PocketKit
Going-global tools for independent developers
Free tools for independent developers and global products, covering domains, email, VAT, payment fees, international pricing, UTM, localization and privacy policies.
What can you do with these tools?
This collection follows the practical workflow of launching a product internationally: inspect domains, DNS and email authentication; estimate Stripe fees and VAT; plan international pricing; build UTM links and social metadata; and check hreflang, localization and deployment configuration. Pages that query live DNS, email or network data identify the request destination. Tax rates and platform rules change, so verify official sources before making formal decisions.
Start here
Core tools
DNS Lookup
Query A / AAAA / MX / TXT / NS / CNAME / CAA records via Cloudflare DNS-over-HTTPS, right in your browser
Email Deliverability Check (SPF/DKIM/DMARC)
Check a domain's SPF, DKIM and DMARC records with fix-it advice to improve inbox placement for outbound mail
VAT / GST Calculator
Look up VAT/GST standard rates by country and convert net ⇄ gross for cross-border invoicing
Stripe Fee & Net Calculator
Compute Stripe fees and net payout, reverse-solve the charge for a target net, plus international / FX surcharges
Multi-Currency & Charm Pricing
Convert one base price to many currencies with .99 / round charm pricing for global pricing pages; editable rates, offline
Privacy Policy Generator
Generate an English privacy policy for App Store / Google Play / Stripe with GDPR / CCPA clauses
UTM Link Builder
Build UTM-tagged tracking URLs with consistent source/medium/campaign naming for ads, email and social attribution
hreflang Tag Generator
Generate hreflang and x-default tags for multilingual sites (subdir / subdomain / query strategies) to avoid duplicate content
Test Card Numbers & Luhn Check
Validate card numbers (Luhn) and brand, generate valid test numbers, and list common gateway test cards
Keep exploring
More tools (8)
Stripe vs Lemon Squeezy vs Paddle Comparison
Compare net payout, MoR global tax filing and processing fees between Stripe, Lemon Squeezy and Paddle
Purchasing Power Parity (PPP) Pricing Calculator
Calculate localized PPP discount pricing for 40+ countries based on World Bank indices and export JSON
Deploy Config Generator
Generate _headers / _redirects (Cloudflare Pages / Netlify) and vercel.json — SPA fallback, security headers, caching, redirects
CORS Config Generator
Configure CORS headers visually and generate Express / Nginx / Cloudflare Worker snippets, with credentials/wildcard warnings
robots.txt Generator
Build robots.txt from per-user-agent groups with Allow/Disallow, Crawl-delay, Sitemap and one-click AI-crawler blocking
i18n JSON Checker
Diff two locale JSON files for missing/extra keys and placeholder mismatches — essential for frontend i18n
Timezone Meeting Planner
From your local time, see the same moment across US/EU/Asia zones with day-offset — for scheduling meetings and launches
Open Graph Meta Generator
Generate Open Graph and Twitter Card meta tags with a live social-card preview for rich link previews on Facebook, X and chat apps
Decision guide
Global product launch path
| Stage | What to check | Starting tool |
|---|---|---|
| Infrastructure | Domain, DNS and deployment status | DNS Lookup |
| SPF, DKIM, DMARC and delivery risk | Email Deliverability Check (SPF/DKIM/DMARC) | |
| Pricing | VAT, payment fees and multi-currency display | VAT / GST Calculator |
| Acquisition | UTM parameters and sharing metadata | UTM Link Builder |
FAQ
Frequently asked questions
Which going-global tools require a network connection?
DNS, email-authentication and other live network checks require a connection. Form generators, UTM builders, pricing planners and some configuration tools generally process in the browser. Each page states its data handling.
Can VAT and payment-fee results be used directly for filing?
No. They are estimates and standard-rate references and do not cover every exemption, local rule or merchant contract. Verify tax-authority and payment-provider information before filing, invoicing or final pricing.
How should I choose tools for a global launch?
Use them in workflow order: check domains, deployment and email authentication; review localization and hreflang; estimate tax and international pricing; then build UTM and social-sharing metadata.