Practical guides for free online tools. 319 articles — page 3 of 27.
Your website has 50 SVG icons. They add 200KB to every page load. An SVG minifier reduces them to 80KB — improving your LCP score. Here's the web performance optimization workflow.
An API returns JSON. Excel reads CSV. A JSON to CSV converter bridges the gap. Here's the data analyst's API-to-spreadsheet workflow.
WebSocket connections are text-based. Binary data like images and files must be Base64-encoded for transmission. Here's the WebSocket binary data transport guide.
Markdown preview renders Markdown as formatted text. HTML to Markdown converts HTML to Markdown syntax. One creates the view. One creates the source. They are inverse operations.
Color picker lets you visually select any color. Color names reference provides the 148 CSS named colors. One is for exploration. One is for quick reference. Both are essential for web design.
The first barcode was inspired by Morse code — extended dots and dashes. Today, 6 billion barcodes are scanned every day. Here's the 70-year history of the technology that runs the global supply chain.
Your API returns a 200,000-character JSON response in one collapsed line. A JSON formatter makes it readable, searchable, and debuggable. Here's the API debugging workflow.
Your legacy system exports data as CSV files. Your new API accepts JSON. A CSV to JSON converter bridges the gap. Here's the data migration workflow.
Your D&D party just walked into a tavern. How many patrons are there? What are their names? What loot do they carry? A dice roller and name generator answer all three. Here's the GM's guide.
QR codes encode URLs, contacts, and WiFi passwords. Barcodes encode product SKUs. Both are scannable. But the data and scanners are completely different.
An age calculator measures time elapsed since a date. A unit converter transforms physical quantities between units. Both calculators. Both numbers. Completely different dimensions.
Your thumbnail has 200×113 pixels to convince someone to click. The right design triggers curiosity, emotion, or recognition. Here's the psychology behind the click.