The QR Code Generator (TQRCG) is a simple yet powerful tool designed to help businesses enhance customer engagement through QR codes. With its intuitive interface, it allows users to easily create, customize, and manage QR codes for various purposes, including marketing campaigns, product packaging, event promotions, digital displays, and more.

Trusted by over 3 million users worldwide, TQRCG has enabled the creation of 10 million+ QR codes across 60+ countries. It empowers businesses of all sizes to achieve measurable results, whether it’s driving website traffic, gathering customer feedback, boosting product visibility, or strengthening brand presence. While particularly beneficial for industries like retail, real estate, hospitality, restaurants, education, and manufacturing, the platform is versatile enough to cater to any sector with QR code requirements.

One of its standout advantages is that it’s the only QR code generator offering two free dynamic QR codes that never expire, making it perfect for long-term, low-maintenance campaigns. Additionally, the free plan provides unlimited static QR codes, enabling seamless scalability without extra costs.

Key Highlights:

Generous Free Plan – Unlimited static QR codes and two permanent dynamic QR codes.

Versatile QR Solutions – Supports vCard, app downloads, PDFs, feedback forms, multi-URL codes, and more.

Multiple Download Formats – Export QR codes in PNG, SVG, and EPS for flexible usage.

In-Depth Analytics – Track scans, engagement, and campaign performance with detailed insights.

Advanced Customization – Personalize QR codes with colors, logos, and branding for a consistent identity.

Whether you want to capture attention in-store, convert print materials into digital experiences, or track QR code performance across campaigns, TQRCG delivers a fast, reliable, and scalable solution to bridge offline and online interactions seamlessly.

DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths yourself.

Calculators

• SaaS Metrics — MRR, ARR, ARPA, gross & net revenue churn, NRR, GRR, LTV, CAC, LTV:CAC, CAC payback and the Quick Ratio from one month of data, each with a benchmark.
• Freelance Hourly Rate — works backwards from the take-home income you want, through unbillable time, expenses and tax, to the rate you need to charge.
• Subscription Cost — list your recurring subscriptions and see the real total per month, per year and over five years. Saved in your browser only.
• Uptime / SLA — turn an availability target like 99.9% into exact downtime per day, week, month and year, and back again.
• Cost of Downtime — estimate what an outage costs in lost revenue, lost productivity and recovery, as a total and per minute.
• Inflation — what a US dollar amount from one year is worth in another (CPI-U), with cumulative and average annual inflation.
• Savings Goal — how much to save each month to hit a target by a date, or how long a fixed amount will take.
• Hourly ↔ Salary — convert between an hourly rate and yearly, monthly and weekly pay, both directions.
• Compound Interest — project a starting amount plus regular contributions, with a year-by-year breakdown.
• LLM API Cost — estimate what an AI feature costs per request, day and month from token prices and volume, including prompt-caching savings.

There are also short plain-English guides on the topics behind the tools.