Online tools · IN
4devskit
Generate and validate Indian documents in seconds. Fast, free, and 100% in your browser — ideal for development and testing.
68 generators16 validators
About us
4devskit is a free online toolkit to generate and validate test data in the browser.
4devskit (4devs kit) gathers country-specific generators and validators plus text, math, date, and encoding utilities.
Generators
- Aadhaar GeneratorGenerate Aadhaar numbers with a valid Verhoeff check digit.
- PAN GeneratorGenerate Permanent Account Numbers in the standard format.
- GSTIN GeneratorGenerate GST identification numbers with checksum.
- PIN Code GeneratorGenerate 6-digit Indian PIN codes.
- IFSC GeneratorGenerate IFSC bank codes for forms and mocks.
- TAN GeneratorGenerate Tax Deduction Account Numbers for India QA.
- Driving License GeneratorGenerate Indian driving licence numbers in standard format.
- Voter ID GeneratorGenerate EPIC voter ID numbers for form testing.
- Passport GeneratorGenerate fictional Indian passport numbers.
- UPI ID GeneratorGenerate UPI payment handles for checkout mocks.
- CIN GeneratorGenerate Corporate Identification Numbers for MCA forms.
- ABHA GeneratorGenerate 14-digit ABHA health IDs for testing.
- Phone GeneratorGenerate Indian mobile numbers starting with 6–9.
- Vehicle Number GeneratorGenerate Indian vehicle registration plates.
- Person GeneratorGenerate fictional Indian names, phones, and addresses.
- Credit Card GeneratorGenerate fictional cards that pass the Luhn check.
- Password GeneratorGenerate strong passwords with composition options.
- Random Number GeneratorDraw random numbers with range and quantity controls.
- Lorem Ipsum GeneratorGenerate placeholder text for layouts and mockups.
- Fancy Text GeneratorConvert text into Unicode fancy styles for bios, titles, and mock content.
- Symbols to CopyCopy arrows, currency signs, and special characters for UI and content work.
Validators
- Aadhaar ValidatorValidate Aadhaar with the Verhoeff algorithm.
- PAN ValidatorValidate Permanent Account Number format.
- GSTIN ValidatorValidate GSTIN format and checksum.
- PIN Code ValidatorValidate 6-digit Indian PIN codes.
- IFSC ValidatorValidate IFSC bank code format.
- TAN ValidatorValidate Tax Deduction Account Number format.
- Driving License ValidatorValidate Indian driving licence format.
- Voter ID ValidatorValidate EPIC voter ID format.
- Passport ValidatorValidate Indian passport number format.
- UPI ID ValidatorValidate UPI handle format.
- CIN ValidatorValidate Corporate Identification Number format.
- ABHA ValidatorValidate 14-digit ABHA format.
- Phone ValidatorValidate Indian mobile number patterns.
- Vehicle Number ValidatorValidate Indian vehicle registration format.
- Credit Card ValidatorValidate card numbers with the Luhn algorithm and detect the card brand.
- Password Strength CheckerRate password strength as weak, medium, or strong for signup and QA flows.
String functions
- Spell CheckerCheck spelling with the browser’s built-in dictionary.
- Sort AlphabeticallySort lines of text alphabetically.
- Character CounterCount characters, words, and lines.
- Word Occurrence CounterCount how often a word appears.
- Text to HTMLEscape text to HTML in the browser.
- Truncate TextLimit text length with an ellipsis.
- Split StringSplit text by a separator.
- Character InfoUnicode, decimal, hex, and UTF-8 for a character.
- Reverse TextReverse character order.
- Case ConverterConvert upper, lower, title, and sentence case.
- Number to WordsWrite integers in English words.
- Remove AccentsStrip accents and diacritics.
- Replace NewlinesRemove or replace line breaks.
Mathematics
- Roman Numeral ConverterConvert decimals and roman numerals.
- Factor NumberFactorize into primes.
- GCD CalculatorCompute the greatest common divisor.
- LCM CalculatorCompute the least common multiple.
- Percentage CalculatorCalculate percentages quickly.
- Rule of ThreeSolve simple proportions.
- Division RemainderCompute quotient and remainder.
Area calculation
- Circle AreaCalculate the area of a circle.
- Square AreaCalculate the area of a square.
- Rectangle AreaCalculate the area of a rectangle.
- Triangle AreaCalculate the area of a triangle.
- Pentagon AreaCalculate regular pentagon area.
- Hexagon AreaCalculate regular hexagon area.
- Regular Polygon AreaCalculate regular polygon area.
- Rhombus AreaCalculate rhombus area from diagonals.
- Trapezoid AreaCalculate trapezoid area.
- Parallelogram AreaCalculate parallelogram area.
- Ellipse AreaCalculate ellipse area.
- Annulus AreaCalculate circular ring area.
- Circular Sector AreaCalculate circular sector area.