Free Google Ads Negative Keywords Generator vs Otterly.AI in 2026: Search-query hygiene vs AI visibility monitoring
Free Google Ads Negative Keywords Generator is a no-cost utility for drafting exclusions before a Search campaign wastes clicks. Otterly.AI monitors how brands appear in AI answers and adds GEO recommendations, citation analysis, and higher-tier API and MCP access.
Free Google Ads Negative Keywords Generator
Otterly.AI- Free Google Ads Negative Keywords Generator is free, requires no account connection, and creates a manual copy or download workflow.
- The generator distinguishes Recommended Negative Keywords from Review Before Adding, which is important for commercially ambiguous terms.
- Otterly.AI starts at $29 per month for monitoring across four base AI engines, with Gemini, Google AI Mode, and Claude available as paid add-ons.
- Otterly includes GEO audit recommendations, citation link analysis, domain ranking, and answer ranking monitoring, none of which the generator provides.
- Otterly API access and MCP integration begin on Standard at $189 per month, not the Lite plan.
- Use the generator to draft exclusions from a campaign-specific keyword and industry context. Use Otterly to monitor visibility after people move from search queries to AI answers.
- Neither tool replaces human judgement: exclusions can remove valuable demand, and AI-visibility recommendations still need validation against a brand’s category and content.
These products address different leaks in a marketing programme. Free Google Ads Negative Keywords Generator helps a search advertiser draft exclusions for unwanted intent before it spends budget on terms such as jobs, careers, definitions, or research queries that do not match the offer. Its useful restraint is that ambiguous terms like free, cheap, course, guide, PDF, and download go into a review bucket rather than an automatic blocklist. Otterly.AI watches a different discovery channel: brand mentions, citations, answer position, and domain patterns across AI engines, then provides a GEO audit with optimisation recommendations. The free generator is a practical pre-launch or hygiene tool for Google Ads. Otterly is a monitoring platform for teams trying to earn visibility in AI answers, not a way to manage negative keywords or live paid-search queries.
The tools at a glance
Free Google Ads Negative Keywords Generator
Free, industry-aware negative-keyword drafting tool that keeps uncertain exclusions in a review bucket
Free Google Ads Negative Keywords Generator from OnlineMarketingBull is a browser utility for a narrow but important Search-campaign job: drafting a starting exclusion list around a product, service, or main keyword. The user selects an industry and either Global or India, chooses broad, phrase, or exact negative formatting, then copies or downloads the resulting suggestions. It does not require a Google Ads login, which makes it useful before an account is connected or when a quick manual checklist is enough.
Its strongest design choice is separating Recommended Negative Keywords from Review Before Adding. Employment, study, definition, and research intent can be obvious exclusions for many commercial advertisers. Terms such as free, cheap, course, training, guide, PDF, and download are not universally bad. A service business may want to block them, while a training provider or lead-magnet strategy may not. The tool makes that uncertainty visible instead of presenting a generic long list as ready for bulk upload.
This is an ideation and formatting aid, not account intelligence. It does not import a Search Terms Report, sync queries, detect waste from actual spend, or publish an API, monitoring, or paid tiers. The output needs review against the advertiser’s offer, campaign structure, and real query data. For a new campaign or routine hygiene pass, free and manual can be exactly right. For continuing query analysis and account operations, a dedicated PPC platform is the relevant next step.
| Feature | Free negative keyword generator Free |
|---|---|
| Keyword-specific suggestions | Yes |
| Industry selection | Yes |
| Global and India options | Yes |
| Broad, phrase, and exact formats | Yes |
| Copy or download results | Yes |
| Published paid tiers | None published |
Otterly.AI
AI visibility monitoring with GEO audit recommendations, citation intelligence, and API and MCP access on higher plans
Otterly.AI is a generative-engine-optimisation platform, not a paid-search utility. It tracks brand visibility across ChatGPT, Google AI Overviews, Google AI Mode, Perplexity, Microsoft Copilot, Claude, and Gemini, although the entry plan covers four base engines and some engines are paid add-ons. The useful question it answers is where a brand appears in AI-generated answers, where competitors receive citations, and which domains shape that visibility.
The product goes beyond raw mention counts with answer ranking monitoring, domain ranking, citation link analysis, and a GEO audit that generates optimisation recommendations. That makes it useful to a content or SEO team deciding which gaps may improve citation frequency. Standard and Premium add API access and MCP integration for teams building programme workflows. Lite at $29 per month is positioned as an accessible monitoring entry point, while Standard at $189 per month is the first plan with those integrations.
