All Online Tools

GPS camera with location stamp, EXIF geotag, and NoteCam-style notes

Resize by pixels or percent with optional aspect lock

Crop by coordinates or aspect presets

Cut a round profile picture with transparent PNG

Rotate 90° steps or mirror images horizontally/vertically

Stamp text or a logo with opacity and position control

See dimensions, format, and file weight before upload

Inspect camera, timestamp, and GPS hidden in a photo

Read coordinates from photo EXIF and open on a map

Blur, pixelate, or black out sensitive regions

One upload for Instagram, YouTube, X, LinkedIn sizes

Hit IBPS, SBI, SSC and portal photo size windows

Shrink signatures under 10–20 KB for exam forms

Merge photo and signature for IBPS and SBI forms

Crop to passport sizes and tile a print sheet

Build an animation from a sequence of images

Add captions with font size, colour, and shadow

Export favicon sizes plus HTML and manifest snippets

Pull dominant colours from any image

Add padding, shadow, and window chrome to screenshots

Place screenshots in phone, tablet, or laptop frames

Create 1200×630 Open Graph social cards in the browser

Compare two images with a drag slider and export PNG

Remove simple backgrounds with chroma or flood fill

Preview alpha, checkerboard, and edge aliasing on PNGs

Frame screenshots in Tweet/X or LinkedIn post mockups

Create mesh, noise, and gradient wallpapers for any size

Place your logo on t-shirt, mug, and tote mockups

Combine photos into 2–4 cell collage grids

Edit SVG fill, stroke, and text then download

Add text behind or overlay on images

Convert JPG or PNG to WebP for faster pages

Hit a hard size limit like 20KB, 50KB, or 200KB

Convert to or from AVIF in supporting browsers

Get a data URI for CSS or HTML

Reduce GIF colours and scale without breaking the loop

Minify SVG markup and strip unused metadata

Compress images to reduce file size

Convert any image format to JPG

Convert any image format to PNG

Convert the first frame of a GIF to a static JPG

Convert HEIC photos to widely compatible JPG files

Convert PNG images to compact JPG files

Rasterize an SVG graphic as a JPG image

Convert WebP images to universally supported JPG files

Convert the first frame of a GIF to a static PNG

Convert HEIC photos to lossless PNG files

Convert JPG images to editable PNG files

Rasterize an SVG graphic as a PNG image

Convert WebP images to lossless PNG files

Universal hub - JPG, PNG, WebP, AVIF, BMP, TIFF, ICO

Convert BMP/TIFF to JPG, PNG, or WebP

Make a favicon .ico from a logo or photo

Convert iPhone HEIC photos to WebP

Convert AVIF images to lossless PNG

Convert WebP to AVIF in supporting browsers

Calculate chemical concentrations

Calculate density from mass and volume

Calculate solution dilutions

Calculate gas properties using gas laws

Calculate remaining amount, time, or half-life for exponential decay

Calculate molality of solutions

Calculate molarity of solutions

Calculate molecular weight of compounds

Calculate pH from concentration

Calculate chemical reaction stoichiometry

Calculate acceleration from velocity and time

Calculate force using Newton's laws

Calculate kinetic energy from mass and velocity

Calculate potential energy

Calculate electrical and mechanical power

Calculate pressure from force and area

Calculate velocity from distance and time

Calculate area of squares, rectangles, triangles, circles, and more

Calculate mean, median, mode, and range from a list of numbers

Add, subtract, multiply, and divide with a free online calculator

Add, subtract, multiply, and divide integers too large for a standard calculator

Add, subtract, and convert binary numbers to decimal and hex

Find radius, diameter, circumference, area, arc length, and sector area

Find GCD, HCF, LCM, and all common factors of two or more numbers

Compute a confidence interval for a mean or a proportion

Find the distance between two points in 2D or 3D

Calculate powers, roots, and a^b with a step-by-step exponent

List all factors and factor pairs of a whole number

Add, subtract, multiply, and divide fractions and mixed numbers

Find the GCF, GCD, or HCF of two or more whole numbers

