Free tools, no strings.

Three principles, in order

1. Estimates labeled. Every number on this site is an industry approximation, and says so where it appears — with the methodology one tap away in every tool. We would rather be honestly approximate than confidently wrong.

2. Your data never leaves your device. Every calculation runs in your browser. Your numbers, your files, your profile, your history — all local. We can't see them, sell them, or lose them. Literally.

3. Free forever, and we mean the math. Every tool produces a shareable card. Creators posting their results is the entire business model — your share is worth more than your subscription. No accounts, no ads, no paywall, no "premium tier."

What is SpawnMetrics?

SpawnMetrics is a free suite of instant calculators for creators — sponsorship rates, engagement rate, YouTube and TikTok earnings, follower growth projections — plus a Wrapped generator that turns your year in content into shareable stat slides. Every answer comes back in seconds. No signup, no cost, no waiting.

Whether you're pricing a brand deal, checking if your engagement is healthy, or projecting the month you hit 1M followers, the workflow is the same: type a few numbers, get an honest estimate, share the card if you like it.

Why is it free?

Because the tools market themselves. Every calculator produces a shareable result card, and creators posting their rates and stats is the growth engine. Your share is worth more to us than your subscription.

That means no accounts, no ads, no paywalls, no “premium tier” hiding behind an email gate. A calculator that answers in five seconds earns a share; a paywall earns a bounce. We'd rather be useful to a lot of creators than extract a few dollars from a few.

Privacy, in plain terms

No accounts. No tracking of your data. Tools run in your browser.

Every calculation on this site runs client-side, in JavaScript, on your device. Type in your numbers and the math happens locally — nothing gets sent to a server, because there is no server-side processing to send it to.

The Wrapped generator goes further: it parses your TikTok or YouTube data export entirely in your browser. The file never leaves your device. We can't see it. Literally.

The only network requests this site makes are for fonts and, optionally, a privacy-friendly analytics snippet (Plausible-style: no cookies, no personal data). That's the complete list. No cookie banner, because there are no cookies. No data sold, because no data reaches us.

Estimates, not advice

Every figure SpawnMetrics produces — rates, earnings, benchmarks, projections — is an approximation built from public industry data. Use it for guidance and negotiation context, not as financial, legal, or tax advice. For the full breakdown of where the numbers come from, see the benchmarks page.

Contact

Questions, corrections, or a benchmark you'd like covered? Email hello@spawnmetrics.com.