Free Online Calculators, Converters & Developer Tools
BroHelp.me provides over 160 free, instant, and privacy-focused online utilities for math, unit conversions, number bases, text manipulation, and developer workflows. All tools run client-side right in your browser with zero registration required.
Featured Tools
Explore these randomly selected tools or browse through the complete directory in the sidebar menu.
- Odd Parity Calculator Free online odd parity calculator. Compute the required odd parity bit for binary data sequences to ensure error detection.
- Inches To Meters Converter Free online Inches To Meters Converter. Convert lengths from inches to meters accurately with conversion formula, reference table, and real-time calculation.
- Metric Tons To Pounds Converter Free online Metric Tons To Pounds Converter. Convert weights from metric tons to pounds with a reference table and instant calculation.
- Decimal To Gray Code Free online decimal to Gray code converter. Convert decimal (base 10) numbers to reflected Gray code values instantly.
- Metric Tons To Kilograms Converter Free online Metric Tons To Kilograms Converter. Convert weights from metric tons to kilograms with conversion formula, reference table, and instant calculation.
Browse by Category
Jump straight to a category to see its full list of tools plus a few featured picks.
- Math Calculators Solve everyday math problems instantly, including square roots, logarithms, exponents, factorials, Fibonacci numbers, rounding, and prime checks.
- Length Converters Convert between metric and imperial length units, including meters, feet, inches, miles, and nautical miles.
- Weight Converters Convert weight and mass between micrograms, milligrams, grams, kilograms, ounces, pounds, stones, carats, troy ounces, and metric or US short tons.
- Energy Converters Convert energy between joules, kilojoules, BTU, calories, kilocalories, kilowatt-hours, and electronvolt units from eV to GeV.
- Trigon Functions Calculate sine, cosine, tangent, and their inverses, convert angles between degrees, radians, gradians, turns, and DMS, and solve circle arc, chord, and sector problems.
- Base Converters Convert numbers between binary, decimal, hexadecimal, octal, Gray code, and base 36.
- Text Tools Transform and analyze text with case converters, counters, a text diff, URL and Unicode encoders, and other everyday writing utilities.
- Data Converters Convert digital storage units from bytes to petabytes using both decimal (1000) and binary (1024) standards.
- Generators Generate random numbers, digit codes, letters, passwords, colors, MAC addresses, and dice rolls for testing, games, and everyday use.
- Temperature Converters Convert temperature values between Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton, and Delisle scales.
- Power Converters Convert power units between microwatts, milliwatts, watts, kilowatts, megawatts, gigawatts, horsepower, BTU per hour, kilocalories per hour, dBm, dBW, and tons of refrigeration.
- Color Converters Convert colors between RGB, HEX, HSL, HSV, and CMYK formats for design and development work.
- Error Detecting Calculate and verify parity bits, Hamming codes, and CRC checksums used for error detection and correction.
- Various Tools A mix of handy utilities including a discount calculator, Unix timestamp converter, click counter, and quick yes/no and go/no-go decision helpers.
- Info Tools Check your IP address, screen resolution, JavaScript support, the current Unix timestamp, and the current week number.