Tool directory
Every tool is free, rate-limited, and logged for abuse protection — not behind a paywall.
Marketing and campaigns
Build campaign URLs with UTM parameters or audit a list of links for missing tags.
Scan a page for GA4, GTM, Meta Pixel, Google Ads, LinkedIn, and TikTok tags.
Find a public Facebook Page ID or Instagram user ID from a profile URL — not Business Manager ID.
Check Google Ads and Meta ad copy against common UI truncation budgets.
Preview subject truncation, flag spammy phrasing, and check preheader length.
Pooled two-proportion z-test with lift, 95% CI, and sample-size adequacy checks.
Contribution-margin break-even ROAS, CPA, and target CPA for desired profit.
Simple lifespan or churn-based contribution LTV, CAC, ratio, and payback months.
Estimate revenue at risk from abandoned carts and +1pp completion recovery.
Remove duplicate lines with trim, casefold, and sort options.
Match width×height to common feed, story/reel, and card aspect presets.
Estimate spoken timing at 120–180 WPM and flag hooks longer than 3 seconds.