Tech Blog
Frontend deep dives, architecture design, performance optimization, and development insights
The Developer's Text Toolkit: 10 Essential Online Text Tools
A curated collection of 10 must-have text processing tools for developers—from regex testing to diff comparison, all in one place.
No Software Needed: The Complete Guide to Browser-Based Video Conversion
Learn how to compress, convert, trim, and extract audio from videos—all in your browser, no software required. Powered by WebAssembly.
JSON Formatting Beyond Pretty-Print: 5 Tips to Boost Productivity
Master JSON formatting, validation, diff, and conversion—5 practical tips that will transform your JSON workflow.
12 Business Uses for QR Codes: From Payments to Analytics
QR codes go beyond payments. Explore 12 real business applications with tracking tips, design guidance, and practical examples.
Learn Regex From Scratch: Master Text Processing in 30 Minutes
A beginner-friendly regex tutorial covering basic syntax to advanced lookahead assertions, with practical recipes and online testing tools.
The Privacy Trap of Free Online Tools: Where Do Your Files Go?
Uncover the privacy reality of online tools—which ones keep your files, how to verify client-side processing, and how to protect your data.
Online Tool Websites Compared 2026: Security, Speed, and Features
An in-depth comparison of major online tool websites across functionality, privacy, performance, and multilingual support.
Password Security Guide 2026: Is Your Password Really Safe?
Comprehensive password security guide covering strength assessment, encryption, 2FA, and how online tools handle your credentials.
The Ultimate Image Compression Guide: JPEG vs PNG vs WebP vs AVIF
Everything you need to know about image compression—format comparison, online vs local tools, and how to reduce file size without losing quality.
2026 Free Online PDF Tools Compared: We Tested 12 So You Don't Have To
We tested 12 free online PDF tools across compression rate, speed, privacy, and UX. Includes real test data and honest recommendations.
Performance API Deep Dive: Long Tasks, INP, and Performance Monitoring Systems
In-depth guide to PerformanceObserver for Long Tasks, Interaction to Next Paint optimization, Element Timing, and building a RUM monitoring system for comprehensive browser performance monitoring.
Native CSS Nesting in Practice: Moving Beyond Preprocessors
Deep dive into native CSS nesting syntax rules, key differences from Sass/Less, the & nesting selector, @layer cascade layers, and :is() implicit wrapping for building modern stylesheet architectures without preprocessors.
WebTransport Protocol Deep Dive: QUIC-Based Browser Real-Time Communication
Deep analysis of WebTransport protocol architecture, comparison with WebSocket, datagram and bidirectional stream modes, and building QUIC/HTTP3-based real-time browser applications.
Web Accessibility in Practice: ARIA Roles and WCAG 2.2 Compliance Guide
A systematic guide to ARIA roles, properties, and states, combined with WCAG 2.2's four principles, demonstrating best practices for accessible modals, tabs, and forms.
URLPattern API in Practice: Native Browser Route Matching and Pattern Parsing
Deep dive into URLPattern API syntax, matching rules, and real-world applications including Service Worker routing, client-side routing, and pattern parsing best practices.
File System Access API in Practice: Browser-Side Local File Read/Write Architecture
A deep dive into the File System Access API covering file pickers, FileSystemFileHandle read/write permission model, Origin Private File System (OPFS) sandboxed storage, and Access Handle high-performance random read/write.
WebCodecs API in Practice: Low-Latency Audio/Video Encoding and Decoding in the Browser
A deep dive into the WebCodecs API covering VideoEncoder/Decoder, AudioEncoder/Decoder, VideoFrame/AudioData zero-copy frame processing, comparison with MSE, and building low-latency video transcoding and real-time processing pipelines in the browser.
View Transitions API in Practice: Cross-Page and Cross-Document Animated Transitions
A deep dive into the View Transitions API for SPA and MPA applications, covering document.startViewTransition, ::view-transition-old/new pseudo-elements, cross-document transitions, and deep integration with CSS animations.
Scheduler API in Practice: Browser Task Priority Scheduling and Main Thread Optimization
A deep dive into the Scheduler API priority model, scheduler.postTask() and scheduler.yield() usage, and how to avoid long tasks blocking the main thread—achieving optimal scheduling for high-priority interaction response and low-priority computation.
WebGL GPU Compute in Practice: Browser-Side Parallel Image Processing Architecture
A deep dive into WebGL shader-based GPU parallel image processing, covering Fragment Shader batch pixel operations, convolution filters, color transforms, texture upload, readPixels readback, and performance comparison with Canvas 2D.