Blog
Step-by-step articles, tested workflows, and reference guides that support the tools published on JW Tool Box.
Working with a global team? Our free World Clock tool shows you the current time across multiple cities at a glance—no more mental math or accidentally scheduling calls at 3 AM. Why You Need a World Clock Tool Remote work has gone global. Your team might span: Development in India (IST, UTC+5:30)
TL;DR — Paste two versions of any text, code, or document into the Diff Checker → and see every addition, deletion, and change highlighted instantly. Runs locally — nothing gets uploaded. Ever spent an hour squinting at two versions of a document trying to find what changed? Whether it's a lawyer who swapped "30 days" for "60 days" in a contract, a colleague who "made a few small edits" to you…
Have you ever clicked a link in an email only to get a "Page Not Found" error? Or noticed your UTM tracking parameters mysteriously disappearing from Google Analytics? The culprit is almost always improper URL encoding. TL;DR — URL encoding converts special characters (spaces, &, =, ) into percent-encoded format so they don’t break your links. Spaces become %20, ampersands become %26. Only enc…
To test a JavaScript regular expression online, open the Regex Tester, enter the pattern without / delimiters, and paste a short sample. The page highlights matches and lists their starting indexes and numbered capture groups. Use invented text while learning. Your first test: find an invoice number 1. Enter INV-(\d{4})-(\d{3}) in the pattern field. 2. Leave the default g and i flags enabled.
Most "free" QR code generators are a trap. You create a code, print 1,000 flyers, and a week later the code stops working unless you pay a monthly subscription. JW Tool Box QR Code Generator is different. We generate Static QR Codes that: 1. Never Expire: The link is stored in the code itself, not on our servers. 2. Have No Scan Limits: Scan it 1 million times, it will still work.