Official Transparency NoticeEffective: July 2, 2026Last Reviewed: October 2026

Disclaimer & Professional Limits

Crucial disclosures and domain-specific guidance regarding health calculators, financial estimators, cryptographic generators, and code minifiers. Always verify critical results before reliance.

Medical Scope

Non-Diagnostic

Formulas are statistical approximations and do not substitute medical care.

Financial Scope

Estimates Only

Calculations exclude lender escrow, statutory taxes, and specific closing fees.

Cryptography

Browser CSPRNG

JWT tool decodes payload structure without private key verification.

Code Tools

Verification Advised

Always back up source files and test minified assets before production.

1

General Informational Use & Convenience Scope

The calculators, converters, minifiers, generators, simulators, and informational guides published on Manjurul ("the Service") are provided strictly for general educational, productivity, and convenience purposes.

While we strive for technical excellence, computational fidelity, and mathematical accuracy, the software operates without human intervention or personalized review. Outputs may reflect rounding variations, edge-case behavior, or limitations inherent to browser-based JavaScript execution.

2

Health, Fitness & Medical Calculators Disclaimer

Important Medical Disclosure

The health utilities on this website—including the BMI Calculator, Body Weight Calculator, Creatinine Clearance Calculator, and Sleep Time Calculator—are NOT medical diagnostic instruments, clinical treatment plans, or prescription dosing systems. They do NOT constitute medical advice.

These tools implement recognized population-level statistical equations (such as the Cockcroft-Gault formula for estimated renal clearance, the Mifflin-St Jeor equation for basal metabolic rate, and the Quetelet index for BMI). However:

  • Formulas do not account for individual clinical factors such as muscle mass, fluid overload, severe obesity, amputations, renal transplant history, pregnancy, or metabolic disorders.
  • Never adjust medications, therapeutic regimens, or pharmaceutical dosages based solely on calculations generated by this site.
  • Always consult a licensed medical doctor, nephrologist, clinical pharmacist, or registered dietitian for personalized medical guidance. If you are experiencing a medical emergency, call your local emergency services immediately.
3

Financial, Loan & Percentage Calculators Disclaimer

The Loan Calculator and Percentage Calculator provide mathematical simulations based on standard amortization formulas and algebraic ratios.

  • Calculations do NOT constitute an offer of credit, loan pre-approval, commitment to lend, or certified financial or tax advice.
  • Estimates typically exclude real-world loan overhead such as origination points, appraisal fees, title insurance, private mortgage insurance (PMI), property tax escrow, home insurance, and specific day-count conventions (such as Actual/360 or 30/360).
  • Before committing to legally binding mortgage agreements, commercial loans, or investment strategies, consult a certified financial planner (CFP), accountant, or licensed lending officer.
4

Cryptographic, Password & Security Utilities

Our security utilities (including the Password Generator, UUID Generator, Hash Generator, and JWT Decoder) are engineered using standard web cryptographic APIs:

  • JWT Decoder Notice: The JWT Decoder tool parses and reveals the Base64URL-encoded JSON header and claims payload for debugging and development. It does NOT cryptographically verify the signature against private/public keys, nor does it validate token expiry or revocation status against an identity provider. Never trust decoded claims without independent server-side cryptographic signature validation.
  • Cryptographic Randomness: Random string and UUID generation utilize the host browser'scrypto.getRandomValues() CSPRNG. While cryptographically strong, browser-generated keys do not offer Hardware Security Module (HSM) tamper protection.
  • Legacy Hash Algorithms: The Hash Generator includes legacy algorithms (MD5 and SHA-1) solely for compatibility and historical checksum comparisons. Neither MD5 nor SHA-1 is secure against intentional cryptographic collision attacks and should never be used for password hashing or digital signatures.
5

Code Minifiers, Parsers & Transformers

Utilities such as the HTML/CSS/JS Minifier, SVG Optimizer, Text Diff Checker, Regex Tester, and JSON/YAML Converters perform aggressive lexical parsing and AST dead-code elimination:

  • While based on industry-standard engines (Terser, CSSO, SVGO), minification can occasionally introduce subtle semantic bugs if source code relies on non-standard JavaScript quirks, dynamic eval(), reflection, or unscoped CSS custom properties.
  • Mandatory Backup Requirement: Always maintain unminified, version-controlled source files. Never overwrite production code without verifying minified artifacts in a staging environment.
6

Unit, Measurement & Timezone Conversions

The Unit Converter and Timezone Converter rely on standard international conversion constants and the IANA Time Zone Database available in the host browser. Due to geopolitical daylight saving adjustments, leap seconds, and precision limits, critical scientific, navigational, or astronomical measurements should be corroborated through primary standards organizations (such as NIST or BIPM).

7

Absence of Professional Relationship

Your use of Manjurul, its calculators, or email communication with its maintainers does not create an attorney-client, doctor-patient, accountant-client, fiduciary, or any other professional advisory relationship. The site operator is not your physician, attorney, broker, or financial advisor.

8

User Verification & Assumption of Risk

You expressly acknowledge and agree that your use of the Service is at your sole risk. You assume full responsibility for verifying the accuracy, completeness, and appropriateness of any calculations, code, images, or files generated through Manjurul before publishing, deploying, signing, or relying upon them.

If you identify a calculation inaccuracy or bug in any of our tools, please notify us immediately at contact@manjurul.com or via our Contact page.

Questions or Clarifications?

If you have any questions regarding this policy or our privacy-first in-browser architecture, please reach out to us at our Contact page or email contact@manjurul.com.