# extragmail — Product Overview ## TL;DR extragmail turns one Gmail address into thousands of working aliases using Gmail's built-in dot and plus-tag rules. Everything runs in your browser. Free, no account. ## What it does extragmail generates unique Gmail addresses that all deliver to the same inbox. It supports four generation modes — dot-variants, plus-tags, category presets, and custom patterns — plus a mixed mode that combines them. ## Core functionality - Dot-variant generator: enumerate or randomly sample valid dot placements - Plus-tag generator: append `+tag` segments by category, custom list, or random token - Custom pattern engine: tokens like `{first}`, `{last}`, `{tag}`, `{date:YYYYMMDD}`, `{n:4}`, `{rand:6}` - Mixed mode: combine dot-variants with plus-tags in a single alias - Site-specific generator: one alias per service for 100+ popular sites - Validation: Gmail-safe characters, length warnings, duplicate prevention - Bulk export: TXT, CSV, XLSX, or copy-all-to-clipboard - Local library: save, name, import (TXT/CSV), and re-export batches - Chrome extension: insert aliases into any signup form ## Key features (machine-readable) | Feature | Description | Status | |---|---|---| | Dot-variant generator | Up to 2^(n-1) unique placements | Stable | | Plus-tag generator | Custom, category, or random tags | Stable | | Custom patterns | Token-based template engine | Stable | | Quantity range | 50 to 10,000+ per batch | Stable | | Export formats | TXT, CSV, XLSX | Stable | | Saved batches | Browser localStorage | Stable | | Import TXT/CSV | Validation + dedup on import | Stable | | Site-specific aliases | 100+ predefined services, per-category CSV | Stable | | Chrome extension | MV3, context menu + popup | Stable | | Validation | Gmail-safe charset, length checks | Stable | ## Ideal customer profiles - Privacy-conscious consumers who want to know which sites leak their email - Developers and QA engineers testing email-related flows - Marketers and growth teams tracking signup sources - Power users running many trials, newsletters, and accounts ## Supported integrations - Gmail (personal `@gmail.com`) - Google Workspace custom domains (same alias rules apply) - Chromium-based browsers: Chrome, Edge, Brave, Arc, Opera - Any signup form (via the Chrome extension's context menu) ## Benefits - Free, forever — no card, no account, no limits - 100% client-side — your Gmail address never leaves your browser - Trace spam back to the exact site that leaked your address - Replace fragile temp-mail services that expire and lose accounts - Generate up to 10,000+ aliases in one click - Works offline once loaded ## Limitations - Plus-tag (`+`) is rejected by a small minority of signup forms; dot-variants work as a fallback - Aliases all forward to your real Gmail inbox — they are not separate mailboxes - Saved batches live in the browser's localStorage and don't sync across devices ## Related pages - Pricing: /pricing.md - FAQ: /faq.md - AI landing page: /llm.html - Use cases: /use-cases