All Tools
Curated online tools, organized by category for easy discovery
tools
Barcode Generator
Generate Code128 barcodes online with custom size and color. Live preview and PNG download.
Hex to Text
Decode hexadecimal code to readable text with UTF-8 support. Real-time decoding for debugging and analysis.
Image to PDF
Merge multiple images into a PDF file (local processing)
Markdown to HTML
Convert Markdown to HTML in real time with preview, copy and download.
Image Metadata Viewer
View image dimensions, format, file size and more
Email Validator
Validate email address format online. Support batch validation with detailed results and suggestions.
Business Days Calculator
Count business days between two dates, excluding weekends and custom dates
HTML to Markdown
Convert HTML to Markdown format
Favicon Generator
Generate website favicon from text or letters
CSS Gradient Generator
Visual CSS gradient generator for linear and radial gradients
Date Difference Calculator
Calculate days, weeks, months and years between two dates. Supports any date range.
Text Diff Checker
An online text diff checker that supports line-by-line comparison of two texts, highlighting additions, deletions, and modifications. Suitable for code review, document version comparison, and more.
MAC Address Generator
Generate random MAC addresses in bulk with custom OUI prefix and format.
Discount Calculator
Calculate discounted price and savings. Supports percentage and amount-off modes in real time.
Unit Converter
Online unit converter supporting precise conversions for length, weight, temperature, currency, and more. Simple and easy-to-use interface, ideal for daily work and study.
CSV to JSON
Online CSV to JSON converter tool, supports custom delimiters, header recognition, one-click conversion and file download.
Data Size Converter
Convert between KB, MB, GB, TB and more. Supports decimal and binary standards.
Loan Calculator
Calculate monthly payments for equal principal and interest
JSON Formatter
Online JSON formatting, validation, and compression tool, supporting syntax highlighting and tree view
Image Cropper Tool
Online image cropping tool, supports free cropping, fixed ratio cropping (1:1/4:3/16:9), real-time preview, and one-click download of the cropped result.
HTML Entity Encoder/Decoder
Online HTML entity encoding/decoding tool, supports escaping and unescaping of all HTML special characters to prevent XSS attacks.
Color Code Converter
Online color code conversion tool supporting HEX, RGB, HSL, HSV and other formats, with real-time color preview.
JSON to CSV Converter
Convert JSON array data to CSV format
Chmod Calculator
Pick read/write/execute bits and get the octal mode plus the chmod command
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About these online tools
Every tool listed here runs directly in your browser — no installation and no sign-up required. Text editing, image processing, PDF handling, format conversion, developer utilities and AI writing helpers are grouped by use case so you can find what you need in seconds. Tools that handle files do all the work locally: your files are never uploaded to a server.
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