Keyword Surfer is a popular Chrome extension that shows search volume, CPC, and related keywords directly in Google results. Below is a curated list of 20 free (or freemium) SEO tools that provide similar keyword research, SERP analysis, and traffic insights without a paid subscription.
Get targeted exposure with custom position pinning and highlighted placement.
Neil Patel’s tool offers keyword ideas, search volume, SEO difficulty, and content suggestions with a generous free daily quota.
Official Google Ads tool delivering keyword volume ranges, competition, and bid estimates—ideal for PPC and SEO planning.
Visualizes questions and prepositions people ask around a keyword, providing a rich source of long‑tail ideas (free limited searches per day).
Generates massive keyword lists from Google Autocomplete in seconds; exportable CSV for quick analysis.
Pulls autocomplete suggestions from Google, YouTube, Bing, Amazon, and more; free tier shows up to 750+ suggestions per search.
Aggregates keyword suggestions from Google, Bing, Yahoo, Amazon, Wikipedia, and YouTube in a single, easy‑to‑use interface.
Chrome extension that displays domain authority, page authority, and keyword metrics directly in SERPs.
All‑in‑one SEO toolbox for Chrome/Firefox offering keyword density, SERP analysis, and on‑page SEO audit features.
Shows search interest over time, related queries, and geographic popularity—great for spotting seasonal keywords.
Free suite for verified site owners, providing keyword rankings, site audit, and backlink data.
Offers keyword research, search performance reports, and SEO diagnostics for sites indexed by Bing.
Russian search engine’s keyword planner showing query volumes, related terms, and seasonal trends (useful for international research).
Extracts keywords from Reddit posts and comments, revealing niche topics and community‑driven search intent.
Generates keyword ideas with estimated monthly searches and competition level for Google and Bing.
Provides limited daily keyword research, rank tracking, and site audit capabilities without a paid plan.
Shows a handful of top organic and paid keywords for any domain, plus basic CPC data.
Chrome extension that offers on‑page SEO analysis, SERP preview, and keyword extraction from any page.
Lightweight extension that overlays search volume and SEO difficulty directly on Google results pages.
Offers a limited number of keyword lookups per day with volume, difficulty, and SERP analysis.
Desktop crawler that extracts on‑page keywords, meta data, and provides basic SEO audit for up to 500 URLs.