All tools — SimpleFlick

PDFPDF WorkspaceEdit, organize, compress and finish a PDF in one private workspace. Protected document

PDFMerge PDFCombine multiple PDF files into one. Protected document

PDFCompress PDFReduce PDF file size with a clear quality choice. Protected document

PDFSplit PDFExtract a page range into a new PDF. Protected document

PDFRotate PDFRotate all pages or a selected page range. Protected document

PDFAdd page numbersAdd clean page numbers to a PDF. Protected document

PDFExtract PDF textRead selectable text from a PDF. Protected document

PDFPDF infoInspect page count, size and document metadata. Protected document

PDFOrganize PDF pagesDrag, reorder, rotate and delete PDF pages visually. Protected document

PDFRemove PDF pagesRemove specific pages or page ranges from a PDF. Protected document

PDFExtract PDF pagesCreate a new PDF from selected pages and ranges. Protected document

PDFReverse PDF pagesReverse the complete page order of a PDF. Protected document

PDFDuplicate PDF pagesRepeat selected pages inside a PDF. Protected document

PDFRotate selected PDF pagesRotate only the pages you choose by 90°, 180° or 270°. Protected document

PDFCrop PDF pagesTrim visible margins from all or selected PDF pages. Protected document

PDFAdd text watermarkStamp English or Arabic text across selected PDF pages. Protected document

PDFAdd headers & footersAdd reusable header and footer text with page placeholders. Protected document

PDFEdit PDF metadataUpdate title, author, subject, keywords and creator fields. Protected document

PDFRemove PDF metadataRemove standard document properties and embedded XMP metadata. Protected document

PDFFlatten PDF formsTurn filled form fields into fixed page content. Protected document

PDFMultiple pages per sheetPlace 2, 4 or 6 PDF pages on each printable sheet. Protected document

PDFPDF booklet creatorImpose pages for duplex booklet or brochure printing. Protected document

PDFCompare PDF textCompare the selectable text of two PDFs page by page. Protected document

TextWord counterCount words, characters, lines and reading time. Local

TextCase converterUppercase, lowercase, title case and sentence case. Local

TextRemove duplicate linesKeep one copy of repeated lines. Local

TextSort linesSort lines alphabetically or reverse them. Local

TextClean spacesRemove repeated spaces and empty lines. Local

TextFind & replaceReplace text once or everywhere. Local

TextSlug generatorTurn a title into a clean URL slug. Local

TextText differenceCompare two texts line by line. Local

CalculatePercentage calculatorCalculate a percentage of any value. Local

CalculatePercentage changeMeasure the percentage increase or decrease between two values. Local

CalculatePercentage differenceCompare two values using their average as the reference. Local

CalculateAverage calculatorFind the sum, count and arithmetic mean of a number list. Local

CalculateRatio calculatorSimplify a two-part ratio and show its decimal relationship. Local

CalculateAge calculatorFind age from a date of birth. Local

CalculateDate differenceCount calendar days between two dates. Local

CalculateTime durationFind the elapsed hours and minutes between two times. Local

CalculateAdd or subtract timeAdd or subtract hours and minutes from a starting time. Local

CalculateAdd or subtract daysMove a date forward or backward by a chosen number of days. Local

CalculateBusiness days calculatorCount weekdays between two dates while excluding weekends. Local

CalculateCountdown calculatorSee the remaining days, hours and minutes until a date and time. Local

CalculateDiscount calculatorFind final price and savings after a discount. Local

CalculateMultiple discount calculatorApply two discounts in sequence and find the real combined saving. Local

CalculateTip calculatorCalculate a tip and the total bill. Local

CalculateSplit bill calculatorSplit a bill and optional tip equally between people. Local

CalculateUnit price calculatorCompare package value by calculating the price per unit. Local

CalculateSales tax calculatorAdd sales tax to a price or extract tax from a tax-inclusive total. Local

CalculateVAT calculatorAdd or remove VAT from an amount. Local

CalculateProfit marginCalculate profit and margin from cost and selling price. Local

CalculateMarkup calculatorCalculate selling price from cost and markup percentage. Local

CalculateCommission calculatorCalculate commission earnings and the remaining amount. Local

CalculateBreak-even calculatorEstimate the units and revenue needed to cover fixed costs. Local

CalculateROI calculatorCompare investment gain with the original invested amount. Local

CalculateLoan payment calculatorEstimate monthly payments, total payment and interest for a fixed loan. Local

CalculateMortgage calculatorEstimate principal-and-interest payments from price, deposit and term. Local

CalculateSimple interest calculatorCalculate simple interest from principal, annual rate and time. Local

CalculateCompound interest calculatorEstimate future value with regular compounding and optional contributions. Local

CalculateSavings goal calculatorEstimate the monthly saving needed to reach a target amount. Local

