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Create QR codes for links, text, contact cards, and Wi-Fi details with downloadable output for print or digital use.

Free Unix timestamp to date converter - Convert epoch time to human-readable date and time instantly. Supports Unix timestamp, milliseconds, and seconds. Perfect for developers, system administrators, and data analysts. No installation needed, works offline.

Free date to Unix timestamp converter - Convert any date and time to epoch timestamp (Unix time). Supports multiple timezones and date formats. Essential tool for developers, programmers, and database administrators. Instant conversion, 100% accurate.

Free Base64 encoder and decoder online - Encode text to Base64 or decode Base64 to text instantly. Supports images, strings, and binary data. Perfect for developers, API testing, and data encoding. Fast, secure, and works completely offline in your browser.

Free text case converter online - Convert text to uppercase, lowercase, sentence case, title case, camelCase, PascalCase, snake_case, kebab-case, and more. Transform text formatting instantly. Perfect for coding, writing, and text formatting. No limits, completely free.

Free UUID generator online - Generate unique UUIDs (Universally Unique Identifiers) v4 instantly. Create random UUIDs for databases, APIs, and unique identifiers. Perfect for developers, programmers, and system designers. Cryptographically secure, RFC 4122 compliant.

Free online color picker and converter - Pick colors from images, convert between HEX, RGB, HSL, HSV, CMYK formats. Extract color palettes, get color codes, and find complementary colors. Perfect for web design, graphic design, and developers. Professional color tool, 100% free.

Free URL encoder and decoder online - Encode URLs to percent-encoded format or decode URL-encoded strings instantly. Perfect for web development, API testing, and URL manipulation. Supports special characters, spaces, and international characters. Fast and secure.

Count words, characters, sentences, and reading time instantly for writing, publishing, and content limits.

Free SHA256 hash generator online - Generate SHA-256 cryptographic hash from any text or file instantly. Secure one-way encryption, perfect for passwords, data integrity, and security. Used by Bitcoin, SSL certificates, and secure systems. Fast, reliable, and completely free.

Format and validate JSON for easier debugging, API testing, and configuration review.

Free HTML minifier online - Minify HTML code by removing whitespace, comments, and unnecessary characters. Reduce file size by up to 70% for faster page loads. Perfect for web developers, SEO optimization, and performance improvement. Instant minification, no quality loss.

Free Lorem Ipsum generator online - Generate placeholder text for web design, typography, and layout testing. Customize word count, paragraphs, and text length. Perfect for designers, developers, and content creators. Multiple variations, instant generation, completely free.

Free character counter online - Count characters with and without spaces, words, lines, paragraphs, and reading time instantly. Perfect for Twitter, social media, essays, and content writing. Real-time counting, character limit alerts, detailed statistics. No registration needed.

Free MD5 hash generator online - Generate MD5 cryptographic hash from any text or file instantly. One-way encryption for data integrity, checksums, and verification. Perfect for developers, system administrators, and security. Fast, reliable, completely free hash tool.

Free duplicate line remover online - Remove duplicate lines from text while preserving order instantly. Perfect for cleaning data, removing duplicates from lists, and text processing. Case-sensitive and case-insensitive options. Fast processing, no file size limits, completely free.

Free text sorter online - Sort lines of text alphabetically (A-Z, Z-A) or numerically (ascending, descending) instantly. Perfect for organizing lists, data cleaning, and text processing. Remove duplicates option, case-sensitive sorting. Fast, reliable, completely free tool.

Free text diff checker online - Compare two texts and find differences instantly. Highlight additions, deletions, and changes with side-by-side comparison. Perfect for code reviews, document comparison, plagiarism detection, and text analysis. Fast, accurate, completely free diff tool.

Free text rephraser online - Rephrase and rewrite text in different ways while maintaining original meaning instantly. Perfect for content creation, academic writing, avoiding plagiarism, and improving readability. Multiple variations, instant results, completely free. No AI detection.

Free AI to human text converter online - Convert AI-written text to human-like writing instantly. Rewrite AI content to sound natural, avoid AI detection, and pass AI detection tests. Get human-likeness score, improve readability. Perfect for content creators, students, writers. 100% free.

Analyze text and estimate AI-likelihood as a review signal, with human judgment required for final decisions.

