72 Free Web & Productivity Tools

Yes — every one of the 72 tools on SecuredTools.co is completely free with no hidden fees, no premium tier and no sign-up required. All tools work directly in your browser.

No. SecuredTools.co requires zero registration. Open any tool and start using it immediately — no email, no password, no account needed.

Your data never leaves your device. All tools — including PDF tools, file hash generators and image tools — process files entirely in your browser using JavaScript. No file, text or personal data is sent to any server.

Our GST Calculator lets you add or remove GST from any price across all Indian slabs (5%, 12%, 18%, 28%). Select whether your amount is GST-exclusive (add GST) or GST-inclusive (remove GST), choose intra-state or inter-state, and get the CGST/SGST or IGST breakdown instantly.

Use our Age Calculator — enter your date of birth and click Calculate. You get your exact age in years, months and days, total days lived, zodiac sign and days until your next birthday. The tool accounts for leap years automatically.

Use our PDF Merge tool — add your PDF files, drag to reorder them, and click Merge. The combined PDF downloads directly to your device. Files are processed locally in your browser using the pdf-lib library — they are never uploaded to any server.

EMI (Equated Monthly Instalment) = P × r × (1+r)ⁿ ÷ ((1+r)ⁿ−1) where P = principal, r = monthly interest rate, n = total months. Our EMI Calculator applies this formula with bank rate presets for home, car and personal loans and shows you a complete month-by-month amortisation schedule.

Simple Interest = P × R × T (interest only on the original principal). Compound Interest = P × (1+r/n)^(n×t) − P (interest on principal + accumulated interest). Over long periods, compound interest grows exponentially — our calculator shows year-by-year growth for both so you can compare.

Use our BMI Calculator — enter your weight (kg) and height (cm), or switch to imperial (lbs/feet). Your BMI score appears instantly with a colour-coded gauge showing whether you are underweight, normal weight, overweight or obese per WHO standards.

Enter your yearly investment amount (max ₹1.5 lakh), the current PPF rate (7.1%) and your investment tenure (minimum 15 years). Our PPF Calculator shows the maturity amount, total interest earned and year-by-year balance growth — all tax-free under the EEE status.

SecuredTools has a dedicated suite for Indian businesses: GST Calculator, GST Converter, FD Calculator (with SBI/HDFC presets), PPF Calculator, Salary/CTC Calculator, EMI Calculator, Invoice Generator (GST-compliant), Receipt Maker, Quote Generator and Profit Margin Calculator. All are free and no login required.

Use our Invoice Generator — enter your business name and GSTIN, add your client details, list your items with quantities and rates, select the GST rate and whether it is intra-state or inter-state. Click Print to save as a PDF. Fully GST-compliant with CGST/SGST and IGST breakdowns.

SecuredTools.co has 72 free online tools across 10 categories: Calculators (12), PDF Tools (8), Business Tools (7), Developer Tools (10), Finance Tools (6), Text Tools (8), SEO Tools (6), Productivity Tools (6), File Tools (6) and Image Tools (2).

SecuredTools offers 8 free PDF tools: PDF Merge (combine multiple PDFs), PDF Split (extract pages), PDF Rotate (fix orientation), PDF to Text (extract text), PDF Word Count, PDF Watermark (add text stamp), PDF Compress (reduce file size) and Sign PDF (draw signature). All work entirely in your browser with no server upload.

Use our JSON Validator — paste your JSON and it instantly checks syntax, highlights errors with line numbers and offers formatting (2-space or 4-space indentation) and minification. Common JSON errors include missing commas, unquoted keys, single quotes instead of double quotes and trailing commas.

The Flesch-Kincaid Readability Score measures how easy your text is to read (0–100, higher = easier). Our Readability Analyzer calculates this score plus the grade level, word count, sentence count, average sentence length and estimated reading time. Aim for a score of 60–70 for general blog content.

SecuredTools.co is a product of Hustlers Media Pvt Ltd — a digital products company based in India. The platform was built to provide free, privacy-first web tools for developers, marketers and business professionals without requiring sign-ups or subscriptions.

Use our Password Generator — choose your desired length (16+ recommended), select character types (uppercase, lowercase, numbers, symbols), and click Generate. Our tool uses the Web Crypto API for cryptographically secure randomness. You can generate up to 100 passwords at once in the bulk mode.

Yes — all 72 tools are fully mobile-responsive and work on iPhone, Android and any modern mobile browser (Chrome, Safari, Firefox). PDF tools, file converters and all calculators work seamlessly on mobile without requiring any app download.

Use our Schema Markup Generator — select your schema type (FAQ, Article, Product or Organisation), fill in the fields and copy the generated JSON-LD code. Paste it into the section of your HTML page. This can enable rich results in Google including FAQ dropdowns, star ratings and article information.