Transforming Hidden Data into Assets, Accelerating Action
YamLogic builds apps that reduce the quiet friction left inside everyday work. This official site brings together published apps, product updates, development notes, and browser tools that support the ecosystem.
Apps
This is the primary directory for YamLogic products. Only published apps appear here, and future apps will be added as they become ready.
Web Tools
Useful browser tools for character counting, QR code generation, image conversion, date calculation, and everyday file tasks.
Character Counter for SEO Titles and Meta Descriptions
Free character counter for SEO titles, meta descriptions, social posts, and form copy. Check characters, lines, UTF-8 bytes, and counts without spaces in your browser.
Random String Generator for Letters, Symbols, and Kana
Generate random strings from letters, numbers, symbols, hiragana, and katakana for temporary IDs, test data, form validation, and password candidates.
Free QR Code Generator for URL, Wi-Fi, and Contacts
Create QR codes for URLs, text, Wi-Fi, contacts, email, SMS, phone numbers, and calendar events in your browser. Supports standard QR, rMQR, and PNG export.
Free Image Converter for HEIC, WebP, AVIF, JPEG XL, PNG, and JPG
Convert HEIC, JPEG, PNG, WebP, AVIF, and JPEG XL in your browser with no upload required. Batch output, quality, resize, Exif, and transparency checks are included.
Date Calculator for Days Between, Add Days, Business Days
Calculate days between dates, add or subtract days, estimate business days excluding weekends, and count down to deadlines with clear inclusive-date rules.
Blog
App updates, design background, and notes from development and operation.