Efficient and practical online tools to boost work and learning efficiency.
XinYuMaTou Web Tools offers a curated collection of free online utilities designed to help students, researchers, developers, and everyday users solve practical problems without installing software. From scientific computation and unit conversion to image optimization, password generation, and code formatting, every tool runs directly in your browser with a focus on speed, accuracy, and privacy.
Unlike many tool websites that require you to upload files to a remote server or create an account, XinYuMaTou processes nearly everything locally on your device using JavaScript and WebAssembly. This means your data never leaves your computer — whether you're resizing a photo, calculating a complex formula, or generating a secure password. Your privacy is built into every tool by design, not added as an afterthought.
Our tools are built with attention to detail and ease of use. Each utility features a clean, intuitive interface that works seamlessly on both desktop and mobile devices. We regularly test every tool for accuracy — calculators are cross-checked against known reference values, image tools are validated for quality preservation, and password generators rely on cryptographically secure random number generators built into modern browsers.
Beyond the tools themselves, XinYuMaTou publishes in-depth tutorials and guides to help you get the most out of our utilities and improve your digital skills. Whether you're learning web development, optimizing your website's SEO, or just looking for practical tips to work smarter, our growing library of articles provides real-world value beyond just the click of a button.
Mathematical computation is at the heart of education, engineering, and scientific research. Our calculation tools are built with precision arithmetic libraries, providing results that you can trust for homework, lab reports, and everyday decision-making. Each tool is designed to be intuitive — no registration, no learning curve.
Powerful scientific calculator supporting complex calculations and functions, including trigonometric, inverse trigonometric, logarithm, square root, etc.
Calculate triangle sides, angles, area and perimeter, supporting multiple input methods (SSS, SAS, ASA, AAS) with visual graphics.
Supports length, area, volume, temperature, data storage, currency and other unit conversions, including metric and imperial units.
Latitude/longitude conversion (deg-min-sec ↔ decimal degrees), wind direction/heading calculation, clock hand angle calculation, essential for drone flight.
Visual content plays a central role in today's digital communication. Our image tools help designers, students, and content creators optimize photos, convert color channels, generate custom QR codes, resize pixel art, and prepare images for PDF printing — all without uploading your files to a cloud server or creating an account.
Convert 3-channel (RGB) images to 4-channel (RGBA) images with customizable transparency, maintaining image quality.
Split long images into A4 size pages with safe margins, output PDF format and download to local.
Local lossless compression + AI smart background removal, supports drag-and-drop upload, real-time preview, one-click download processed image.
Color conversion, color picker, gradient generator, color schemes, one-stop color solution, supports one-click copy.
Zoom image pixels with high quality, supports various scaling methods, maintain image clarity and sharpness.
Generate animated image frames, create GIF frames and animation sequences, supports various animation effects.
Create beautiful custom badges and logos in seconds, choose from multiple styles and colors, download as image for any use.
Online security and data integrity start with strong, well-structured information. Our digital and password tools help you generate cryptographically strong passwords, create custom QR codes for personal or business use, and format JSON data for debugging and documentation. Built for developers, sysadmins, and everyday users who value privacy and efficiency.
Supports general text, WiFi, business card QR code generation, customizable colors, logo, size, one-click download PNG.
Secure random password generator with customizable length (up to 64 characters) and character types, one-click copy to clipboard.
JSON formatting, compression, real-time syntax validation, supports multiple indentation formats, with syntax highlighting and error prompts.
Text processing is a daily task for writers, editors, and office workers. Our office tools provide quick utilities for counting words, converting letter case, removing extra spaces, and cleaning up duplicated lines in any plain-text document — saving you minutes of repetitive manual work.
Sometimes you just want a quick answer without opening a complex app. Whether you are brainstorming naming ideas, choosing what to eat for dinner, or exploring numerology for personal curiosity, our lightweight hobby tools deliver instant results in a friendly, ad-light interface.
Zodiac, numerology, and fortune prediction in one, exploring the mysteries of stars and destiny.
One-click generation of beautiful Chinese and English names, supports gender selection and multiple configurations, easy to copy.
Fun tool to help you decide what to eat today with a spinning wheel!
A serene merit-cultivating tool to calm the mind, click to earn merit and find inner peace.
