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Free Tools for B2B Sales Teams and AI Builders

Small tools we built for our own work and opened to everyone. They run in your browser, free and without an account.

Tools that run in your browser

Free Claude API Cost CalculatorYour monthly Claude API bill for any model, with caching, Batch and fast mode.Open the tool → Free LinkedIn Text FormatterBold, italic and lists for LinkedIn posts, with a live preview of the see more cutoff and a character counter.Open the tool → Meeting Show Rate CalculatorHow many booked B2B meetings will actually happen, from our study of 1,380 meetings booked by cold calling.Open the tool →

Free GTM resources

GTM Diagnostic Skills for ClaudeA free, open-source Claude Code plugin: cold email domain check, cold email grader, lead list checks and more.Get it on GitHub → The GTM Tools We TrustOur directory of go-to-market tools for B2B sales, with prices, pros and cons and our own 600-lead test.See the directory →

Want these systems running inside your sales team?

Growth Cab is a go-to-market consulting firm for B2B tech companies selling $50,000+ deals. We build the outbound, LinkedIn and closing systems.

Apply to GC Read the blog