Most free QR generators route your code through their redirect domain — so the code stops working the day they start charging, and every scan is tracked by a third party. These encode your URL directly. Same principle throughout: no accounts, no credit limits, no watermarks, no backend.
| Tool | What it does |
|---|---|
| SERP preview | Google truncates on pixel width, not character count. This measures the rendered width of your title (580px) and description (920px) rather than guessing from a character limit |
| Open Graph | Live share-card preview plus the full tag set, including the reminder that SVG og:image is silently ignored by WhatsApp, Facebook and LinkedIn |
| Schema JSON-LD | Organization, LocalBusiness, Product, FAQPage, Article and BreadcrumbList, with empty fields stripped |
| QR code | PNG and true vector SVG, four error-correction levels, custom colours. No redirect, no expiry |
| UTM builder | Normalises values to lower-case and warns when a required parameter is missing |
| robots.txt | Includes the AI crawlers — GPTBot, ClaudeBot, PerplexityBot, CCBot, Google-Extended — that most generators still omit |
| Sitemap check | Validates pasted XML: duplicates, non-HTTPS URLs, missing lastmod, the 50,000-URL and 50 MB limits |
| Keyword density | Single words and two-word phrases with stop-words removed, flagging anything over 3% |
| GST calculator | Indian GST both directions, with CGST/SGST or IGST split |
No servers, no analytics, no cookies. The single dependency (qrcode-generator, MIT) is vendored, and brand fonts are self-hosted.
- Scale Tools — PDF and everyday
- Scale Dev Tools — developer utilities
- Scale Image Tools — image manipulation
MIT.
Built and given away by Scale Us Technologies.