Free Online Tools for Developers and Everyday Use
Fast, privacy-first, no-login online tools platform. All processing happens in your browser.
Developer Tools
JSON Formatter
Format and validate JSON data with syntax highlighting and error detection. Free online JSON formatter tool.
YAML to JSON Converter
Convert YAML files to JSON format instantly. Free online YAML to JSON converter tool.
Base64 Encode Decode
Encode text to Base64 or decode Base64 to text. Free online Base64 encoder and decoder tool.
Hash Generator
Generate MD5, SHA1, SHA256, and SHA512 hashes from text. Free online hash generator tool.
UUID Generator
Generate UUID v4 identifiers. Generate single or bulk UUIDs instantly. Free online UUID generator.
Regex Tester
Test regular expressions with live matching and highlighting. Free online regex tester tool.
CSV to JSON Converter
Convert CSV files to JSON format instantly. Free online CSV to JSON converter tool.
SQL Formatter
Format SQL queries with proper indentation and syntax highlighting. Free online SQL formatter.
Everyday Tools
Word Counter
Count words, characters, sentences, and paragraphs in your text. Free online word counter tool.
Case Converter
Convert text between different cases: uppercase, lowercase, title case, camelCase, snake_case, kebab-case. Free online case converter.
Remove Line Breaks
Remove or replace line breaks in text. Clean up text formatting instantly. Free online line break remover.
Text Diff Checker
Compare two texts and highlight differences. Find changes between text versions. Free online text diff tool.
Markdown Previewer
Preview markdown as HTML in real-time. Render markdown syntax instantly. Free online markdown previewer.
EMI Calculator
Calculate Equated Monthly Installment (EMI) for loans. Calculate loan EMI, total interest, and amortization schedule. Free online EMI calculator.
GST Calculator
Calculate GST (Goods and Services Tax) amount and total. Calculate GST inclusive or exclusive prices. Free online GST calculator.
Percentage Calculator
Calculate percentages: percent of a number, percent change, percent increase or decrease. Free online percentage calculator.
Income Tax Calculator India
Calculate income tax for India. Estimate tax liability using current tax slabs and deductions. Free online income tax calculator India.
Password Generator
Generate strong, secure passwords with customizable options. Create random passwords with length and character set options. Free online password generator.
QR Code Generator
Generate QR codes from text or URLs. Download QR codes as PNG images. Free online QR code generator.
Unit Converter
Convert between different units: length, weight, temperature. Convert meters to feet, kilograms to pounds, Celsius to Fahrenheit. Free online unit converter.