Otterly does not generate negative keywords, connect to a Google Ads account for query management, or claim to identify wasted search spend. There is no white-label delivery on the stated standard plans, either. It is appropriate when AI-answer visibility is a tracked channel with a content response, not when an advertiser needs to clean up Search campaigns. The product can complement search hygiene, but it should not be sold internally as an automated PPC optimisation tool.
| Feature | Lite $29/mo | Standard $189/mo | Premium $489/mo | Enterprise From €1,000/mo |
|---|---|---|---|---|
| AI models tracked | 4 base, more as paid add-ons | 4 base, more as paid add-ons | 4 base, more as paid add-ons | Contact |
| Prompts | 15 | Contact | Contact | Contact |
| GEO audit | Yes | Yes | Yes | Yes |
| Citation link analysis | Yes | Yes | Yes | Yes |
| API access and MCP integration | No | Yes | Yes | Yes |
| White label | No | No | No | Contact |
Head-to-head feature comparison
| Feature | Free Google Ads Negative Keywords Generator | Otterly.AI |
|---|---|---|
| Primary job | Drafting manual Search exclusions | AI visibility monitoring and optimisation guidance |
| Cost to start | Free | $29/month |
| Google Ads account connection | No | No published Google Ads query connection |
| Negative-keyword suggestions | Yes | No |
| Search Terms Report analysis | No | No |
| AI engine monitoring | No | ChatGPT, AI Overviews, AI Mode, Perplexity, Copilot, Claude, Gemini |
| Citation and domain analysis | No | Yes |
| GEO audit | No | Yes |
| API and MCP access | No published API | Standard and above |
Which should you choose?
Free Google Ads Negative Keywords GeneratorOtterly.AIFree Google Ads Negative Keywords GeneratorOtterly.AIThe free generator is the right narrow tool when preventing irrelevant Google Search intent is the task. Its distinction between likely exclusions and terms to review protects against the costly habit of blocking words without considering the offer. Otterly is the right platform when the question changes from wasted paid-search clicks to whether a brand appears and is cited in AI answers. These tools do not overlap in data source, workflow, or buyer. Use both only if the marketing programme has both a Google Search hygiene need and a separate AI-visibility initiative.
Bottom line
Choose Free Google Ads Negative Keywords Generator for a no-cost, manual first pass before adding exclusions to a Search campaign. Review every candidate against the offer and actual Search Terms Report, especially the terms in its review bucket. Choose Otterly.AI from $29 per month when brand visibility in AI answers is a real marketing channel and the team needs citation, domain, answer-position, and GEO-audit evidence. Budget $189 per month or more when API and MCP access are part of the workflow.
Frequently asked questions
Can a Google Ads negative keyword generator replace Search Terms Report analysis for a live campaign?
A Google Ads negative keyword generator cannot replace Search Terms Report analysis for a live campaign because it produces a starting list from a keyword, industry, and predefined rules rather than the account’s real queries and spend. Use it to accelerate a pre-launch or hygiene review, then inspect Search Terms Report data before applying broad exclusions that could block valuable traffic.
Is Otterly.AI useful for managing negative keywords or wasted Google Ads clicks?
Otterly.AI is not useful for managing negative keywords or wasted Google Ads clicks because its documented product focuses on AI-answer visibility, citations, domains, answer rankings, and GEO recommendations. It does not publish a Google Ads query-management or Search Terms Report workflow. The relevant use of Otterly is deciding how content appears in AI-generated answers, not editing paid-search exclusions.
Which tool should a small business choose first for AI search visibility on a limited budget?
A small business should choose Otterly.AI Lite first for AI search visibility if monitoring AI answers is a genuine priority, because Lite starts at $29 per month with four base AI engines and GEO audit guidance. The free negative keyword generator costs nothing but serves a different need: drafting Search exclusions. Do not select it expecting any AI-engine monitoring or citation data.
Why does the negative keyword generator put free, cheap, course, and PDF terms in a review section?
The negative keyword generator places free, cheap, course, and PDF terms in a review section because those words can signal irrelevant intent for one advertiser but valuable demand for another. A local service may exclude a DIY guide search, while a training company may want course or download traffic. The review bucket forces the advertiser to compare each term with its offer before blocking it.
What Otterly.AI plan is needed for API and MCP access in an AI visibility workflow?
Otterly.AI requires the Standard plan or above for API access and MCP integration, with Standard listed at $189 per month and Premium at $489 per month. Lite at $29 per month provides monitoring and GEO audit features but not those workflow integrations. Teams should budget for Standard only when programmatic data access or an agent connection will be used in practice.
Reviewed by Filipe Lins DuarteCo-Founder & CEOVast experience talking to customers and users to understand what good software looks like. Background spans commercial and product roles.
Checked by John RiceCo-Founder & CTO15+ years building tech products and web applications. Conducted hundreds of user interviews to know what a good product looks like.
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