CalculateFuel cost calculatorEstimate fuel needed and trip fuel cost from distance and efficiency. Local

CalculateFuel economy calculatorCalculate kilometres per litre and litres per 100 kilometres. Local

CalculateTrip cost calculatorCombine fuel, tolls and other costs and split them between travellers. Local

CalculateSpeed, distance & timeFind one travel value when the other two are known. Local

CalculatePace calculatorCalculate pace, speed and finish time from distance and duration. Local

CalculateBMI calculatorEstimate body mass index from height and weight. Local

CalculateBMR calculatorEstimate resting daily energy needs using age, height and weight. Local

CalculateDaily calorie estimateEstimate daily maintenance calories from BMR and activity level. Local

CalculateSleep time calculatorPlan approximate bed or wake times using 90-minute sleep cycles. Local

CalculateArea calculatorCalculate rectangular floor area in square metres and square feet. Local

CalculatePaint calculatorEstimate paint litres from wall dimensions, coats and coverage. Local

CalculateConcrete volume calculatorEstimate concrete volume for a rectangular slab with optional waste. Local

CalculateTile calculatorEstimate tile quantity from surface and tile dimensions with waste. Local

CalculateElectricity cost calculatorEstimate electricity use and cost from power, hours and tariff. Local

CalculateData transfer timeEstimate download or transfer time from file size and connection speed. Local

Arithmetic & number senseTimes tablesGenerate a clear multiplication table for practice. Local

Arithmetic & number senseArithmetic practiceCreate addition, subtraction, multiplication or division practice. Local

Fractions & ratiosFraction simplifierReduce a fraction to its simplest form. Local

Fractions & ratiosFraction calculatorAdd, subtract, multiply or divide fractions. Local

Arithmetic & number senseGCD & LCMFind the greatest common divisor and least common multiple. Local

Geometry & measurementArea & perimeterStudy rectangle, square, circle and triangle formulas. Local

Algebra & functionsLinear equation solverSolve equations in the form ax + b = c. Local

Algebra & functionsQuadratic equationFind the roots and discriminant of ax² + bx + c = 0. Local

Geometry & measurementPythagorean theoremFind a missing side in a right triangle. Local

Geometry & measurementSlope calculatorFind the slope between two coordinate points. Local

Geometry & measurementDistance between pointsCalculate 2D distance between two coordinates. Local

Algebra & functionsScientific notationConvert ordinary numbers into scientific notation. Local

Statistics & probabilityMean, median & modeSummarize a list of numbers for statistics practice. Local

Statistics & probabilityStandard deviationCalculate population or sample standard deviation. Local

Statistics & probabilityPermutations & combinationsCalculate nPr and nCr for probability lessons. Local

Geometry & measurementCircle calculatorFind diameter, circumference and area from radius. Local

Arithmetic & number sensePrime number checkCheck whether a whole number is prime. Local

Arithmetic & number senseFactor finderList the positive factors of a whole number. Local

Fractions & ratiosRatio simplifierReduce a two-part ratio to simplest form. Local

Fractions & ratiosFraction to decimalConvert a fraction into a decimal value. Local

Fractions & ratiosDecimal to fractionConvert a terminating decimal to a simplified fraction. Local

Fractions & ratiosProportion solverSolve a/b = c/x for the missing value. Local

Algebra & functionsPowers & rootsCalculate powers, square roots and nth roots. Local

Algebra & functionsLogarithm calculatorCalculate logarithms using any positive base. Local

Geometry & measurementTriangle areaCalculate triangle area from base and height or three sides. Local

Geometry & measurementSolid volumeCalculate the volume of a box, cylinder, sphere or cone. Local

Mechanics & machinesSpeed, distance & timeSolve v = d/t for speed, distance or time. Local

Statistics & probabilitySimple probabilityCalculate probability from favorable and total outcomes. Local

Statistics & probabilityWeighted averageCalculate a weighted mean from values and weights. Local

Algebra & functionsArithmetic sequenceFind the nth term and sum of an arithmetic sequence. Local

Grades & academic planningGrade neededSee what score you need on the final assessment. Local

Grades & academic planningGPA calculatorCalculate a weighted GPA from courses. Local

Algebra & functions2×2 matrixFind determinant and inverse of a 2×2 matrix. Local

Algebra & functionsVector calculatorFind magnitude, dot product and angle between two 3D vectors. Local

Statistics & probabilityZ-scoreCalculate a z-score from value, mean and standard deviation. Local

Algebra & functionsLinear interpolationInterpolate a value between two known points. Local

Algebra & functionsSignificant figuresRound a number to a selected number of significant figures. Local

Algebra & functions3×3 determinantCalculate the determinant of a 3×3 matrix. Local

