Technical articles, tutorials and latest updates
UI Placeholder Image Generator is a professional tool for creating custom placeholder images. Support custom dimensions, colors, text with PNG/JPEG output. Fast, free, and privacy-focused.
Where did your ad budget go? Learn how to use a UTM Builder to track every penny. In just 3 steps, generate standardized marketing links. Combined with QR codes and URL encoding, say goodbye to tracking headaches.
Struggling with YAML indentation errors or swimming in JSON curly braces? Discover this professional online YAML/JSON converter with bidirectional conversion, real-time preview, and syntax validation.
Received a QR code image but don't know how to scan it? No scanning software on your computer? Online QR code reader supports uploading images or using camera to scan, quickly identifying text, URLs, WiFi information, contacts, and more. Pure frontend processing protects privacy, no server upload required. Suitable for internet professionals' daily QR code recognition needs.
Laoniuma Tools Image Color Picker: AI-powered intelligent analysis with frontend-only privacy protection. Accurately extract color information from images, support Hex/RGB color values, automatically generate harmonious color palettes. Perfect for brand design, web development, photo post-processing, and more.
Deep dive into Cron expression pain points and solutions, from natural language to code conversion, future execution time preview, reverse parsing and other core features to help developers efficiently configure scheduled tasks and avoid syntax errors.
Deep dive into JWT Token debugging pain points and solutions, from quickly viewing Token content to verifying expiration time, from troubleshooting authentication errors to understanding Token structure, helping developers efficiently debug JWT-related issues and improve development efficiency.
Want to write efficiently? Markdown is your best choice. This article takes you from zero to mastering Markdown syntax and explores the benefits of using an online Markdown editor. No installation needed, start writing instantly.
From project scheduling to cross-border meeting timezone conversion, Laoniuma Tools provides comprehensive date and time solutions. Includes 7 practical tools like date calculator, workday statistics, timestamp converter, retirement countdown, helping you efficiently plan work and life.
A high monthly salary doesn't mean high value. Use Laoniuma Tools' [Real Hourly Rate Calculator] to calculate your actual hourly wage with one click. Compare 996 work schedules and reveal the hidden costs of overtime. Reject ineffective involution and see the value of your time.
No need for Photoshop. Laoniuma Tools offers a one-stop free online image processing solution. Covering image compression, format conversion (WebP/PNG/JPG), smart cropping, watermarking, grid splitting, Base64 conversion, color picking, and more. Pure frontend processing protects your privacy.
Does an hour-long meeting waste thousands of dollars? Use the Meeting Cost Ticker to calculate meeting costs in real-time. Visualize time value, reject ineffective meetings, and boost team efficiency. Supports custom attendee numbers and hourly rates to ensure every meeting is worthwhile.
From code formatting to regex testing, Cron generation to Base64 conversion, Laoniuma Tools provides comprehensive developer tools. No installation needed, pure frontend processing protects code privacy. Covers JSON, CSS, JS, HTML, MD5, Timestamp, and more.
No software installation needed. Laoniuma Tools offers a one-stop free online text processing solution. Covering format conversion, code formatting, text encryption, regex testing, Markdown editing, word counting, and more. Pure frontend processing protects your privacy.
Code broken? JSON data looks wrong? This in-depth guide shows you how to use online text diff tools to quickly locate differences. From resolving code conflicts to verifying API data, master essential diff techniques that developers need.
In-depth analysis of Unix timestamp and Cron expression fundamentals, covering the Year 2038 problem, differences between Crontab and Quartz, and timezone pitfalls to help you efficiently solve time-related challenges in development
In-depth analysis of MD5 encryption algorithm core principles, application scenarios, and security issues, combined with Laoniuma Tools' MD5 online encryption tool, helping developers and security engineers correctly understand and use MD5 hash algorithm
In-depth analysis of the underlying principles of JSON formatting tools, covering syntax validation, BigInt precision loss handling, and API debugging techniques to help you efficiently process data with Laoniuma Tools
Deep dive into the 2025 delayed retirement policy. Use our retirement date calculator to accurately calculate your retirement age and date. Includes policy interpretation, pension eligibility, and personal retirement planning advice.
Learn how to use the Workday Calculator to plan projects accurately, exclude weekends and holidays, and improve your team's productivity. An essential guide for project managers and HR professionals.
In-depth analysis of Base64 core encoding principles and key applications in modern web development, combined with Laoniuma Tools' Base64 tools, guiding developers to efficiently handle various data conversion tasks
Deep dive into the underlying principles of URL encoding (percent-encoding), RFC standards, space handling traps, and security vulnerabilities like double encoding. Master essential encoding knowledge for Web development.
In-depth analysis of the core concepts and practical techniques of regular expressions, combined with Laoniuma Tools' online regex testing tool, helping developers quickly master and apply regular expressions to solve real-world problems
Deep dive into the underlying support of timezone conversion—IANA Time Zone Database, revealing the "one-hour trap" hidden behind Daylight Saving Time (DST), and guide you on how to use online tools to solve global time synchronization challenges.
Dive deep into the features and use cases of the online word counter tool. Whether for SEO, social media, or academic writing, precise word counting helps you succeed. Free, secure, real-time online character counter.