Practical guides for web development, SEO, and website management. Learn how to build, optimize, and grow your online presence with step-by-step tutorials.
从零开始用 WordPress 搭建网站：域名、主机、安装、主题、插件到上线的完整图文教程。
2026 年新手避坑指南：共享主机、VPS、云主机如何选？价格区间、关键参数与推荐方案。
域名注册、DNS 解析、服务器备案、文件上传、SSL 证书——从 0 到 1 的完整上线攻略。
让 Google 和百度搜到你的网站：关键词研究、页面优化、站点地图、搜索引擎提交全流程。
零基础写第一个网页：HTML 标签、CSS 样式、Flexbox 布局、响应式设计，附完整实战项目代码。
从 HTTP 升级到 HTTPS 的完整指南：免费 Let's Encrypt 证书申请、Nginx/Apache 配置、301 重定向。
色彩心理学、60-30-10 配色法则、免费工具推荐、深色模式与可访问性，附实战配色案例。
WebP/AVIF 格式、压缩技巧、响应式图片 srcset、懒加载、CDN 加速——从 5MB 优化到 50KB。
从域名到上线的 60 项完整检查：DNS、SSL、内容、SEO、性能、安全、法律合规一条不漏，新手也能不踩坑。
2026 年深度解析：两大搜索引擎的算法、收录、内容、外链、本地搜索与 AI 摘要的全面对比与实战策略。
In-depth guides to help you get the most out of our tools. Learn practical techniques, best practices, and little-known features that can save you time and improve your work quality.
Our scientific calculator supports both degree and radian modes — essential for trigonometric functions. For students working through calculus or physics problems, the memory function lets you store intermediate results without retyping values repeatedly.
Pro tip: Use the parentheses buttons to control calculation order precisely, especially when working with complex formulas involving nested operations. This helps avoid common operator-precedence mistakes that can throw off your entire result.
A strong password should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and special symbols. Our password generator creates cryptographically secure random passwords using your browser's built-in Web Crypto API, which is far more secure than pseudo-random algorithms.
Security best practice: Use a unique password for every online account. Consider using a password manager to keep track of them securely. Enable two-factor authentication (2FA) wherever available for an extra layer of protection beyond just passwords.
When compressing images for the web, aim for a balance between file size and visual quality. For photographs, JPEG at 70-80% quality usually provides good results with minimal visible loss. For graphics with sharp edges or transparency, use PNG or WebP format.
Our image compression tool runs entirely in your browser, meaning your photos never leave your device. This is especially important when working with sensitive or personal images — you get the same quality optimization without the privacy risk of uploading to a third-party server.
Our triangle calculator supports multiple input methods: SSS (three sides), SAS (two sides and included angle), ASA (two angles and included side), and AAS (two angles and a non-included side). This makes it useful for homework across geometry, trigonometry, and physics courses.
Learning tip: After using the calculator to check your answer, try working through the problem manually using the Law of Sines and Law of Cosines. The calculator is a great way to verify your work and understand where you might have made a calculation error.
Unit conversion is a fundamental skill in science, engineering, cooking, and travel. Our unit converter supports length, area, volume, temperature, weight, data storage, and more. Remember: when converting temperature, the formula isn't a simple multiplication — Fahrenheit to Celsius requires subtracting 32 first, then multiplying by 5/9.
Useful to memorize: 1 inch = 2.54 cm, 1 mile ≈ 1.609 km, 1 kilogram ≈ 2.205 pounds, 1 liter ≈ 0.264 gallons (US). Having these rough conversions in your head is handy for everyday estimates when you don't have a calculator nearby.
JSON (JavaScript Object Notation) is the most common data format for web APIs and configuration files. Our JSON formatter helps you beautify minified JSON, validate syntax, and quickly identify structural errors. It's an essential tool for developers working with REST APIs or debugging data pipelines.
Common JSON mistakes to watch for: trailing commas after the last item in an object or array, mismatched brackets, and using single quotes instead of double quotes. Our formatter highlights these errors in real-time so you can fix them immediately.
Need help getting started with any of our tools, or looking for more information about how they work? Our Help Center provides detailed usage instructions, frequently asked questions, and contact information for reaching the XinYuMaTou team. We respond to every message.