Free tools
Free tools for founders who care about revenue
Simple, no-signup calculators and utilities for growing — and measuring — a social-first business. Every one runs in your browser.
Social media
Cross-Post Checker
Paste one caption. See what breaks on each platform before you post.
Open tool →
Tweet Character Counter
Count characters as you write and stay under the 280 limit.
Open tool →
Twitter Thread Splitter
Turn a long draft into clean, numbered 280-character tweets.
Open tool →
Engagement Rate Calculator
See your true engagement rate across likes, comments and shares.
Open tool →
Revenue & SaaS metrics
MRR Calculator
Turn customers and price into Monthly Recurring Revenue.
Open tool →
ARR Calculator
Project Annual Recurring Revenue from your MRR.
Open tool →
Churn Rate Calculator
Measure how fast you’re losing customers each period.
Open tool →
Customer LTV Calculator
Estimate the lifetime value of a customer.
Open tool →
CAC Calculator
Work out your Customer Acquisition Cost.
Open tool →
LTV:CAC Ratio Calculator
Check whether your unit economics actually work.
Open tool →
Marketing & attribution
UTM Link Builder
Build tagged tracking links for campaigns in seconds.
Open tool →
Revenue Per Post Calculator
See what one social post is really worth.
Open tool →
Conversion Rate Calculator
Turn visitors and conversions into a clean percentage.
Open tool →
Social Media ROI Calculator
Measure the return on your social media effort.
Open tool →
Content & writing
Word & Character Counter
Count words, characters, sentences and reading time instantly.
Open tool →
Text Case Converter
Switch text between UPPERCASE, lowercase, Title and Sentence case.
Open tool →
Hashtag Generator
Turn a caption or keywords into ready-to-use hashtags.
Open tool →
Caption Cleaner
Strip messy spacing and extra line breaks from a caption.
Open tool →
Developer & utility
These tools measure the metrics. seenpaid moves them.
Post to X, Bluesky, LinkedIn, Instagram, Facebook & TikTok from one place — then see exactly which posts made money, matched to your Stripe.
Start your 7-day free trial →