Documentation
Learn how to use our tools effectively
Welcome to NextUtils Documentation
NextUtils provides a comprehensive collection of free online tools for developers, designers, and professionals. All tools are designed to be fast, secure, and easy to use.
Converters
Transform data between different formats and units
Base64 Converter
Encode and decode Base64 strings, files, and images. Convert text to Base64 format or decode Base64 back to original content with our free online tool.
Binary Converter
Convert between binary, decimal, hexadecimal, and octal number systems. Free online tool for developers and students to perform number base conversions with precision.
Unit Converter
Convert between different units of measurement including length, weight, volume, temperature, and more. Comprehensive unit converter for everyday calculations and professional use.
Color Converter
Convert between color formats including RGB, HEX, HSL, CMYK, and more. Professional color converter with color names, brightness analysis, and contrast ratios for designers and developers.
Timestamp Converter
Convert Unix timestamps to readable dates and vice versa. Support for multiple timestamp formats, timezone conversions, and date calculations for developers and system administrators.
Generators
Create passwords, codes, and unique identifiers
Password Generator
Generate secure, strong passwords with customizable options including length, character types, and exclusions. Perfect for creating secure passwords for accounts, applications, and systems.
QR Code Generator
Generate QR codes for URLs, text, contact information, and more. Customizable QR code generator with size, color, and format options for marketing, business cards, and digital sharing.
Hash Generator
Generate various cryptographic hash types including MD5, SHA1, SHA256, SHA512, and more. Essential tool for developers, security professionals, and data integrity verification.
UUID Generator
Generate UUIDs (Universally Unique Identifiers) and GUIDs (Globally Unique Identifiers) in various formats. Essential tool for developers creating unique identifiers for databases, APIs, and distributed systems.
Random Generator
Generate random numbers, strings, and data with customizable parameters. Perfect for testing, simulations, games, and any application requiring random data generation.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text in various lengths and formats. Essential tool for designers, developers, and content creators to fill layouts and test typography.
Git Command Generator
Generate Git commands for common development tasks including commits, branches, merges, and more. Interactive tool to help developers learn and use Git effectively.
Text Tools
Manipulate and analyze text content
Case Converter
Convert text case between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more. Essential tool for developers, writers, and content creators to format text consistently.
Word Counter
Count words, characters, sentences, and paragraphs in text with detailed statistics. Essential tool for writers, students, and content creators to meet word count requirements and analyze text.
CSV to JSON Converter
Convert CSV data to JSON format with customizable options including delimiter detection, header handling, and data validation. Essential tool for data analysts, developers, and anyone working with data formats.
JSON Formatter
Format and validate JSON data with syntax highlighting, error detection, and beautification. Essential tool for developers, API testers, and anyone working with JSON data.
Code Formatter
Format code with proper indentation, spacing, and structure for multiple programming languages. Essential tool for developers to maintain clean, readable code and enforce coding standards.
Text Diff
Compare and highlight text differences between two pieces of text with side-by-side view and change highlighting. Essential tool for writers, editors, developers, and anyone needing to track text changes.
Regex Tester
Test regular expressions with real-time matching, highlighting, and explanation. Essential tool for developers, system administrators, and anyone working with pattern matching and text processing.
Code Minifier
Minify CSS, JavaScript, and HTML code to reduce file sizes and improve website performance. Essential tool for web developers and performance optimization specialists.
Markdown to HTML Converter
Convert Markdown text to HTML with live preview, customizable options, and multiple output formats. Essential tool for content creators, developers, and anyone working with Markdown documentation.
Utilities
Essential tools for daily tasks
Calculator
Advanced calculator with history, scientific functions, and memory features. Perfect for students, engineers, and anyone needing powerful calculation capabilities with a clean, intuitive interface.
Percentage Calculator
Calculate percentages, ratios, proportions, and percentage changes with step-by-step solutions. Essential tool for students, business professionals, and anyone working with percentage calculations.
Image Compressor
Compress images while maintaining quality with advanced algorithms and customizable compression settings. Essential tool for web developers, content creators, and anyone needing to optimize image file sizes.
Image Resizer
Resize images to different dimensions with aspect ratio preservation, multiple output formats, and batch processing capabilities. Essential tool for web developers, designers, and content creators.
URL Encoder
Encode and decode URLs, special characters, and HTML entities with support for multiple encoding standards. Essential tool for web developers, system administrators, and anyone working with URL encoding.
Data Validator
Validate emails, phone numbers, credit cards, postal codes, and more with comprehensive validation rules and error reporting. Essential tool for developers, data analysts, and form validation.
Data Randomizer
Anonymize, shuffle, and mask sensitive data while preserving structure and relationships. Essential tool for data scientists, researchers, and anyone working with sensitive data that needs anonymization.
Sig Figs Calculator
Solve expressions and round to significant figures. Counts sig figs, applies add/sub decimals rule, supports log and ln.
Performance Tests
Measure and track interaction speed and performance
Design Tools
Color and visual tools for design workflows
Time & Scheduling
Plan, calculate, and coordinate time across zones
Marketing & Analytics
Campaign and tracking utilities for marketers
Key Features
Fast & Reliable
All tools are optimized for speed and performance
Privacy First
Your data never leaves your browser
Mobile Friendly
Works perfectly on all devices
Completely Free
No registration, no ads, no hidden costs
Getting Started
Choose a Tool
Browse our categories and select the tool you need
Input Your Data
Enter your data or upload files as required
Get Results
Get instant results and download or copy as needed