Geo Tier Builder — Country Tiers & GEO Lists

Geo Tier Builder helps webmasters, media buyers, and traffic managers build tiered country lists and GEO allow/block segments for targeting — fast, offline, and private. USE CASES - Build geo-targeting rules for TDS (301.st, Keitaro, Binom, etc.) - Create Cloudflare WAF or Workers geo-filter expressions - Generate nginx geo maps or JavaScript conditions - Prepare country segments for ad campaigns and affiliate offers - Normalize messy country lists from partners or legacy configs FEATURES - 249 countries with flags, 8 regions (EUR, CIS, NA, LATAM, APAC, MENA, AFR, OCE) - Built-in tier classification: T1, T2, T3 — with custom tier overrides - Filter by region, tier, meta-group (EU, EEA, G7, G20, BRICS, Five Eyes) - Allow / Block mode toggle - Favorites and search with instant filtering - Region select-all checkboxes - 10 export templates: 301.st TDS CSV, generic CSV/JSON/newline, Cloudflare WAF expression, Cloudflare Workers snippet, nginx map, JS condition - Smart import: auto-detects ISO2, ISO3, country names, mixed separators, Cloudflare expressions, JSON arrays - Custom presets: save, load, rename, delete your segments - Resizable output drawer — copy or download in one click - Dark / Light / System theme - English + Russian localization PRIVACY - Zero network requests — works 100% offline - Zero telemetry, analytics, or tracking - No remote code, no CDN dependencies - All data stays in local browser storage - Open source: https://github.com/investblog/geo-tier-builder - Permissions: storage only (for saving your presets and settings)