A/B Test Sample Size Calculator
Work out visitors per variant and how many weeks the test needs, from your baseline rate, minimum detectable effect, power and significance level.
Try it freeFree growth marketing tools
Cold emails, cold call scripts, headlines, LinkedIn hooks, SEO meta tags, pricing models, ICE scores and more. Every tool below runs as plain JavaScript inside this page, so results appear instantly and work the same whether you are the first visitor today or the ten thousandth.
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A/B Test Significance Calculator
Run a real two-proportion z-test on your split test. Get the z-statistic, an exact two-tailed p-value, and a confidence interval on the difference.
Try it freeCAC Payback Period Calculator
Work out how many months of gross profit it takes to earn back one customer acquisition, adjusted for margin and for churn inside the payback window.
Try it freeLTV to CAC Ratio Calculator
Calculate LTV to CAC properly: gross profit in the numerator, plus the same ratio recomputed over 12, 24 and 36 months so you can see the extrapolation.
Try it freeMarketing Budget Allocator
Split a monthly marketing budget across eight channel buckets using stage, motion and goal weightings, with a minimum viable spend check on every line.
Try it freeNet Revenue Retention Calculator
Calculate gross and net revenue retention from your MRR movements, with new-customer revenue correctly excluded and the inflated version shown for contrast.
Try it freePipeline Coverage Calculator
Work out the pipeline your quota actually requires from your own win rate, then see the gap in dollars, in deals, and in new opportunities per week.
Try it freeUTM Campaign Tagger
Builds a clean, correctly tagged campaign URL and flags the naming mistakes that quietly break attribution reporting.
Try it freeCompetitor Ad Deconstructor
Scores a competitor's ad copy on 8 persuasion patterns and builds a counter-positioning angle from whatever it left out.
Try it freeAI Lead Magnet Ideator
Generates 10 lead magnet concepts across proven formats, ranked by value against effort so you know what to build first.
Try it freeB2B Case Study Extractor
Turns a before and after into a full case study narrative plus real percentage change and run-rate math, not invented figures.
Try it freeContent Marketing ROI Calculator
Model 24 months of content spend, traffic and revenue with a real ranking ramp, and find the month cumulative revenue overtakes cumulative cost.
Try it freeContent Repurposing Matrix
Takes one title and three takeaways and rebuilds them into 10 channel-native assets, each fit to that platform's real limits.
Try it freeAI B2B Headline Copywriter
Writes 15 B2B headlines across 5 conversion categories from your product, audience and outcome, plus which one to test first.
Try it freeAbandoned Cart Sequence Writer
Writes a 4-email abandoned cart sequence that actually changes depending on the real reason the customer left.
Try it freeGrowth Experiment Planner
Scores a growth experiment with the ICE framework and returns a real hypothesis, a kill criterion and a sprint order.
Try it freeViral Giveaway Planner
Plans a giveaway referral loop and calculates an actual viral coefficient, plus fraud checks and legal disclosure requirements.
Try it freeWebinar Funnel Calculator
Model every stage of a webinar funnel with real numbers: registrants, attendees, buyers, revenue, cost per attendee, and the stage worth fixing first.
Try it freeNewsletter Subject Line Tester
Score a subject line on length, truncation points, caps ratio, punctuation, emoji, merge tokens and preview text overlap. Every deduction shown. Free.
Try it freeOnboarding Email Sequence Writer
Build an onboarding email sequence timed to your trial window and product complexity, with every send aimed at one activation action. Free, no signup.
Try it freePush Notification Writer
Write push notification variants and measure each against real iOS and Android truncation points, plus the permission cost of your send frequency. Free.
Try it freeSMS Marketing Copywriter
Write an SMS campaign and see the real encoding arithmetic: GSM-7 or UCS-2, septet count, segment size, and exactly what you will be billed. Free.
Try it freeWin-Back Email Writer
Write a win-back sequence shaped by how long they have been gone and why they left, ending in an honest permission-based sunset email. Free tool.
Try it freeCold Calling Scriptwriter
Builds a cold call opener, a discovery ladder and objection handling for the 5 most common B2B objections you will hear.
Try it freeCold Email Generator
Builds a complete B2B cold email from a proven framework, chosen by psychological angle instead of guessing at wording.
Try it freeAd Angle Generator
Generate nine genuinely different ad angles from a real taxonomy, each with its hook, its mechanism, the evidence it needs and the objection that kills it.
Try it freeFacebook Ad Copy Generator
Write Meta ad copy by awareness stage, then see exactly where the mobile feed cuts it off with "See more" and what stays visible above the fold.
Try it freeGoogle Ads Headline Generator
Generate 15 responsive search ad headlines and 4 descriptions, each measured against the 30 and 90 character limits with a pass or fail flag. Free.
Try it freeLanding Page Message Match Auditor
Score the match between your ad and your landing page on word overlap, keyword presence, offer continuity and specificity, with the mismatches named.
Try it freeROAS Break-Even Calculator
Work out your break-even ROAS from gross margin, then see profit per order, an incrementality haircut, a returns stress test and repeat revenue.
Try it freeSaaS Pricing Model Calculator
Calculates real LTV, CAC guardrails and computed tier price points from your current price, customers and churn.
Try it freeB2B Customer Avatar Builder
Builds a structured B2B ICP: a buying committee sized to the company, objections in order, and the triggers that create demand.
Try it freeDiscovery Call Question Builder
Build a sequenced discovery call: minutes per stage, questions tagged gather or realise, qualification bar, compelling event and buying process questions.
Try it freeLead Scoring Model Builder
Build a point-based lead scoring model with computed weights, a threshold set by sales capacity rather than guesswork, negative scoring and a decay rule.
Try it freeReferral Program Designer
Compute the maximum affordable referral incentive from your margin and payback window, projected referral volume, effective CAC, and the program mechanics.
Try it freeSales Battlecard Builder
Build a competitive battlecard: where you win, where you lose, landmine questions, the traps they will set, and the deals worth walking away from.
Try it freeSales Objection Handler
Paste the objection as the prospect said it. Get its type, a genuine-versus-brush-off score, the question to ask first, the proof required, and the next step.
Try it freeOpen Graph Tag Generator
Generate every og: and twitter: meta tag, with your title and description measured against the point each platform truncates and the image spec checked.
Try it freeReadability Scorer
Paste text to get real Flesch Reading Ease and Flesch-Kincaid Grade Level scores, sentence length distribution, and the three longest sentences to cut.
Try it freeRobots.txt Generator
Generate a robots.txt with the two classes of AI crawler handled separately: citation bots that put you in AI answers, and training bots that do not.
Try it freeSchema Markup Generator
Generate valid JSON-LD for Article, Product, FAQPage, LocalBusiness, Event, SoftwareApplication or BreadcrumbList, with required and optional fields split.
Try it freeSEO Meta Tag Generator
Generates title tags and meta descriptions, each one measured against the exact limits that get them cut off in search results.
Try it freeSEO Traffic Forecaster
Paste a keyword list with monthly volumes, pick a position, and get projected clicks per keyword and in total, using a CTR curve you can read.
Try it freeURL Slug Generator
Turn any page title into a clean URL slug: transliterated, punctuation stripped, truncated on a word boundary, with an ambiguity check on stop words.
Try it freeAI LinkedIn Hook Optimizer
Diagnoses what is weak about your LinkedIn draft opener and rewrites it 8 ways using 8 named, structurally different hook patterns.
Try it free