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.
NewPercentage Calculator
Solve any percentage problem — increase, decrease, difference, and more.
BMI Calculator
Check your Body Mass Index instantly with height and weight.
Age Calculator
Find your exact age in years, months, and days from your date of birth.
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.
NewColor Picker & Converter
Pick colors and convert between HEX, RGB, and HSL formats.
NewMarkdown to HTML
Convert Markdown text to clean HTML with live preview.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
NewCapitalize My Title
Capitalize titles correctly using APA, Chicago, MLA, or AP style rules.
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.
NewStopwatch & Timer
Online stopwatch with lap tracking and countdown timer.
Domain Age Checker
Check how old any domain is with registration date details.
JPG to PDF
Convert JPG images to PDF files — fast, free, and private.
NewNumber Base Converter
Convert between binary, octal, decimal, and hexadecimal instantly.
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.
Frequently Asked Questions
Yes, all tools on ToolifyMe are 100% free to use with no hidden charges or premium tiers.
No, you can use all tools instantly without signing up or providing any personal information.
Yes, all tools run entirely in your browser using JavaScript. Nothing is uploaded to our servers, and nothing is stored or tracked.
Yes, all tools are fully responsive and work perfectly on phones, tablets, and desktops.
We add new tools regularly based on user requests and search demand. Check back weekly for updates!