What tools can I use to get keyword data?

Google Search Console (free), Ahrefs, Semrush, Moz, Ubersuggest, and SpyFu all export keyword lists. Even a plain text list from any source works.

Keyword Gap Analysis — Find Keywords Your Competitors Rank For

Paste your keyword list and a competitor's into the two boxes. Instantly see the gaps — keywords they rank for that you don't. Free, private, no account needed.

Run Keyword Gap Analysis → See a Live Example

List A — Your Keywords6 items

List B — Competitor Keywords7 items

Paste your keywords and click to find gaps

Live preview · Open the full tool to export results and run larger keyword analyses.

How to Run a Keyword Gap Analysis

A keyword gap analysis tells you which keywords a competitor ranks for that you don't — these are content and SEO opportunities you haven't captured yet. Here's how to do it step by step using this tool:

Export your current ranking keywordsUse Google Search Console (free), Ahrefs, Semrush, or any SEO tool. Download the keywords you currently rank for as a CSV and copy the keyword column.
Paste your keywords into List AOne keyword per line. Keyword data from most SEO tools pastes cleanly without any extra formatting.
Export your competitor's keywordsIn Ahrefs or Semrush, search for your competitor's domain and export their organic keywords. Copy that keyword column.
Paste competitor keywords into List BThese are the keywords you'll compare against your own list.
Read your keyword gapThe "Only in B" column is your keyword gap — terms your competitor ranks for that you don't yet. Export this as CSV and prioritize it in your content plan.

What to Do With Your Keyword Gap

Create new contentEach gap keyword is a page or article you're missing. Target the high-volume, low-competition gaps first.
Optimize existing pagesSome gap keywords may already appear on your site but aren't targeted — update meta titles and headings.
Find content clustersGroup related gap keywords into topic clusters to plan a content sprint.
Compare against multiple competitorsRun the analysis once per competitor and compile your master gap list from all results.
Track overlap tooThe "Common" section shows keywords you both rank for — these are your competitive battlegrounds where rank improvement matters most.
Export and prioritizeDownload the gap list as CSV and sort by search volume in your SEO tool to prioritize the biggest opportunities.

Frequently Asked Questions

What is keyword gap analysis?

Keyword gap analysis compares the keywords you rank for against those a competitor ranks for. The "gap" is the keywords they have that you don't — representing content and SEO opportunities you haven't captured yet.

How do I do a keyword gap analysis for free?

Export your keywords from Google Search Console (free) and export a competitor's keywords from a free trial of Semrush or Ahrefs. Paste your keywords into List A and the competitor's into List B. The "Only in B" section is your keyword gap.

Can I compare keyword lists from different SEO tools?

Yes. This tool works with any pasted text — Ahrefs exports, Semrush exports, Google Search Console data, or even manually typed keyword lists. As long as you can copy the keyword column, you can compare them.

Can I compare against multiple competitors?

Yes, but one comparison at a time. Run the analysis for Competitor 1, export the gap list, then run again for Competitor 2. Combine the CSV exports for your complete keyword gap.

How many keywords can I compare at once?

The demo above handles short lists. The full tool at listcomparetool.com handles thousands of keywords in seconds.