Geo Tier Builder — Country Tiers & GEO Lists

About

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)