Free Online Developer & Productivity Tools
80+ fast, free, and privacy-friendly utilities for developers, designers, and everyone in between.
Convert JSON, XML, CSV • Resize & compress images • Generate QR codes & passwords • Encode, hash, encrypt • And much more — all in your browser.
Data Converters
Batch Convert (Files to PDF)
Convert multiple files (text, images, and more) to PDF in bulk and download as a single PDF.
Try Batch Convert (Files to PDF)Number Base Converter
Convert numbers between binary, decimal, hex, and octal.
Try Number Base ConverterPDF & Image Tools
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor and presets.
Try CSS Gradient GeneratorColor Blindness Simulator
Preview how colors appear to people with different types of color vision deficiency.
Try Color Blindness SimulatorGenerators
Lorem Ipsum Generator
Generate placeholder text for design and development.
Try Lorem Ipsum Generator.gitignore Generator
Generate .gitignore files for different project types and IDEs.
Try .gitignore GeneratorCSP Generator
Generate secure Content-Security-Policy headers for your web application.
Try CSP GeneratorDate & Time
Network & API
Subnet Calculator
Calculate IPv4 subnet information, network ranges, and subdivide networks.
Try Subnet CalculatorSecurity
Password Strength Checker
Check the strength of your passwords instantly.
Try Password Strength CheckerDeveloper Tools
Text Case Converter
Convert text between different cases (upper, lower, title, etc.).
Try Text Case ConverterJWT Encoder / Decoder
Encode, decode, verify, and inspect JSON Web Tokens entirely in your browser.
Try JWT Encoder / DecoderJSON to C# Class Generator
Generate C# classes from JSON data automatically.
Try JSON to C# Class GeneratorHTML to JSX Converter
Convert HTML to React JSX with automatic attribute conversion.
Try HTML to JSX ConverterMarkdown Table Generator
Generate Markdown tables from data quickly and easily.
Try Markdown Table GeneratorFake Data Generator
Generate realistic fake data for testing, development, and prototyping.
Try Fake Data GeneratorAI Tools
AI Tone Rewriter
Rewrite text in different tones — professional, friendly, casual, and more.
Try AI Tone RewriterFinance & Banking
SWIFT MT Parser
Parse and analyze SWIFT MT banking messages to inspect headers, fields, and transaction details.
Try SWIFT MT ParserIBAN Validator
Validate and parse IBAN numbers — extract country code, bank code, and check digits.
Try IBAN ValidatorLoan / EMI Calculator
Calculate monthly loan payments, total interest, and view a full amortization schedule.
Try Loan / EMI CalculatorCredit Card Validator
Validate credit card numbers using the Luhn algorithm and detect card networks.
Try Credit Card ValidatorCompound Interest Calculator
Calculate compound interest with customizable principal, rate, time, and compounding frequency.
Try Compound Interest CalculatorInvoice Generator
Generate professional PDF invoices with itemized line items, tax, and discounts.
Try Invoice Generator