Amazon Keyword Expander & 250B SEO Optimizer
500+ Autocomplete Keyword Harvester, Statistical Word Frequency Ranking & 250-Byte Backend Optimizer
Technical Highlights
- 1-Click Turbo A~Z & 0~9 bulk 500+ keyword generation in < 1.5 seconds
- 250-Byte Backend Search Terms optimizer with live UTF-8 byte gauge
- Interactive Click-to-Swap word chips with greedy 240~250B backfill
- Banned Promotional Words Filter (removes best, top, cheap, free)
- Kindle KDP 7-slot keyword pack generator (≤ 50 chars per slot)
- 1-Click Google Sheets (TSV) clipboard copy and CSV data exports
- Dual Interface: Native Chrome Side Panel & Quick Extension Popup
- 100% Client-side privacy with polite token-bucket rate limiting
Market Differentiators
Why We Built This: Legacy Flaws vs Modern V3 Architecture
Engineered from first principles to resolve real user complaints, abandoned legacy codebases, and predatory subscription traps.
Harvest Speed & Paywalls
AMZ Suggestion Expander (200k users, 3.1★) runs slow single-thread queries and blurs high-intent keywords behind $9.99/mo.
Parallel harvesting pulls 500+ unblurred keywords in 1.5 seconds under a single $19.50 lifetime license.
250-Byte Backend Optimization
Sellers spend 30 minutes in Excel manually removing duplicates and guessing byte counts (exceeding 250 bytes drops all keywords!).
Interactive chip swapper automatically maximizes 240~250 bytes using exact UTF-8 byte math and greedy backfill.
Kindle KDP Formatting
Zero support for KDP 7-slot formatting; authors must manually count 50-character limits per slot.
Automated 7-slot KDP generator creates ready-to-paste keyword packs strictly under 50 characters each.
Workflow Alignment
Engineered for High-Performance Workflows
Amazon FBA / Private Label Sellers
Kindle Direct Publishing (KDP) Authors
Amazon PPC Campaign Managers
Engineering Overview
Stop guessing what Amazon buyers type into the search bar. Amazon Keyword Expander automatically queries the official Amazon autosuggest API across A~Z prefixes, A~Z suffixes, 0~9 numbers, and buyer intent modifiers, surfacing over 500 high-intent search queries in under 1.5 seconds.
Features an interactive 250-Byte Backend Search Terms optimizer that auto-deduplicates words, filters banned promotional keywords (best, top, cheap, free), and calculates exact UTF-8 byte weights to guarantee 100% Seller Central indexing compliance.
Includes a Kindle Direct Publishing (KDP) 7-Slot Generator that formats long-tail keywords across exactly 7 slots (≤50 characters each), plus 1-click Google Sheets TSV and CSV export.
Pricing
Start Free. Upgrade Anytime for Lifetime Power.
Instant in-app activation via Dodo Payments. Transparent lifetime license without recurring subscription traps.
Free Starter
Basic keyword discovery for everyday listing optimization
What's Included:
- 4 free searches per day
- Standard A~Z keyword generation
- Interactive 250-byte optimizer preview
- Single keyword clipboard copy
Early Bird Pro Lifetime
Unlimited keyword intelligence for professional Amazon & KDP sellers (In-App Upgrade)
What's Included:
- Unlimited Turbo A~Z & 0~9 bulk keyword searches
- Full 250-byte backend search terms optimizer with chip swap
- Kindle KDP 7-slot keyword pack generator
- 1-Click Google Sheets (TSV) and CSV export
- Native Side Panel workspace layout
- Lifetime commercial license with multi-device sync
Install the extension for free using the store buttons at the top of the page. Pro features are activated seamlessly inside the extension.