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Marketing tools
A compact toolkit for day-to-day marketing work — link tracking, ad copy checks, calculators, and campaign hygiene. Every tool is free, runs in your browser, and works without an account.
10 toolsNo login requiredUpdated regularly
Most useful right now
Hand-picked starting points if you're new to the toolkit.
By category
Every Marketing utility, grouped by job-to-be-done.
Tracking & links4
Build, inspect, and clean campaign URLs.
Ads & creative2
Validate copy and standardize naming before you ship.
Numbers & planning4
Quick math for spend, pricing, and scheduling.
- ROAS / CAC / LTV CalculatorCalculate return on ad spend, CAC, and lifetime value.
- Margin & Markup CalculatorCompute margin, markup, and profit with reverse-calc.
- CSV Audience List CleanerNormalize headers, trim spaces, and dedupe rows in pasted CSV.
- Time Zone Overlap PlannerCompare time zones and visualize shared working hours.
Guides & references
Short, practical articles to help you get more out of the tools.
- UTM parameters explainedWhat each UTM parameter does, when to use term and content, and the small mistakes that quietly break your campaign reports.
- UTM builder examples for common channelsCopy-ready UTM examples for Google Ads, Meta, LinkedIn, newsletters, and partner placements. Source, medium, and campaign filled in.
- Google Ads headline character limitsHeadline limits for Google responsive search ads, how many headlines to write, and what gets truncated on mobile vs desktop.
- Google Ads description character limitsDescription limits for Google responsive search ads, how many to write, and how to use the full 90 characters without sounding robotic.
- What is a good ROAS?Healthy ROAS depends on margin, channel, and lifecycle. Here's how to think about benchmarks instead of chasing a single number.
- What is a good LTV:CAC ratio?The 3:1 rule, where it comes from, when it's wrong, and how to interpret your LTV:CAC ratio in early-stage vs mature businesses.
- How to calculate CACThe CAC formula, what to include in marketing cost, paid vs blended CAC, and the most common mistake that makes the number look better than it is.
- How to clean a CSV for ad platform uploadsAudience uploads fail on whitespace, encoding, and duplicate rows. Here's a quick checklist before you push a list to Google, Meta, or LinkedIn.
- Campaign naming convention examplesReal naming patterns for paid campaigns: tokens to include, separators to use, and how to keep names readable across reporting tools.
- Slug best practices for marketing assetsHow to name URLs, blog post slugs, and creative files so they stay readable, sortable, and safe across CMSes, ad platforms, and CDNs.
Looking for something specific? Search all 10 tools or request a new one.