Digital Discovery Tools

Free digital marketing calculators & utilities

47 practical tools for publishers, marketers, creators and advertisers. No signup and no external API required.

Free toolAdSense Earnings CalculatorEstimate daily, monthly and yearly website advertising revenue from pageviews and Page RPM.Open tool →Free toolCPM CalculatorCalculate cost per thousand impressions for display, video and social advertising campaigns.Open tool →Free toolCPC CalculatorCalculate the average cost of each advertising click from total campaign spend and clicks.Open tool →Free toolCPA CalculatorCalculate cost per acquisition or conversion using campaign spend and completed conversions.Open tool →Free toolROAS CalculatorMeasure advertising return on ad spend as a ratio and percentage from revenue and ad spend.Open tool →Free toolEngagement Rate CalculatorCalculate social media engagement rate using likes, comments, shares, saves and followers or reach.Open tool →Free toolWebsite Revenue CalculatorEstimate monthly and yearly website revenue from display ads plus affiliate, sponsorship and other income.Open tool →Free toolYouTube Money CalculatorEstimate creator revenue from monthly video views and a planning RPM, with traffic targets and scenarios.Open tool →Free toolInstagram Engagement Rate CalculatorCalculate Instagram engagement by followers or reach using likes, comments, shares and saves.Open tool →Free toolTikTok Engagement Rate CalculatorCalculate TikTok engagement by views or followers using likes, comments, shares and saves.Open tool →Free toolUTM BuilderCreate campaign URLs with UTM source, medium, campaign, term and content parameters.Open tool →Free toolSERP Preview ToolPreview a search result title, URL and meta description before publishing a page.Open tool →Free toolPage RPM CalculatorCalculate Page RPM from estimated revenue and pageviews, or reverse the formula to estimate revenue.Open tool →Free toolCTR CalculatorCalculate click-through rate from clicks and impressions, with target click planning.Open tool →Free toolConversion Rate CalculatorCalculate conversion rate from visitors or clicks and completed conversions, with target planning.Open tool →Free toolGoogle Ads Budget CalculatorPlan Google Ads performance from budget, CPC, conversion rate and average order value.Open tool →Free toolMeta Ads CalculatorPlan Facebook and Instagram ad scenarios from budget, CPM, CTR, conversion rate and order value.Open tool →Free toolTikTok Money CalculatorEstimate creator revenue scenarios from monthly TikTok views and a user-defined RPM range.Open tool →Free toolWord Counter & Reading TimeCount words, characters, sentences and estimate reading time directly in your browser.Open tool →Free toolKeyword Density CheckerAnalyze how often a word or phrase appears in text and calculate simple keyword density.Open tool →Free toolYouTube RPM CalculatorCalculate creator RPM from YouTube revenue and views, or estimate revenue at a target RPM.Open tool →Free toolBreak-even ROAS CalculatorEstimate the minimum ROAS required to cover ad spend from gross margin and optional variable costs.Open tool →Free toolFacebook Engagement Rate CalculatorCalculate Facebook engagement by followers or reach using reactions, comments, shares and saves.Open tool →Free toolLinkedIn Engagement Rate CalculatorCalculate LinkedIn engagement from reactions, comments, reposts and clicks against impressions or followers.Open tool →Free toolInstagram Money CalculatorModel monthly Instagram creator income from sponsored posts, Reels and other entered revenue streams.Open tool →Free toolInfluencer Rate CalculatorBuild a transparent sponsored-post pricing scenario from audience size, a user-defined base rate and engagement adjustment.Open tool →Free toolHashtag CounterCount total and unique hashtags, find duplicates and review hashtag length directly in your browser.Open tool →Free toolMeta Title & Description CheckerCheck title and meta description character counts with simple editing guidance before publishing.Open tool →Free toolRevenue Per Visitor CalculatorCalculate revenue per visitor and estimate revenue at a target value per visitor.Open tool →Free toolAd Frequency CalculatorCalculate average ad frequency from impressions and reach for Meta and other reach-based campaigns.Open tool →Free toolSchema Markup GeneratorGenerate starter JSON-LD for Article, Organization, LocalBusiness, Product and FAQPage schema types.Open tool →Free toolMeta Robots GeneratorBuild a robots meta tag with index, follow, snippet, archive and image-preview directives.Open tool →Free toolURL Slug Generator & CheckerTurn a title into a clean lowercase URL slug and review length, words and formatting.Open tool →Free toolOpen Graph & Social Preview ToolDraft Open Graph title, description, URL and image tags for social sharing previews.Open tool →Free toolKeyword Frequency AnalyzerAnalyze frequent words in pasted text with counts and percentages, excluding common English stop words.Open tool →Free toolReadability CheckerEstimate English reading ease from words, sentences and approximate syllable counts directly in your browser.Open tool →Free toolHTML Heading CheckerPaste HTML to count H1-H6 headings and review their order and text without uploading your page.Open tool →Free toolGoogle Ads Target ROAS CalculatorEstimate a planning target ROAS, maximum CPA and optional maximum CPC from margin assumptions.Open tool →Free toolEmail Open Rate & CTR CalculatorCalculate email open rate, click-through rate and click-to-open rate from delivered emails, opens and clicks.Open tool →Free toolInfluencer CPM CalculatorCalculate cost per thousand influencer impressions and optional cost per engagement from campaign cost.Open tool →Free toolProfit Margin CalculatorCalculate profit, profit margin and markup from revenue and total costs.Open tool →Free toolAffiliate Earnings CalculatorEstimate affiliate conversions, referred sales, commissions and earnings per click from your own assumptions.Open tool →Free toolSEO Website AnalyzerAnalyze a public webpage for title, meta description, headings, canonical, robots, social tags, schema, images and basic technical SEO signals.Open tool →Free toolSitemap CheckerDetect and inspect sitemap.xml, sitemap_index.xml or WordPress sitemaps, including status, XML type and discovered URLs.Open tool →Free toolRobots.txt TesterCheck a public robots.txt file, parse user-agent, allow, disallow and sitemap directives, and flag obvious crawl blocking issues.Open tool →Free toolRedirect CheckerTrace 301, 302, 307 and 308 redirects, view each hop and check the final HTTP status of a public URL.Open tool →Free toolBroken Link CheckerScan links found on one public webpage and identify working, broken, redirected, internal and external URLs.Open tool →