Free SaaS Tools & Calculators for Founders
Essential calculators, templates, and resources to help you build, launch, and scale your SaaS business. All free. No signup required.
Why Use CodixFlow's Free SaaS Tools?
Building a SaaS business requires making data-driven decisions at every stage. Whether you're calculating your Monthly Recurring Revenue (MRR), determining optimal pricing strategy, tracking Customer Acquisition Cost (CAC), or projecting your cash runway—our free tools give you instant answers without spreadsheets or complex formulas.
These tools are built by SaaS developers who have launched multiple products. We understand the metrics that matter and created calculators that deliver actionable insights in seconds. From financial projections to AI automation templates to lead generation resources—everything you need to move faster and make smarter decisions.
Browse Free Tools by Category
17+ professional-grade tools, calculators, and templates—all completely free for founders and businesses.
SaaS Growth & Planning
Calculate key SaaS metrics and project your business growth with precision.
Keywords: MRR calculator, pricing calculator, CAC, LTV, runway calculator, SaaS metrics, financial projections
SaaS Pricing Calculator
Calculate optimal pricing for your SaaS product based on costs, market positioning, and customer value. Get data-driven pricing recommendations instantly.
MRR Growth Projections
Project your Monthly Recurring Revenue growth with detailed forecasts. Input your current MRR, churn rate, and growth rate to see 12-month projections.
Runway Calculator
Calculate how long your startup can survive with current burn rate. Essential tool for founders to manage cash flow and plan fundraising.
Customer Acquisition Cost (CAC) Calculator
Calculate your true customer acquisition cost across all marketing channels. Track CAC trends and optimize your acquisition strategy.
Lifetime Value (LTV) Calculator
Calculate customer lifetime value and LTV:CAC ratio. Understand the long-term value of your customers and optimize profitability.
AI & Automation
AI prompts, automation templates, and guides to implement AI in your business.
Keywords: ChatGPT prompts, AI automation, workflow templates, AI tools comparison, prompt engineering
AI Prompt Library
Curated collection of high-quality AI prompts for business, marketing, development, and customer support. Copy, customize, and use instantly.
Automation Workflow Templates
Ready-to-use automation workflow templates for common business processes. Save hours with pre-built workflows for sales, support, and operations.
ChatGPT Use Cases for SaaS
Comprehensive guide on implementing ChatGPT in your SaaS product. Real examples, code snippets, and best practices.
AI Tool Comparison Guide
Side-by-side comparison of top AI tools and platforms. Find the right AI solution for your business needs and budget.
Frequently Asked Questions
What SaaS metrics should I track as a founder?
The most important SaaS metrics are: MRR (Monthly Recurring Revenue), Churn Rate, CAC (Customer Acquisition Cost), LTV (Lifetime Value), LTV:CAC Ratio, and Cash Runway. Our free calculators help you track all of these instantly.
How do I calculate Monthly Recurring Revenue (MRR)?
MRR is calculated by multiplying the number of customers by the average revenue per customer per month. Use our MRR Growth Calculator to project future revenue based on growth rate and churn.
What is a good LTV:CAC ratio for SaaS?
A healthy LTV:CAC ratio is 3:1 or higher. This means the lifetime value of a customer should be at least 3x your customer acquisition cost. Calculate yours with our free LTV Calculator and CAC Calculator.
Are these tools really free?
Yes, all tools are 100% free with no signup, no credit card, and no hidden fees. CodixFlow builds these tools to help founders make better decisions. We believe great tools should be accessible to everyone.
Need a Custom Tool or SaaS Product?
If you need a specialized calculator, internal tool, or full SaaS product built for your business, we can help. CodixFlow builds custom solutions for startups and growing companies.
Trusted by 50+ founders • 4-8 week delivery • Fixed-price projects