Practical guides and tips to help you get more done with free, in-browser developer tools.
Learn how JPG, PNG and WebP differ, what quality settings to use, and how to shrink your images for faster page loads — without any visible quality loss.
Read articleWhat JSON is, why formatting matters, how to spot and fix common syntax errors, and how to minify JSON for production.
Read articleA plain-English explanation of Base64 — what it is, when to use it, and how to encode and decode text or files in your browser.
Read articleWhy spaces, ampersands and hashes break URLs, and how percent-encoding turns any text into a URL-safe string.
Read articleWhat a universally unique identifier is, how v4 works, why collisions are practically impossible, and how to generate one.
Read articleHow hashing differs from encryption, what MD5 is (and isn't) good for, and when to reach for SHA-256 instead.
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