximately 10% of body weight).[reference:18][reference:19]
AI Brain Focus Planner + Pomodoro Timer – Productivity tracking system with AI focus prediction, Pomodoro timer, daily focus analytics, and focus history using browser local storage.[reference:20][reference:21]
Backpack Load Balance Checker – Check whether school bag weight is safe for your body. Calculates backpack weight percentage and compares with recommended safety limits (10–15% of body weight).[reference:22][reference:23]

Most tools operate directly inside the user's browser and may not require account registration.

We reserve the right to modify, suspend, replace, or discontinue any tool or feature without notice.

3. Tool Results & Accuracy

Tool outputs are generated using automated calculations, browser processing, algorithms, and estimation methods.

Image & Photo Tools – Important Disclaimers

Image quality scores, blur detection results, and sharpness analysis are estimates only and may vary depending on image quality, lighting, compression, camera quality, and focus conditions.[reference:24]
Face visibility scores are not official verification and should not be used as conclusive proof of identity.[reference:25]
Aadhaar & PAN photo quality checks are not affiliated with UIDAI, NSDL, Protean, Income Tax Department, or any government authority. The checker only analyzes image quality and does not verify Aadhaar numbers, PAN details, or official identity information.[reference:26]
DPI and dimension results depend on image metadata and are estimated values.[reference:27]
Image encryption and locking happen locally in the browser. Users are responsible for remembering their passwords as lost passwords cannot be recovered.[reference:28]
Passport size photo maker results depend on user input and image quality. Users should verify final outputs against official requirements.[reference:29]

Health & Fitness Tools – Important Disclaimers

Human Strength Calculator results are estimated according to general ergonomic safety concepts, body weight logic, age adjustments, and physical activity assumptions. Actual human strength can vary based on health condition, injuries, training, posture, and medical factors.[reference:30]
Eye Health Diet Calculator provides general wellness and nutrition guidance only. Results are estimated and should not be considered medically accurate or guaranteed treatment. Users with eye conditions should consult qualified eye specialists.[reference:31][reference:32]
Indian Diet Planner provides general wellness guidance based on BMI, hydration, and nutrition concepts. It should not replace professional medical advice.[reference:33]
Body Recovery Time Calculator provides estimated recovery values based on selected factors. Actual recovery can vary depending on age, nutrition, health conditions, and training style.[reference:34]

Education & Productivity Tools – Important Disclaimers

Reading speed and comprehension scores are approximate and depend on user-provided inputs.[reference:35]
School Bag Weight Safety Calculator and Backpack Load Balance Checker provide estimated guidance based on general health recommendations. Actual safety depends on individual factors including posture, bag design, and carrying habits.[reference:36][reference:37]
AI Focus Planner scores are calculated using user-provided inputs (sleep hours, work duration, distraction level) and are estimates only. Results should not be considered professional productivity or mental health assessments.[reference:38]

Users should independently verify important information before relying on any generated result.

4. Health & Medical Information

Health-related calculators, diet planners, recovery estimators, strength calculators, and educational content available on CheckerTools.in are provided for informational purposes only.

Nothing on this website should be considered:

Medical advice
Diagnosis
Treatment recommendations
Professional healthcare guidance
Prescription or medical treatment[reference:39]

Always consult qualified healthcare professionals before making medical, dietary, fitness, or health-related decisions.

5. Blog Content & Educational Material

CheckerTools.in publishes educational articles, tutorials, guides, tool explanations, and informational blog content including but not limited to:

Exercise Recovery Time Calculator guides[reference:40]
Human Strength and Safe Weight Lifting guides[reference:41]
Eye Health Diet guides for Indian users[reference:42]
Indian Diet Planner educational articles[reference:43]
Image Locker Tool tutorials and security guides[reference:44]
Blur Detection Tool usage guides[reference:45]
Passport Photo Quality checking guides[reference:46]
Photo Quality online checking guides[reference:47]

While we strive to provide accurate information, we do not guarantee that all content is complete, current, or error-free.

Blog content should not be considered professional medical, legal, financial, educational, or technical advice.

6. Privacy & Security

We aim to minimize unnecessary data collection and protect user privacy whenever possible.

Many tools process data locally in your browser. Images and files are not uploaded to external servers.[reference:48][reference:49][reference:50]
We do not intentionally store personal uploads permanently.
We do not provide user account systems.
Google services may use cookies and analytics.
Some tools may use browser local storage to save user preferences or history (e.g., AI Focus Planner). This data remains private on your device.[reference:51]

Please review our Privacy Policy for complete details regarding data handling.

7. Intellectual Property

All website content including branding, logos, design elements, tool layouts, graphics, text, source code, and custom functionality belong to CheckerTools.in unless otherwise stated.

You may share links to our website.
You may use tool outputs for personal use.
You may not copy or resell our tools.
You may not reproduce large portions of website content without permission.
You may not reverse-engineer proprietary functionality.

8. Third-Party Services & Advertisements

CheckerTools.in may contain:

Google AdSense advertisements
YouTube videos and embeds
External website links
Analytics services
Third-party resources

We are not responsible for the content, privacy policies, security, or practices of third-party websites.

9. Limitation of Liability

CheckerTools.in and its owners shall not be liable for:

Loss of files or data
Incorrect tool results including blur detection, sharpness analysis, face visibility scores, DPI estimates, and strength calculations
Photo or document rejection by government portals, Aadhaar, PAN, passport, visa, or other verification systems[reference:52]
Health-related decisions made by users based on calculator outputs
Educational decisions made by users
Website downtime
Technical issues
Browser incompatibility
Direct, indirect, incidental, or consequential damages

Use of the website is entirely at the user's own risk.