Free Online Tools: Calculators, Converters & Developer Utilities
Fast, private calculators, converters, and developer utilities — everything runs in your browser, nothing leaves your device.
Most Popular Tools
SIP Calculator
Calculate returns on your monthly SIP investment with interactive charts.
NewDiscount Calculator
Calculate sale price, find discount percentage, or reverse to original price.
NewPercentage Calculator
Solve any percentage problem — increase, decrease, difference, and more.
BMI Calculator
Check your Body Mass Index instantly with height and weight.
NewDate Calculator
Days between dates, add/subtract days, business days. Covers date duration and day calculator.
Age Calculator
How old am I? Find your exact age in years, months, and days from your date of birth.
NewAge Difference Calculator
Find the exact age gap between two people — who is older and by how much.
NewChronological Age Calculator
Calculate exact chronological age for educational and pediatric assessments.
NewGrade Calculator
Calculate final grade from weighted assignments. GPA calculator included.
NewTip Calculator
Calculate tip amount and split the bill between any number of people.
NewMortgage Calculator
Calculate monthly mortgage payment with down payment, rate, and full amortization schedule.
NewLoan Calculator
Calculate monthly payment, total interest, and amortization schedule for any loan.
NewInvoice Generator
Create professional invoices free — logo, line items, tax, bank details, PDF download.
Loan EMI Calculator
Calculate monthly EMI for home, car, or personal loans.
GST Calculator
Calculate GST at 5%, 12%, 18%, or 28% with CGST and SGST split.
NewFD Calculator
Calculate fixed deposit maturity amount and interest earned.
FLAMES Calculator
Find your relationship — Friends, Lovers, Affectionate, Marriage, Enemies, or Siblings!
FD Calculator
Calculate fixed deposit maturity amount and interest with compound interest options.
NewJSON Formatter
Format, validate, and minify JSON with syntax highlighting.
Base64 Encoder
Encode text to Base64 format instantly in your browser.
Base64 Decoder
Decode Base64 strings back to plain text.
NewQR Code Generator
Create QR codes for URLs, text, email, phone, WiFi — download as PNG free.
NewScientific Calculator
Full scientific calculator — sin/cos/tan, log, ln, powers, roots, memory, and more.
NewBinary to Decimal
Convert binary to decimal, hex, and octal. Step-by-step working shown.
NewHEX to RGB Converter
Convert HEX color codes to RGB, HSL and CSS values instantly.
NewColor Picker & Converter
Pick colors and convert between HEX, RGB, and HSL formats.
NewCSS Gradient Generator
Create linear, radial, and conic CSS gradients. 12 presets, copy CSS instantly.
NewMarkdown to HTML
Convert Markdown text to clean HTML with live preview.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words.
NewCharacter Counter
Count characters with platform limits for Twitter, Instagram, LinkedIn, SMS.
NewNumber to Words
Convert any amount to English words. Indian (lakhs/crores) and international formats.
NewText Repeater
Repeat any word or phrase any number of times with custom separator.
NewRandom Word Generator
Generate random nouns, verbs, adjectives. Filter by length and starting letter.
NewOnline Notepad
Auto-saving online notepad — no login, no account. Download as .txt.
NewTyping Speed Test
Test your WPM and accuracy. 30s, 1min, and 3min tests with 3 difficulty levels.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
NewCapitalize My Title
Capitalize titles correctly using APA, Chicago, MLA, or AP style rules.
NewUppercase to Lowercase
Convert ALL CAPS text to lowercase, sentence case, or title case instantly.
NewCase Converter
Convert text to uppercase, lowercase, title case, or sentence case.
NewText Diff Checker
Compare two texts side by side and see additions, deletions, and changes.
ASCII to Text
Convert ASCII character codes to readable text.
Text to ASCII
Convert readable text to ASCII character codes.
NewROI Calculator
Calculate return on investment, net profit, and annualised ROI.
Text to ASCII
Convert readable text to ASCII character codes.
ASCII to Text
Convert ASCII character codes to readable text.
Password Generator
Generate strong, random passwords with custom length and characters.
AES Encryption
Encrypt and decrypt text using AES-256 encryption.
URL Encoder / Decoder
Encode special characters for URLs or decode percent-encoded strings.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any text.
Regex Tester
Test regex patterns with real-time matching, highlighting, and capture groups.
Unix Timestamp Converter
Convert between Unix epoch time and human-readable dates.
NewHTML Entity Encoder
Encode special characters to HTML entities or decode them back.
NewCSS Minifier
Compress CSS by removing whitespace, comments, and unnecessary characters.
NewJavaScript Minifier
Compress JavaScript by removing whitespace and comments.
NewImage to Base64
Convert images to Base64 data URIs for HTML, CSS, and JavaScript.
NewRandom Number Generator
Generate random numbers in any range — single, batch, or unique lists.
NewOnline Timer
Countdown timer with alarm. Presets for 1, 5, 10, 15, 25, 30, 60 min. Perfect for Pomodoro.
NewStopwatch & Timer
Online stopwatch with lap tracking and countdown timer.
Domain Age Checker
Check how old any domain is with registration date details.
NewImage Compressor
Compress JPEG and PNG photos to reduce file size. Quality slider, before/after comparison.
NewWord to PDF
Convert .docx Word documents to PDF free in your browser. No server upload.
JPG to PDF
Convert JPG images to PDF files — fast, free, and private.
NewNumber Base Converter
Convert between binary, octal, decimal, and hexadecimal instantly.
NewCM to Inches
Convert centimetres to inches instantly. Includes height table and reverse converter.
NewKG to LBS
Convert kilograms to pounds and lbs to kg. Reference table for body weight included.
NewRoman Numerals
Convert numbers to Roman numerals and back. Full chart, reference table, and rules.
NewUnit Converter
Convert length, weight, temperature, area, volume, speed, and data units.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
Showing all tools · New tools added every week based on what people actually search for.
Your Digital Toolbox — Free, Fast, and Private
ToolifyMe is a collection of free online tools built for students, developers, professionals, and anyone who needs quick answers without signing up or installing software. Every tool runs entirely in your browser — your data never leaves your device.
What Can You Do Here?
From financial planning to software development, ToolifyMe covers the tools people search for most. Use the SIP calculator to project mutual fund returns, the GST calculator to split tax amounts for invoices, or the EMI calculator to plan your next loan. Developers can format JSON, encode Base64, generate lorem ipsum text, or pick colours with HEX-to-RGB conversion. Students and writers can count words, convert text cases, or generate strong passwords for their accounts.
Why ToolifyMe?
Most tool websites are slow, cluttered with ads, and built on server-side processing that uploads your data to unknown servers. ToolifyMe is different: every calculation, conversion, and formatting operation happens right in your browser using JavaScript. Nothing is uploaded, nothing is stored, and nothing is tracked. The site loads fast on any connection because there are no heavy frameworks or server round-trips — just clean, lightweight HTML and JavaScript.
Always Growing
New tools are added regularly based on what people actually search for and need. If you have a suggestion for a tool you'd like to see, reach out through the contact page — the most-requested tools get built first.