Campaign TrackingCSV Cleaner & Deduplicator
Validate exported campaign spreadsheets, trim cells, check quotes, remove repeated rows and download a cleaned file without uploading anything.
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Practical tools for your next big idea.
Make better decisions about advertising, publishing, SEO and creative work. No sign-up, no paywall, and no software installation.
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Twenty-one useful browser-based tools, with many more possible as the collection grows.
21 tools available
Campaign Tracking
AI SafetyAI Prompt Injection Review
Check pasted untrusted text for common manipulation indicators; educational, local and free.
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AI SafetyAI Agent Permission Planner
Draft a least-privilege policy with human approval gates for higher-risk actions.
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AdvertisingDisplay Banner Size Preview
Compare popular display sizes including 728×90, 300×250, 336×280, 300×600 and 320×100.
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AdvertisingCPM Calculator
Calculate cost per thousand impressions and estimate what a campaign budget can buy.
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AdvertisingCTR Calculator
Find click-through rate and compare clicks with total impressions.
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AdvertisingCPC Calculator
Measure cost per click and estimate clicks from a planned budget.
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AdvertisingROAS & ROI Calculator
Compare advertising revenue with media spend and return on investment.
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Campaign TrackingUTM URL Builder
Generate campaign-tagged URLs without sending inputs to a server.
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CopywritingAd Copy Length Checker
Check Google Search responsive ad headline and description lengths.
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CopywritingWord & Character Counter
Measure text length, paragraphs, sentences and approximate reading time.
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Website & SEOSEO Meta Preview
Preview a page title, description and URL in a search-style snippet.
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Website & SEOColour Contrast Checker
Check WCAG contrast ratios for readable accessible interfaces.
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Design & ImagesImage Resizer & WebP Converter
Resize uploaded artwork and export PNG, JPEG or WebP entirely locally.
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Publishing & AdvertisingPublisher eCPM & Page RPM Calculator
Calculate revenue per thousand ad impressions and pageviews for a publishing property.
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AdvertisingBreak-Even ROAS Calculator
Use contribution margin to find the minimum advertising ROAS needed to break even.
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Website DevelopmentJSON Formatter & Validator
Validate, format, minify and download JSON entirely in the browser.
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AdvertisingCPA / Cost Per Acquisition Calculator
Calculate tracked acquisition cost and forecast a simple budget scenario.
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Design & ImagesSocial Image Crop & Compression
Crop or letterbox and export images for useful social and advertising ratios.
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Website DevelopmentHTML Escape & Unescape
Convert special characters and common HTML entities privately.
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Website & SEOOpen Graph & Social Card Preview
Preview a link-sharing card with your title, description and a local image—without uploads or an account.
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