QuickKit is a free collection of 52 browser-based tools built for developers, marketers and content creators. It covers the small everyday jobs — formatting JSON, decoding JWTs, testing regex, building cron schedules and UTM links, generating QR codes, checking colour contrast, counting characters, and creating fancy or bold text for social media. There are no accounts, no downloads and no tracking. Almost every tool runs entirely in your browser, so your data never leaves your device.