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Text tools
Calculators
Image tools
Converters and developer tools
Everyday utilities
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Converters and developer tools

Converters and developer tools

Handy utilities to convert numbers, codes, timestamps, and colors.

No tools currently published in this category.

Mubarak4u provides 100% free, fast, browser-based online tools and practical guides for everyday work, calculations, and conversions without accounts or data storage.

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Platform Promise

Every browser utility runs client-side where possible. We do not track your input values, require passwords, or lock utilities behind paywalls.

Text tools

Instagram Bio Character Counter
Meta Description Length Checker
Number to Words Converter (Rupees and Paise)
Remove Line Breaks Online
Sort Lines Alphabetically
Text to URL Slug Generator

Calculators

Average Calculator (Mean, Median, Mode, Weighted)
CGPA to Percentage Calculator (CBSE & University)
Compound Interest Calculator with Schedule
Date Difference Calculator (Days, Weeks, Months)
Discount Calculator (Sale & Stacked Discount)
Hours and Minutes Calculator (Add, Subtract, Elapsed)
Land Area Converter (Acre, Bigha, Gaj, Sq Ft, Guntha)
Marks Percentage Calculator
Mileage and Fuel Cost Calculator (km/L, Trip Cost, Split)
Profit and Loss Percentage Calculator (Markup & Margin)
Ratio Calculator (Simplify, Solve Proportions, Split)
Recurring Deposit (RD) Calculator (Indian Bank Standard)
Reverse GST Calculator (Add or Remove GST)
Simple Interest Calculator (SI & Total Amount)

Image tools

Compress Image to KB Online (20KB, 50KB, 100KB, 200KB)
Image to PDF Converter (JPG, PNG, WebP to PDF)
Photo and Signature Resizer (cm, px, DPI, KB)

Converters and developer tools

Base Converter (Binary, Decimal, Hexadecimal, Octal)
Color Converter (HEX, RGB, HSL, CMYK, Contrast)
Roman Numeral Converter (1 to 3999, Date & Year)
Unix Timestamp Converter (Epoch to Date, UTC, IST)

Everyday utilities

Countdown Timer Online (Custom Duration & Target Date)
Pomodoro Timer Online (25/5 Study and Focus Clock)
Random Name Picker (Wheel Spinner & Raffle Draw)

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