DIRECTORY · CATEGORY
Keyword Research Tools
Tools for finding keyword ideas, search volume, and competitive keyword gaps. 14 tools, sorted by what's actually running underneath — full tier criteria →
01AlsoAskedPURE WRAPPERRecursively scrapes Google's People Also Ask boxes into a visual question tree — DataForSEO and SerpApi already sell the same recursive PAA endpoint.CONF HIGH$12+/MO02AnswerThePublicPURE WRAPPERSame live-scrape mechanic as AlsoAsked, but pulls autocomplete suggestions — not People Also Ask boxes — across 6+ platforms, plus a bundled AI-writing suiteCONF HIGH$20+/MO03GlimpseAPI STITCHLayers claimed 'absolute' search-volume numbers and multi-platform trend signals on top of Google Trends' own free relative index — a free extension, with all paid pricing kept off its own site.CONF MEDIUMFREE (EXTENSION) — API/ENTERPRISE QUOTE-ONLY04KeySearchAPI STITCHDoesn't disclose where its keyword or backlink data comes from — only rank tracking is clearly its ownCONF MEDIUM$24+/MO05Keyword ChefAPI STITCHReal-time SERP-based keyword filtering with an undisclosed data source behind its volume and intent numbers.CONF MEDIUM$29+/MO06Keyword InsightsAPI STITCHClusters keywords pulled from free public sources (Autocomplete, Reddit, Quora, PAA) using an undisclosed language-analysis method, then hands off to a hosted AI model for briefs and articles.CONF MEDIUM$58+/MO (CREDIT-BASED)07Keyword ToolPURE WRAPPERSame live-autocomplete-scrape mechanic as AnswerThePublic, but pulls from 15 platforms and enriches results with Google/Bing ad-platform volume data instead of a bundled AI writerCONF HIGH$88+/MO08Keywords EverywhereAPI STITCHSearch volume is literally Google Keyword Planner's own numbers; domain/backlink metrics are Moz's — the product is the browser overlay, not the dataCONF HIGH$80+ (PAY-AS-YOU-GO CREDITS)09LowFruitsAPI STITCHPulls keyword ideas from live Google Autocomplete like AnswerThePublic, then scores SERP weakness against an accumulated 150K-site database instead of a single competitor metricCONF MEDIUM$20.75+/MO10Mangools (KWFinder)API STITCHBacklink data licensed from Majestic, not self-crawledCONF MEDIUM$49+/MO11SpyFuAPI STITCHKeyword/ranking data pulled straight from Google; backlinks limited to top-100 ranking pages; the real asset is a decade-plus archiveCONF HIGH$39+/MO12TwinwordPURE WRAPPERA bundle of pay-per-call text-analysis APIs (sentiment, emotion, keyword suggestion) marketed to developers — keyword-suggestion data licensed from DataForSEO, no own crawler or index found.CONF MEDIUM$19+/MO PER API13WordtrackerAPI STITCHReal domain/SERP tooling built on keyword data it says blends Google's numbers with an unexplained 'proprietary' source of its ownCONF MEDIUM$17+/MO14WriterZenPURE WRAPPEROne-time-purchase keyword clustering + AI writing suite — Google-sourced keyword data, GPT-4o mini drafting; no proprietary index found.CONF MEDIUM$135+ ONE-TIME (LIFETIME)