Add, subtract, and convert hexadecimal numbers to decimal and binary

Find the LCM of two or more whole numbers

Calculate logarithms in any base, including ln, log10, and log2

Divide with a remainder and see every long-division step

Add, multiply, transpose, and invert 2×2 and 3×3 matrices

Find mean, median, mode, and range from a list of numbers

Find the nth term and sum of arithmetic or geometric sequences

Find a p-value from a z-score, t-statistic, or chi-square statistic

Calculate percent error between experimental and accepted values

Find X% of Y, reverse percentages, and percentage change

Calculate nPr permutations and nCr combinations

Break a whole number into its prime factors

Calculate AND, OR, complement, and binomial probabilities

Solve a² + b² = c² for a missing side of a right triangle

Solve ax² + bx + c = 0 and see discriminant, roots, and vertex

Generate random integers or decimals in a range, in your browser

Simplify ratios, find a missing term, or split a total by ratio

Solve a right triangle for sides and angles with SOHCAHTOA

Calculate square roots, cube roots, and nth roots

Round a number to decimal places, significant figures, or a place value

Estimate survey sample size from confidence level and margin of error

Trig, logs, exponents, and parentheses in a free online scientific calculator

Convert numbers to and from scientific notation (a × 10^n)

Find slope, intercept, distance, and line equation from two points

Calculate sample or population standard deviation and variance

Descriptive statistics: mean, median, quartiles, variance, and SD

Calculate surface area of cubes, spheres, cylinders, and prisms

Solve a triangle from SSS, SAS, ASA, AAS, or SSA and find area

Calculate volume of cubes, spheres, cylinders, cones, and more

Convert a value to a z-score, percentile, or raw score

Convert between length units

Convert between mass/weight units

Convert between temperature scales

Convert between area units

Convert between volume units

Convert between speed/velocity units

Convert between energy units

Convert between power units

Convert between pressure units

Convert between force units

Convert between frequency units

Convert between fuel efficiency units

Convert between density units

Convert between electrical current units

Convert between astronomical units

Convert between weight units

Convert between angle units

Convert between time units

Convert between digital storage units

Convert between Unix timestamps and human-readable dates

Estimate body fat with the DoD/Army circumference method used in AR 600-9

Educational Widmark blood-alcohol estimate. Not for deciding whether to drive

Calculate body mass index from height and weight with WHO adult categories

Estimate basal metabolic rate with Mifflin–St Jeor, Harris–Benedict, or Katch–McArdle

Estimate body-fat percentage from Navy/Hodgdon–Beckett circumference measurements

Estimate BSA with Mosteller and Du Bois formulas from height and weight

Estimate daily calorie needs (TDEE) from BMR and activity level

Estimate pregnancy due date from last menstrual period using Naegele’s rule

Find the adult weight range that corresponds to BMI 18.5–24.9 for a given height

Compare Devine, Robinson, Miller, and Hamwi ideal-body-weight formulas

Estimate lean body mass with Boer, James, and Hume equations

Check adult BMI against the WHO overweight and obesity cutoffs

Check adult BMI against WHO underweight and thinness categories. Not an eating-disorder diagnosis

Estimate exercise calorie burn from MET, body weight, and duration

Plan daily carbohydrate grams from calorie needs and carb percentage or g/kg

Estimate daily fat grams from calorie needs and a 20–35% fat target

Split daily calories into protein, carbohydrate, and fat grams

Estimate 1RM from a submaximal set with Epley and Brzycki formulas

Solve running pace, finish time, or distance from the other two values

Estimate daily protein grams from body weight and activity goal

Find training heart-rate zones with 220−age and the Karvonen method

Unofficial legacy Points estimate from calories, fat, and fiber. Not affiliated with WW