Free JWT decoder online - Decode and view JWT token payload, header, and signature information instantly. Perfect for developers, API testing, and debugging authentication tokens. JSON formatted output, validation, and token analysis. Fast, secure, completely free JWT tool.

Free URL slug generator online - Generate SEO-friendly URL slugs from text instantly. Convert titles to URL-safe slugs with proper formatting. Perfect for websites, blogs, and SEO optimization. Customizable separators, lowercase conversion, special character handling. Completely free tool.

Free random string generator online - Generate random strings for passwords, tokens, IDs, and unique identifiers instantly. Customizable length, character sets (letters, numbers, symbols), and patterns. Perfect for developers, security, and testing. Cryptographically secure, completely free.

Free CSV to JSON converter online - Convert CSV data to JSON format instantly. Perfect for data transformation, API integration, and programming. Supports headers, nested data, and large files. Fast conversion, error detection, completely free. No registration needed.

Free JSON to CSV converter online - Convert JSON data to CSV format instantly. Perfect for spreadsheet import, data analysis, and Excel compatibility. Supports nested JSON, arrays, and complex structures. Fast conversion, customizable output, completely free. No limits.

Free hex ASCII binary converter online - Convert between hexadecimal, ASCII text, and binary formats instantly. Perfect for debugging, encoding, data conversion, and programming. Supports all conversion directions, fast processing, completely free. Essential developer tool.

Measure typing speed and accuracy with real-time feedback to improve consistency and keyboard confidence.

Evaluate password strength and common risk patterns, then apply practical suggestions for stronger account protection.

Calculate IPv4 subnet ranges, host capacity, broadcast address, and CIDR details for network planning.

Free DNS lookup tool online - Look up DNS records for any domain instantly. Check A, AAAA, MX, CNAME, TXT, NS, SOA, and PTR records. Perfect for network troubleshooting, domain verification, and DNS analysis. Fast, accurate, completely free DNS query tool.

Free HTTP header checker online - Check HTTP headers of any website instantly. View response headers, status codes, security headers, and server information. Perfect for web development, security analysis, and debugging. Fast, detailed analysis, completely free tool.

Free ping tester online - Test network connectivity by pinging any host or IP address instantly. Measure latency, packet loss, and response times. Perfect for network troubleshooting, server monitoring, and connectivity testing. Real-time results, completely free ping tool.

Free port scanner online - Scan open ports on any host instantly. Check which ports are open, closed, or filtered. Perfect for network security, server administration, and firewall testing. Custom port ranges, fast scanning, completely free. Essential network tool.

Free cron expression parser online - Parse and validate cron expressions instantly. See when your cron job will run next, understand cron syntax, and test schedules. Perfect for system administrators, developers, and automation. Human-readable output, completely free tool.

Free port checker online - Check if a specific port is open on any IP address or hostname instantly. Test port connectivity, firewall rules, and network accessibility. Perfect for network troubleshooting, server administration, and security testing. Fast, accurate, completely free port tool.

Free internet speed test online - Test your internet connection speed instantly. Measure download speed, upload speed, ping, and latency. Perfect for checking broadband performance, WiFi speed, and network quality. Real-time results, accurate measurements, completely free. Essential network tool.

Compress JPG, PNG, and WebP images to reduce file size while preserving readable visual quality for web delivery.

Free image resizer online - Resize images to any dimensions instantly. Resize JPG, PNG, GIF, WebP with custom width and height. Maintain aspect ratio, crop images, and batch resize. Perfect for social media, websites, and print. Preset sizes for Instagram, Facebook, Twitter included.

Free WebP converter online - Convert JPG, PNG, GIF to WebP format instantly. Reduce image size by 25-35% with Google-recommended compression. Perfect for websites, SEO optimization, and faster page loads. Batch conversion, quality control, lossless option. 100% free, no signup.

Free PNG to JPG converter online - Convert PNG images to JPG format with adjustable quality settings. Reduce file size while maintaining image quality. Perfect for websites, email, and storage optimization. Batch conversion, instant download, completely free image converter.

Free JPG to PNG converter online - Convert JPG/JPEG images to PNG format with lossless quality. Perfect for images requiring transparency, graphics, and high quality. Batch conversion, instant processing, completely free. No file size limits, no registration required.

Free image color palette extractor online - Extract dominant colors and create beautiful color palettes from any image. Get HEX, RGB, HSL color codes instantly. Perfect for designers, artists, and branding. Extract up to 10 colors, export palettes, completely free.

