# Keywords Mixer > A free keyword combiner tool that generates every possible combination of prefixes, core keywords, and suffixes for SEO and PPC keyword research. Creates thousands of unique keyword combinations to help diversify keyword portfolios and improve search engine targeting. Keywords Mixer is a client-side tool that processes keyword lists locally without sending data to servers. It takes three input lists (prefixes, core keywords, suffixes) and generates all possible permutations, helping marketers and SEO professionals create comprehensive longtail keyword lists for campaigns and content optimization. The tool supports multiple output formats including broad match, phrase match, exact match, and domain name formats. Users can customize concatenation characters, choose different case conversions, and select specific combination patterns (all three lists, or combinations of two lists). Key features: - Generates 87,000+ unique combinations from moderate input lists - Multiple match type outputs (broad, phrase, exact, broad match modifier) - Custom concatenation and formatting options - Case conversion options (lowercase, uppercase, title case, sentence case) - Flexible combination patterns for different use cases - Completely free with no registration required - Privacy-focused with client-side processing only ## Use Cases - [SEO keyword research](https://keywordsmixer.com/): Generate comprehensive longtail keyword lists for content optimization and search engine targeting - [PPC campaign development](https://keywordsmixer.com/): Create diverse keyword sets for Google Ads, Bing Ads, and other paid search platforms - [Content planning](https://keywordsmixer.com/): Develop keyword-rich content ideas and topics for blogs, articles, and web pages - [Local business marketing](https://keywordsmixer.com/): Combine business terms with location modifiers for local SEO campaigns ## Technical Features - [Match type formatting](https://keywordsmixer.com/): Supports broad match, phrase match, exact match, and broad match modifier outputs - [Custom formatting options](https://keywordsmixer.com/): Configure concatenation characters, word wrapping, and line wrapping - [Case conversion](https://keywordsmixer.com/): Convert output to lowercase, uppercase, title case, or sentence case - [Combination patterns](https://keywordsmixer.com/): Choose to combine all three lists or specific combinations of two lists