| What it does | Dynamic QR codes you can edit after printing, starting free with no signup required
| Test a used NVIDIA GPU's health in one command
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| Stage | Not given
| Startup
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| Founded | Not given
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| Based in | US
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Health check: Free. Signed certificate: $29 USD per certificate.
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| Key features | - Create static and dynamic QR codes for URLs, Wi-Fi, contact cards, email, phone, SMS and more
- No signup required to generate and download codes
- Customize colors, frames, shapes and optional icons
- Download as PNG for screens or SVG for print
- Edit destination of dynamic codes after printing
- Scan analytics with device, location, referrer and time-of-day breakdown
- Embed your logo in the middle of QR codes
- Custom domain for QR code links (go.yourbrand.com/menu format)
- Bulk generation from CSV or Google Sheets add-on
- MCP server integration with Claude, ChatGPT and Cursor
| - 10-minute sustained stress test
- Plain-language problem explanations
- Cryptographically signed certificates with Ed25519
- One-time server-issued challenge binding
- Public verification page for certificates
- Online revocation check
- Delete token for result removal
- Salted hash card identifier protection
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| What makes it different | - No signup wall or forced trial to generate and download codes
- Dynamic codes at $4/month, affordable for small businesses instead of enterprise pricing
- Edit printed codes anytime without reprinting
- Integrated with AI assistants through MCP server for code generation via Claude and ChatGPT
- No watermark on downloads for free account users
| - Open source under Apache-2.0 license with no account required
- Catches problems under sustained load that brief checks miss
- Server-side grading against healthy reference set prevents manipulation
- Privacy-preserving with salted hash identifiers and opt-in uploads
- Honest about limitations of certificate as proof
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 25 | 0 |
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| Referring domains (Majestic) | 24 | 0 |
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QRFLOW.codes
gpucheck