Tool documentation

Clear, honest guides to every free tool on this site: what each option does, how the results are worked out, the limits, and how to fix common problems.

• Free SEO + AI Audit docs: How the Free SEO + AI Audit crawls up to 25 pages, scores six categories and ranks fixes for Google and AI search, plus its limits.
• AI Website Detector docs: How the free AI Website Detector scores any public website from 0 to 100, what each verdict and confidence level means, and how to read the evidence.
• Free Background Remover docs: How the Free Background Remover cuts out your subject, which files it accepts, every background option, its limits and fixes for common errors.
• Free QR Code Generator docs: Create free static QR codes for links, Wi-Fi, WhatsApp, UPI and contact cards, add your logo and colors, and download PNG, SVG or JPG.
• Ad Spend & ROI Calculator docs: Plan a Google Ads or Meta Ads budget, or check live results, and see leads, sales, ROAS, ROI and break-even for 26 industries.