Keyword research tools
From free idea generators like Soovle to planning platforms like Clearscope, compare which search metrics each tool shows and how many lookups a plan allows.
Based on 11 tools in our database, reviewed June 2026.
| Details | Pricing | Free plan | Free trial | Best for | Review | |||
|---|---|---|---|---|---|---|---|---|
 Clearscope | 7.7 / 10 | Paid | $129/mo | — | — | Enterprise and agency content teams publishing 10+ pieces per month | Review Clearscope | |
 Keywords Everywhere | 7.6 / 10 | Paid | $84/yr | — | — | Bloggers and content creators doing fast keyword ideation directly in Google | Review Keywords Everywhere | |
 Keyword Insights | 7.3 / 10 | Paid | $1/mo | — | Yes | SEO agencies managing multi-client keyword research at scale | Review Keyword Insights | |
 SEO.AI | 7.2 / 10 | Paid | $149/mo | — | Yes | In-house SEO teams wanting an AI agent to automate routine optimization tasks | Review SEO.AI | |
 marketmuse | 7.1 / 10 | Freemium | $99/mo | Yes | Yes | SEO content teams building topical authority clusters | Review marketmuse | |
 WriterZen | 7.0 / 10 | Paid | $23/mo | — | Yes | Solo SEOs and bloggers seeking an affordable all-in-one keyword-to-content workflow | Review WriterZen | |
 Long Tail Pro | 6.8 / 10 | Paid | $37/mo | — | Yes | Affiliate marketers and niche bloggers hunting low-competition keywords | Review Long Tail Pro | |
 Topicmojo | 6.8 / 10 | Freemium | $90/mo | Yes | Yes | SEO teams mining audience questions across Google, Reddit, and Quora | Review Topicmojo | |
 Soovle | 6.7 / 10 | Free | Free | Yes | — | Content creators brainstorming topic and keyword ideas | Review Soovle | |
 wordtracker | 6.6 / 10 | Freemium | $27/mo | Yes | Yes | Freelance SEOs needing affordable flat-rate keyword data | Review wordtracker | |
 tubemagic | 6.5 / 10 | Paid | ~$41/moapproximate | — | — | YouTube creators wanting AI-assisted script writing and idea generation | Review tubemagic |
Keywords Everywhere7.6 / 10Bloggers and content creators doing fast keyword ideation directly in Google
Keyword Insights7.3 / 10SEO agencies managing multi-client keyword research at scale
SEO.AI7.2 / 10In-house SEO teams wanting an AI agent to automate routine optimization tasks
marketmuse7.1 / 10SEO content teams building topical authority clusters
WriterZen7.0 / 10Solo SEOs and bloggers seeking an affordable all-in-one keyword-to-content workflow
Long Tail Pro6.8 / 10Affiliate marketers and niche bloggers hunting low-competition keywords
Topicmojo6.8 / 10SEO teams mining audience questions across Google, Reddit, and Quora
wordtracker6.6 / 10Freelance SEOs needing affordable flat-rate keyword data
tubemagic6.5 / 10YouTube creators wanting AI-assisted script writing and idea generation
About keyword research tools
Keyword research tools range from free idea generators to content-planning platforms priced like full SEO suites. Soovle is free with no signup but shows no search volume; Keywords Everywhere sells credits from $84/yr for 1 seat; Keyword Insights clusters keywords for agencies from $58/mo; and Clearscope and marketmuse, from $129/mo and $99/mo, focus on planning content around keywords. 4 of the 11 tools have a free plan and 7 offer a free trial. WriterZen is the rare one-time option, with a $135 lifetime price alongside its monthly plans.
What to compare before you choose
Search data or just ideas
Free idea tools such as Soovle show no search volume, difficulty or competition data, so they only help at the brainstorming stage. If you need numbers to prioritize topics, compare which metrics each paid tool includes and how many lookups a plan allows before you run out.
Credits, usage and per-site limits
Pricing units differ: Keywords Everywhere sells credit packs (Bronze includes 100k credits for 1 seat), Keyword Insights bills by usage, and SEO.AI prices per site from $149/mo, which our review warns becomes prohibitive for agencies with 10+ client sites. Map your monthly keyword volume and site count first.
Keyword finder or content optimizer
Clearscope and marketmuse use keyword data to plan and optimize content, and our reviews note neither covers backlink analysis; SEO.AI adds an AI agent that automates routine optimization. Long Tail Pro and wordtracker stay closer to classic keyword discovery for affiliates and freelancers, at lower flat prices from $37/mo and $27/mo.
Questions about keyword research software
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