Algebra & functionsComplex numberAdd, subtract, multiply and inspect complex numbers. Local

Statistics & probabilityCorrelation coefficientCalculate Pearson correlation for paired data. Local

Statistics & probabilityMean confidence intervalEstimate a z-based confidence interval for a mean. Local

Algebra & functionsPolynomial derivativeDifferentiate a polynomial entered as coefficients. Local

Algebra & functionsPolynomial integralFind an indefinite polynomial integral from coefficients. Local

Electrical engineeringOhm's lawStudy the relationship between voltage, current and resistance. Local

Electrical engineeringElectrical powerCalculate electrical power from voltage and current. Local

Electrical engineeringSeries & parallel resistanceStudy equivalent resistance for simple resistor networks. Local

Mechanics & machinesForce, work & powerCalculate basic mechanics quantities from SI inputs. Local

Fluids & materialsDensityCalculate density from mass and volume. Local

Fluids & materialsPressureCalculate pressure from force and area. Local

Fluids & materialsHydrostatic pressureStudy p = ρgh using SI units. Local

Fluids & materialsReynolds numberCalculate Reynolds number from basic flow variables. Local

Fluids & materialsStress & strainStudy normal stress, strain and Young’s modulus. Local

Thermal & chemistryHeat energyStudy Q = mcΔT with SI units. Local

Thermal & chemistryIdeal gas lawCalculate pressure from PV = nRT using SI units. Local

Mechanics & machinesWave & frequencyFind period and wavelength from frequency and wave speed. Local

Mechanics & machinesTorqueStudy τ = Fr sin(θ). Local

Mechanics & machinesMechanical energyCalculate kinetic and gravitational potential energy. Local

Fluids & materialsFlow rateStudy Q = Av from area and average velocity. Local

Fluids & materialsContinuity equationStudy A₁v₁ = A₂v₂ for incompressible flow. Local

Mechanics & machinesHooke's lawStudy F = kx for an ideal linear spring. Local

Mechanics & machinesRPM & angular speedConvert rotational speed between rpm and rad/s. Local

Mechanics & machinesTorque, power & RPMStudy P = τω for rotating systems. Local

Mechanics & machinesEfficiencyCalculate efficiency from useful output and input energy or power. Local

Electrical engineeringFrequency & periodConvert between frequency and period using f = 1/T. Local

Electrical engineeringCapacitor energyStudy E = ½CV² for an ideal capacitor. Local

Thermal & chemistryMolarityCalculate molarity from moles of solute and solution volume. Local

Thermal & chemistryDilution equationStudy C₁V₁ = C₂V₂ for simple dilution problems. Local

Thermal & chemistrypH from hydrogen ionsCalculate pH from hydrogen-ion concentration. Local

Fluids & materialsSpecific gravityCalculate specific gravity from material and reference density. Local

Structural engineeringSimply supported beamFind reactions, max shear and max moment step by step, for a point load or a uniform load. Local

Structural engineeringCivil Engineering Formula SolverSearch 190 civil engineering formulas and solve study problems with full working steps. Local

Highway & transportationStopping sight distanceWork through the AASHTO stopping-sight-distance formula step by step from speed, grade and reaction time. Local

ConvertLength converterConvert mm, cm, m, km, inches, feet and miles. Local

ConvertWeight converterConvert grams, kilograms, pounds and ounces. Local

ConvertTemperature converterConvert Celsius, Fahrenheit and Kelvin. Local

ConvertData size converterConvert bytes, KB, MB, GB and TB. Local

ConvertUnix timestampConvert dates to Unix time and back. Local

DeveloperJSON formatterFormat, minify and validate JSON. Local

DeveloperBase64 encode / decodeEncode or decode plain text. Local

DeveloperURL encode / decodeEncode or decode URL-safe text. Local

DeveloperUUID generatorGenerate random UUID v4 values. Local

SecuritySHA-256 hashHash text locally in your browser. Local

DeveloperJWT decoderDecode JWT header and payload locally. Local

DeveloperCurrent timestampGet Unix timestamps in seconds and milliseconds. Local

DeveloperHTML escape / unescapeEscape or restore HTML entities. Local

SEO / WebUTM builderBuild campaign URLs without mistakes. Local

SEO / WebMeta tag generatorGenerate a clean title and description snippet. Local

SEO / WebRobots.txt builderCreate a simple robots.txt file. Local

SecurityPassword generatorCreate a strong random password locally. Local

SecurityPassword strengthCheck basic password strength locally. Local

SecurityFile checksumGenerate a SHA-256 checksum for any file locally. Local

GeneratorsQR code generatorGenerate a QR code from text or a URL. Local

GeneratorsRandom numberGenerate a random number inside a range. Local

GeneratorsRandom pickerPick one item from a list. Local