Free growth tools for marketers

They are a set of focused calculators and utilities that turn raw marketing numbers into decisions — fast.

• Plan and measure paid media, funnels, and outbound in seconds.
• Get a precise CPM, CTR, CVR, margin, or TAM/SAM/SOM without a spreadsheet.
• Sanity-check assumptions before a meeting or while scoping a new channel.

They are built by Concat Pro so growth, outbound, and creator teams can move from gut feel to measurable trade-offs. Each tool is single-purpose, runs in your browser, and needs no login. The point is the speed and clarity they give your decisions, not the price tag.

Yes. The tools work instantly in any modern browser.

• Nothing to download or install.
• No sign-up wall before you see results.
• They work on desktop and mobile.

Just open a tool, enter your numbers, and get the answer. Each one is a focused, single-page utility, so there is no dashboard to learn and no onboarding to sit through. Bookmark the ones you use most and they will load in seconds the next time you need a quick CPM, CTR, or margin check between meetings.

The collection covers the most common marketing and outbound math, including:

• CPM, CTR, and CVR calculators for paid media and funnels.
• Growth rate, percentage, margin, and TAM/SAM/SOM market-size calculators for planning.
• Email permutator, subject-line tester, and spam checker for outbound.
• ICP fit scorer and WHOIS domain lookup for research.

Each tool is single-purpose, so you get a precise answer in seconds instead of wrestling with a spreadsheet. We add and refine tools over time based on what growth teams actually reach for, so the lineup keeps pace with day-to-day marketing work.

Each calculator uses the standard, transparent formula for its metric — for example CTR = clicks / impressions × 100, or CVR = conversions / clicks × 100. The math is exact for the inputs you provide; there is no rounding magic or hidden weighting. The one thing to watch is your inputs: make sure clicks, impressions, spend, and conversions describe the same campaign, time window, and funnel step. A correct formula on mismatched definitions still produces a misleading number, so align your sources first, then trust the result.

They are useful for anyone who plans, runs, or reports on growth:

• Performance and paid-media marketers tuning CPM, CTR, and CVR.
• Outbound, SDR, and RevOps teams sizing pipeline and lists.
• Founders and operators validating go-to-market math and TAM.
• Creators and agencies pricing and measuring campaigns.

If your work involves spend, traffic, leads, or pricing, these tools turn raw numbers into decisions. They are equally handy for a quick sanity check before a meeting or a back-of-envelope estimate while scoping a new channel — no analyst required.