Tiny tools for marketers. Made by Postwyse.
Standalone calculators we built while shipping our own platform. No login, no email gate, no upsell on the answer page.
URL / SEO Inspector
Paste any URL. Get meta tags, OG preview, headings, link counts, alt-text coverage, and an issues punch list.
Engagement Rate Calculator
Instagram, TikTok, X, LinkedIn — one calculator for every platform.
Influencer Pricing Calculator
Honest mid-range rate based on followers, engagement, and platform.
Earned Media Value (EMV) Calculator
Translate impressions and engagements into a dollar-equivalent number.
Headline Analyzer
AI-scored headlines with concrete edits in your voice.
Hashtag Generator
AI-tiered hashtag sets (broad / niche / specific) for Instagram, TikTok, X, LinkedIn, YouTube.
A/B Test Sample Size Calculator
Per-variant sample size + days to significance, before you launch the test.
Readability Analyzer
Word count, reading time, Flesch-Kincaid, Gunning Fog, and your longest sentences flagged.
Email Spam Score Checker
Score subject + body 0-100 for deliverability. Trigger-word detection plus AI verdict and one concrete fix.