Free image metadata viewer online - View EXIF data, camera settings, GPS location, dimensions, file size, and all metadata from images instantly. Perfect for photographers, digital forensics, and image analysis. Supports JPG, PNG, TIFF, and RAW formats. 100% free tool.

Free WebP to PNG converter online - Convert WebP images to PNG format with lossless quality instantly. Perfect for images requiring transparency and high quality. Batch conversion, instant processing, completely free. No file size limits, no registration required.

Free WebP to JPG converter online - Convert WebP images to JPG format with adjustable quality settings instantly. Reduce file size while maintaining image quality. Perfect for compatibility and storage optimization. Batch conversion, instant download, completely free image converter.

Free PDF splitter online - Split PDF files into multiple smaller PDFs by page ranges or individual pages instantly. Perfect for organizing documents, extracting pages, and managing large PDFs. Batch splitting, custom page selection, instant download. Completely free, no file size limits.

Merge multiple PDF files into one ordered document for sharing, archiving, or submissions.

Free PDF to image converter online - Convert PDF pages to images (PNG, JPG, WebP) instantly. Extract pages as high-quality images, perfect for presentations, websites, and graphics. Batch conversion, custom DPI, instant download. Completely free, no file size limits.

Free favicon converter online - Convert JPG or PNG images to favicon format instantly. Generate multiple sizes (16x16, 32x32, 48x48) for your website. Perfect for web development, SEO, and branding. Batch conversion, instant download, completely free. Essential web development tool.

Free background remover online - Remove backgrounds from images instantly using AI-powered technology. Upload images or use webcam for accurate, professional background removal. Perfect for product photos, portraits, and graphic design. High-quality results, instant processing, completely free. No signup needed.

Convert PDF content into editable DOCX format for revisions and collaborative editing.

Free file encryptor online - Encrypt PDF, images, and other files with password protection instantly. Secure your files with AES encryption. Supports encryption and decryption. Perfect for file security, privacy protection, and secure file sharing. Military-grade encryption, completely free.

Convert PNG and JPG images into high-quality SVG vector graphics online instantly. Fast, scalable, lightweight, and perfect for logos, web design, printing, Cricut, and responsive websites.

Free percentage calculator online - Calculate percentages, percentage increase, decrease, percentage of a number, and percentage difference instantly. Perfect for discounts, taxes, tips, grades, and business calculations. Multiple calculation modes, step-by-step solutions, completely free.

Free unit converter online - Convert between weight, temperature, distance, speed, volume, area, time, and energy units instantly. Supports metric, imperial, and US customary units. Perfect for students, engineers, travelers, and daily conversions. 100+ unit types, accurate results.

Calculate age differences across years, months, days, and more using precise date inputs.

Compute discount amount, final price, and savings to compare offers accurately.

Free GST calculator online - Calculate GST (Goods and Services Tax) on products and services instantly. Perfect for India, Australia, Canada, and other GST countries. Calculate tax amount, total price, and reverse GST. Multiple tax rates, accurate calculations, completely free.

Estimate monthly EMI, total repayment, and interest for loan planning scenarios.

Free loan calculator online - Calculate loan payments, interest rates, total interest, and amortization schedule instantly. Perfect for home loans, car loans, personal loans, and mortgage planning. Multiple loan types, detailed breakdown, completely free. Essential financial tool.

Test MQTT publish and subscribe flows from the browser for IoT debugging and quick integration checks.

Free sensor unit converter online - Convert sensor readings between different units instantly. Temperature (Celsius, Fahrenheit, Kelvin), pressure, humidity, and more. Perfect for IoT developers, engineers, and data analysis. Multiple sensor types, accurate conversions, completely free.

Free Modbus encoder decoder online - Encode and decode Modbus RTU/TCP packets instantly. Convert between hex, binary, and structured formats. Perfect for industrial automation, PLC programming, and Modbus communication. Fast, accurate, completely free Modbus tool.

Free serial data parser online - Parse and simulate serial data streams instantly. Convert between hex, ASCII, binary, and structured formats. Perfect for embedded systems, IoT development, and serial communication debugging. Real-time parsing, completely free tool.

