Text Tools

Essential text manipulation utilities for developers working with strings, documents, and data.

• Character Count - Count characters, words, and lines in your text with real-time statistics.
• Text Diff - Compare two texts and highlight the differences between them.
• Markdown Editor - Live markdown preview with syntax highlighting editor.
• Regex Workbench - Test and debug regular expressions with live matching and explanation.
• Lorem Ipsum Generator - Generate placeholder text for layouts and designs.
• Case Converter - Convert text between camelCase, snake_case, UPPERCASE, and more.
• String Escape - Escape and unescape strings for JSON, HTML, URLs, and other formats.
• Line Sorter - Sort, deduplicate, and manipulate lines of text.

Data Tools

Format, convert, and validate data in various formats including JSON, XML, YAML, and CSV.

• JSON Formatter - Format, validate, and minify JSON with syntax highlighting.
• Base64 Encoder/Decoder - Encode and decode Base64 strings instantly.
• URL Encoder/Decoder - Encode and decode URLs with component and full URL modes.
• JWT Decoder - Decode and inspect JWT tokens with claim analysis and expiration checking.
• YAML to JSON Converter - Convert between YAML and JSON formats bidirectionally.
• XML to JSON Converter - Convert between XML and JSON formats.
• CSV to JSON Converter - Convert between CSV and JSON with delimiter options.
• Cron Expression Parser - Parse and explain cron expressions with next run times.
• Timestamp Converter - Convert between Unix timestamps and human-readable dates.
• SQL Formatter - Format and beautify SQL queries for better readability.
• Code Formatter - Beautify and minify JSON, JavaScript, CSS, and HTML code.
• HTML Entity Encoder - Encode and decode HTML entities for safe display.

Generators

Generate secure passwords, unique identifiers, QR codes, and test data for development.

• Password Generator - Generate secure random or memorable passwords with custom options.
• UUID Generator - Generate UUIDs (v4) in various formats for unique identifiers.
• Hash Generator - Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text.
• QR Code Generator - Generate QR codes from text or URLs with download option.
• Slug Generator - Convert text to URL-friendly slugs with various styles.
• Mock Data Generator - Generate fake data for testing: names, emails, addresses, and more.

Converters

Convert between different formats, units, and representations for various data types.

• Color Converter - Convert colors between HEX, RGB, and HSL formats with preview.
• Number Base Converter - Convert numbers between binary, octal, decimal, and hexadecimal.
• Unit Converter - Convert between units of storage, time, length, weight, and more.
• Image to Base64 - Convert images to Base64 strings and decode Base64 to images.
• Checksum Calculator - Calculate MD5, SHA-1, SHA-256 checksums for file integrity verification.

Why Use Developer Toolkit?

Developer Toolkit provides a comprehensive suite of free online tools designed specifically for software developers, web developers, and IT professionals. All tools run entirely in your browser, ensuring your data never leaves your device. Key benefits include:

• Privacy-Focused - All processing happens locally in your browser. No data is sent to any server.
• No Registration Required - Use any tool immediately without signing up or creating an account.
• Works Offline - Once loaded, tools work without an internet connection.
• No Ads or Tracking - Clean interface focused on productivity, not monetization.
• Fast and Responsive - Modern web technologies ensure quick load times and smooth operation.