All tools

Free percentage calculator online. Find X percent of Y.

Check BMI using cm, meters, feet, kg, lb, or stone.

Free EMI calculator online. Monthly payment for any loan.

Free word counter online. Words, characters, and reading time.

Free live currency converter for 150+ currencies.

Free age calculator online. Years, months, and days.

Free QR code generator online. From any link or text.

Free unit converter online. Length, weight, volume, and more.

Daily calories from age, height, weight, and activity. Use cm, feet, kg, lb, or stone.

Resting calories from age, sex, height, and weight. Use cm, feet, kg, lb, or stone.

Estimate body fat percentage from BMI, age, and sex.

Estimated due date from the first day of your last period.

Fertile window and ovulation day from cycle length.

Daily water goal based on body weight.

Next period dates from last period and cycle length.

Future value with principal, rate, time, and compounding.

Free GST calculator online. Add or remove GST or VAT.

Tip amount and per-person split for any bill.

Sale price and amount saved from a discount percent.

Free SIP calculator online. Estimate monthly SIP maturity.

Interest and total payable on a simple-interest loan.

Fixed deposit maturity from amount, rate, and years.

Switch text to upper, lower, title, or sentence case.

Create a strong random password in your browser.

Generate placeholder paragraphs for layouts and drafts.

Reverse characters or words in any block of text.

Encode or decode Base64 text without leaving the page.

Turn a title into a URL-safe slug for blogs and pages.

Beautify or minify JSON in your browser.

Convert Celsius, Fahrenheit, and Kelvin instantly.

Spell out any number in English words.

Convert between decimal, binary, and hexadecimal.

Free all-in-one color converter. Paste HEX, RGB, HSL, HSV, or CMYK and copy every other format.

Convert numbers to Roman numerals and back.

Add hours, minutes, and seconds into a total time.

Days, weeks, months, and years between two dates.

Convert a date and time between world time zones.

Convert PDF to Word online free. Download an editable DOCX.

Convert Word to PDF online free. No account needed.

Convert PDF to JPG online free. Every page as a JPEG.

Convert JPG to PDF online free. Combine images into one file.

Convert Excel to PDF online free. XLSX and CSV supported.

Convert PPT to PDF online free. Works with .ppt and .pptx.

Compress PDF online free. Reduce file size in your browser.

Merge PDF files online free. Combine them into one document.

Convert PDF to PNG online free. Sharp page images.

Convert PNG to PDF online free. One or more images.

Split PDF online free. Save each page as its own file.

Free sleep calculator online. Find bedtime or wake time from 90-minute sleep cycles.

Free ideal weight calculator online. Devine, Robinson, Hamwi, and Miller formulas plus a healthy BMI range.

Free mortgage calculator online. Monthly payment from home price, down payment, rate, and term.

Free CAGR calculator online. Compound annual growth rate from beginning value, ending value, and years.

Free random number generator online. Pick random numbers between any min and max.

Free find and replace online. Replace every match in pasted text, with or without matching case.

Free GPA calculator online. GPA from credits, plus CGPA to percentage and back.

Free Unix timestamp converter online. Convert epoch seconds or milliseconds to UTC and local time.

Convert PNG to JPG online free. Download a JPEG in your browser. No account.

Convert WebP to JPG online free. Download a JPEG in your browser. No account.

Free color picker online. Pick a color and copy HEX, RGB, HSL, HSV, and CMYK.

Convert a HEX color code to RGB. Free in your browser.

Convert RGB values to a HEX color code. Free in your browser.

Convert a HEX color code to HSL. Free in your browser.

Convert HSL values to a HEX color code. Free in your browser.

Convert RGB values to HSL. Free in your browser.

Free color palette generator. Build a matching palette from any HEX color.

Free gradient generator. Create a linear or radial CSS gradient from two colors.

Generate ready-to-use CSS for linear, radial, or repeating gradients.

Generate darker shades from any HEX color.

Generate lighter tints from any HEX color.

Generate muted tones from any HEX color.

Find complementary colors for any HEX code. 180° opposite hue pair.

Generate an analogous color palette from a HEX color.

Generate a triadic color combination from a HEX color.

Generate a split-complementary palette from a HEX color.

Create a monochromatic palette from a HEX color.

Free random color generator. Get a random HEX, RGB, and HSL color.

Check text and background contrast ratio for readable UI.

Test text and background colors against WCAG AA and AAA, including large text.

Preview how a color looks with protanopia, deuteranopia, or tritanopia.

Extract a color palette from an image. No upload. Copy HEX swatches.

Find the dominant color in an uploaded image. Runs in your browser.

Find the closest CSS color name for any HEX code.

Check if a HEX color is warm, cool, or neutral, plus an estimated Kelvin value.

Generate CSS color, background-color, and custom property declarations.

Convert HEX to the nearest Tailwind CSS token and class, such as amber-500.

Free color mixer online. Blend two HEX colors by mix percent and copy the result HEX, RGB, and HSL.

Free protein calculator online. Daily protein grams from body weight and goal.

Free inflation calculator online. Future cost and purchasing power from rate and years.

Free word frequency counter online. Count how often each word appears in pasted text.

Free PX to REM converter online. Convert pixels to rem from a root font size.

Convert JPG to PNG online free. Download a PNG in your browser. No account.

Generate a tetradic (square) color palette from a HEX color. Four hues, 90° apart.

Free TDEE calculator online. Total daily energy expenditure from BMR and activity level.

Free ROI calculator online. Return on investment from cost and gain.

Free remove duplicate lines online. Keep unique lines from pasted text.

Free aspect ratio calculator online. Simplify width and height, plus scale to a new width.

Compress image online free. Shrink JPG or PNG in your browser. No account.

Convert a HEX color code to CMYK. Free in your browser.

Daily protein, carbs, and fat grams from calories and diet style.

Convert hourly wage to annual salary, or salary back to hourly.

Encode or decode a URL in your browser. Percent-encoding, no upload.

Convert kilograms to pounds, or pounds back to kilograms.

Convert WebP to PNG online free. Download a PNG in your browser.

Convert CMYK percentages to a HEX color code. Free in your browser.

Target heart rate zones from age using 220 minus age. Free in your browser.

Add or remove sales tax from a price. Free sales tax calculator online.

MD5 and SHA-256 hash generator. Checksums in your browser. No upload.

Convert centimeters to inches, or inches back to centimeters.

Resize image online free. Change width and height in your browser.

Convert RGB color values to CMYK percentages. Free in your browser.

Due date, how many weeks pregnant, and baby growth week by week from your last period.