Free IoT JSON formatter online - Format and validate IoT JSON payloads instantly. Structure sensor data, device telemetry, and MQTT messages. Perfect for IoT development, data analysis, and API integration. Syntax highlighting, validation, completely free IoT tool.

Look up BLE service and characteristic UUIDs to identify device capabilities faster.

Free OPC-UA NodeID generator online - Generate and parse OPC-UA NodeIDs instantly. Convert between numeric, string, GUID, and byte string formats. Perfect for industrial automation, SCADA systems, and OPC-UA development. Fast, accurate, completely free OPC-UA tool.

Free Ohm's Law calculator online - Calculate voltage, current, resistance, and power using Ohm's Law instantly. Perfect for electronics, electrical engineering, and circuit design. Multiple calculation modes, step-by-step solutions, completely free. Essential tool for engineers and students.

Free resistor color code decoder online - Decode resistor color bands to get resistance value, tolerance, and temperature coefficient instantly. Supports 4, 5, and 6-band resistors. Perfect for electronics, circuit design, and component identification. Visual guide, completely free tool.

Free battery life calculator online - Calculate battery runtime based on capacity, current draw, and voltage instantly. Perfect for IoT devices, wearables, portable electronics, and battery selection. Accurate calculations, multiple battery types, completely free. Essential IoT tool.

Free RF antenna frequency calculator online - Calculate frequency, wavelength, and antenna length instantly. Perfect for RF design, wireless communication, IoT antenna sizing, and radio frequency planning. Multiple frequency bands, accurate calculations, completely free. Essential RF tool.

Free PCB trace width calculator online - Calculate PCB trace width based on current, temperature rise, and copper thickness instantly. Perfect for PCB design, power routing, and circuit board layout. IPC-2221 compliant, accurate calculations, completely free. Essential PCB design tool.

Free LED resistor calculator online - Calculate the resistor value needed for LEDs based on supply voltage, forward voltage, and current instantly. Perfect for LED circuit design, Arduino projects, and electronics. Multiple LED configurations, accurate calculations, completely free. Essential LED tool.

Free voltage divider designer online - Design voltage divider circuits instantly. Calculate output voltage, resistor values, current, and power dissipation. Perfect for analog circuit design, sensor interfacing, and voltage regulation. Step-by-step design, completely free. Essential electronics tool.

Free power consumption estimator online - Estimate power consumption and energy costs instantly. Calculate daily, monthly, and yearly electricity costs based on device power ratings. Perfect for energy planning, cost estimation, and device selection. Accurate calculations, completely free. Essential energy tool.

Free CoAP packet builder online - Build CoAP (Constrained Application Protocol) packets instantly. Create CoAP messages with headers, tokens, options, and payloads for IoT communication. Perfect for IoT development, M2M communication, and CoAP testing. Fast, accurate, completely free CoAP tool.

Free PLC timer calculator online - Calculate PLC timer values for TON (Timer On Delay), TOF (Timer Off Delay), and RTO (Retentive Timer On) instantly. Perfect for industrial automation programming, ladder logic, and PLC development. Multiple timer types, accurate calculations, completely free.

Free RPM to linear speed calculator online - Convert rotational speed (RPM) to linear speed instantly. Calculate linear velocity based on diameter, radius, or circumference. Perfect for motor calculations, conveyor systems, and mechanical engineering. Accurate conversions, completely free. Essential engineering tool.

Free conveyor speed calculator online - Calculate conveyor belt speed, throughput, and capacity instantly. Perfect for material handling, production line design, and industrial automation. Multiple calculation modes, accurate results, completely free. Essential manufacturing and logistics tool.

Free sensor debounce calculator online - Calculate debounce time for proximity sensors and PLC input filtering instantly. Prevent false triggers and ensure reliable sensor readings in industrial applications. Perfect for automation, sensor design, and noise filtering. Accurate calculations, completely free.

Free pneumatic cylinder force calculator online - Calculate pneumatic cylinder force based on pressure, cylinder diameter, and efficiency instantly. Perfect for pneumatic system design, cylinder selection, and automation. Accurate calculations, multiple cylinder types, completely free. Essential pneumatic tool.

Free industrial motor power calculator online - Calculate motor power, torque, efficiency, and current instantly. Perfect for motor selection, sizing, and performance analysis in industrial applications. Multiple motor types, accurate calculations, completely free. Essential industrial automation tool.