Tool Directory
Free Online Tools
A focused set of free tools for high-intent tasks: image resizing, JPG PNG conversion, WEBP JPG conversion, word counting, QR code generation, PDF work, and quick calculators. File tools run in your browser whenever possible.
Popular Free Tools
Time, calculator, document, and text tasksInstagram Tools
Instagram Downloader
Check Reels, video, photo, profile links, and Story previews
Instagram Reels Downloader
Check video links from public Reels URLs
Instagram Video Downloader
Check public video post and IGTV links
Instagram Photo Saver
Check photo post and carousel image links
Instagram Profile Picture Downloader
Check public profile image download links
Instagram Story Preview
Check public Story URL preview status
PDF Tools
Image Tools
Utilities
Basic Calculator
Arithmetic and percent calculations
Scientific Calculator
Trigonometry, logs, and square roots
Pressure Unit Converter
Convert bar, psi, Pa, kPa, and MPa
Unit Converter
Convert pressure and common units
Word Counter
Count characters, words, lines, and bytes
QR Code Generator
Convert URLs and text into QR codes
Pyeong Calculator
Convert square meters and pyeong
Korean Age Calculator
Calculate international and Korean age
JSON Formatter
Format, minify, and validate JSON
JSON Pretty
Pretty print JSON online
YouTube Thumbnail Downloader
Check YouTube thumbnails by resolution
Shoe Size Converter
Convert Korea, US, EU, and UK sizes
Korea Salary Calculator
Estimate 2026 monthly take-home pay
2026 Korea Salary Table
Take-home pay by annual salary range
Time Calculator Hub
Choose calculators for time math, work hours, sleep, presentation, and world time
Time Calculator
Add or subtract time
Work Hours Calculator
Calculate work hours from clock-in, clock-out, and breaks
Sleep Time Calculator
Find bedtime from wake-up time and sleep cycles
Presentation Time Calculator
Estimate speech time from script and slides
World Time Calculator
Convert Korea and US time zones
Date Calculator
Calculate the difference between dates