API & webhooks
How To Test Rest API Calls?
Step through how to test rest api calls and verify method, URL, headers, body, status and response content before you use or share the result.
Web Dev Tools Base Blog
Web Development Guides, Debugging & Developer Workflows
995 practical guides with worked examples, troubleshooting and links to related tools. Browse by topic or search the full collection.
API & webhooks
How To Test Rest API Online?
A practical guide to how to test rest api online, including the key steps and checks for method, URL, headers, body, status and response content.
HTML & CSS
Compress CSS: Minification and Transfer Size Explained
Reduce CSS source size with minification, distinguish it from HTTP compression, and measure the actual stylesheet bytes delivered to the browser.
HTML & CSS
Minify CSS While Preserving Its Actual Behavior
Minify a stylesheet, retain meaningful spacing and license notices, and compare the generated CSS with the source before deploying the result.
Color & design
Best Color Combination Generator
Use this guide for best color combination generator; it explains the workflow and how to verify syntax, semantics, input data and environment-specific output.
Color & design
Choose a Color Contrast Checker for Your Workflow
Compare a two-color checker, browser developer tools, and a desktop analyzer by the evidence you need, supported inputs, and review limitations.
Code format minify & diff
World Time Zone Differences
Learn world time zone differences: practical steps plus final checks for syntax, semantics, input data and environment-specific output.
Code format minify & diff
Map Of Time Zone Differences
Solve map of time zone differences with a focused code format minify & diff workflow and final checks for syntax, semantics.
DNS IP & domain
Best DNS Lookup
Learn best dns lookup: follow a focused dns ip & domain workflow, then verify record type, authoritative data, TTL and resolver cache on the final result.
DNS IP & domain
Best DNS Lookup Tool
Step through best dns lookup tool and verify record type, authoritative data, TTL and resolver cache before you use or share the result.
HTML & CSS
Minify CSS in WordPress Without Losing Theme Styles
Identify who owns a WordPress stylesheet, minify the maintained source, enqueue the generated file, and check theme, editor, and cache behavior.
HTML & CSS
CSS Gradient Tutorial: Linear, Radial, and Conic
Learn CSS gradients with three examples, understand where each gradient type starts, and generate a two-color background without confusing images and colors.
Other developer utilities
Best Gradient Generator
Learn best gradient generator: follow a focused other developer utilities workflow, then verify code conversion. Read the full guide.
HTML & CSS
Choose a CSS Minifier for Your Project and Workflow
Compare a local CSS minifier with build-time optimizers using syntax support, license handling, reproducibility, source maps, and rendered behavior.
HTML & CSS
Minify CSS and JavaScript for a Small Web Page
Minify a page’s CSS and JavaScript separately, preserve file relationships and behavior, then verify the exact assets the browser loads.
HTML & CSS
Add JavaScript and CSS Minification to a Release Workflow
Plan a repeatable JavaScript and CSS minification step with maintained sources, dependency order, matching maps, cache versions, and release checks.
SQL & data queries
Best SQL Beautifier
Solve best sql beautifier with a focused sql & data queries workflow and final checks for syntax, semantics, input data and environment-specific output.
HTML & CSS
Best HTML Formatter
Step through best html formatter and verify syntax, semantics, input data and environment-specific output before you use or share the result.
JavaScript & TypeScript
Best JavaScript Minifier
Learn best javascript minifier: practical steps plus final checks for syntax, semantics, input data and environment-specific output.
Color & design
How to Convert HEX to RGB: Read the Three Color Channels
Convert three-digit or six-digit HEX into RGB with worked channel arithmetic, verified examples, input limits and checks for preserving the original color.
Color & design
How to Convert HSL to HEX with Worked Color Calculations
Convert HSL hue, saturation and lightness into HEX using a worked example, gray and boundary cases, explicit rounding and verified converter input limits.
Code format minify & diff
Best Code Compare Tool
Solve best code compare tool with a focused code format minify & diff workflow and final checks for syntax, semantics. Read the full guide.
Code format minify & diff
Source Code Compare Tool
Solve source code compare tool with a focused code format minify & diff workflow and final checks for syntax, semantics.
Code format minify & diff
Best Code Diff Tool
Step through best code diff tool and verify syntax, semantics, input data and environment-specific output before you use or share the result.