UTM Builder
Build campaign URLs with source, medium, campaign, term, and content parameters.
Marketing
Plan, prepare, and evaluate marketing work with tools that support clearer campaigns and cleaner measurement.
Marketing ROI Calculator
Calculate ROAS, marketing ROI, break-even ROAS, required revenue, CAC, CPA, and target CPA from campaign spend and revenue.
URL Slug Generator
Convert titles, headlines, and keyword lists into clean URL slugs with separator, stop word, number, and length options.
Email Subject Line Tester
Preview your email subject line in various inbox sizes and score length, readability, punctuation, spam-risk words, and clear value.
AI Crawler Policy Builder
Build robots.txt Disallow rules for AI training crawlers, AI search crawlers, and user-triggered fetchers.
QR Code Generator
Generate QR codes for websites, Wi-Fi networks, text, email, phone numbers, SMS messages, contacts, events, and locations.
A/B Test Significance Calculator
Compare two A/B test variants with conversion rates, lift, p-value, confidence, winner guidance, and distribution charts.
Email Authentication Checker
Check SPF, DKIM, DMARC, and MX DNS records for a domain to find email authentication and deliverability issues.
Marketing tools help with the practical work around campaigns: building trackable URLs, testing subject lines, creating QR codes, checking email authentication, and evaluating campaign performance. They are meant for the small but important steps that sit between strategy and launch.
Marketers, founders, content teams, agencies, and operators use these utilities when accuracy and consistency matter. A clean UTM link, readable slug, or properly authenticated domain can prevent reporting confusion and make campaigns easier to review later.
Choose a builder when you need to create an asset, a checker when you need to verify setup, and a calculator when you need to evaluate outcomes. If you are preparing a campaign, start with naming and tracking before moving to measurement.