Komo AI
Search Engine And Chatbot
AI-powered search: Private, fast, ad-free.
Like Sigma AI Browser, Komo AI is in the Search Engine And Chatbot category. Komo AI is freemium, while Sigma AI Browser is free. Worth comparing on the detail page.
We've curated 50 of the best alternatives to Sigma AI Browser, ranked by feature overlap, topic similarity, user ratings, and popularity. Komo AI, HelpMoji, and Excuses AI lead the list as the closest matches.
Updated May 18, 2026
The list includes 49 free alternatives and 1 freemium, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Sigma AI Browser itself is free, which makes free alternatives the most natural starting point.
Many of these tools cluster around use cases like Free, Content Creation, Text Generation, and Data Privacy — the same problem spaces Sigma AI Browser addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Sigma AI Browser.
Ranked by compatibility score
Search Engine And Chatbot
AI-powered search: Private, fast, ad-free.
Like Sigma AI Browser, Komo AI is in the Search Engine And Chatbot category. Komo AI is freemium, while Sigma AI Browser is free. Worth comparing on the detail page.
Software Troubleshooting
When tech support can’t answer your questions, they come to us
HelpMoji shares 2 topics with Sigma AI Browser: No Sign Up and Free. Both are free.
Excuses
Generate perfect professional excuses with AI.
Excuses AI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Images
Generate art with Stable Diffusion
AIRunner shares 2 topics with Sigma AI Browser: No Sign Up and Free. Both are free.
Images
Create AI art from text and image prompts.
AIImageGenerator shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Images
Create stunning images with AI-powered search.
Bing Create shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Video Scripts
10X faster & free AI content creation for 100+ use cases
Scrip AI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Blog Titles
Generate SEO-optimized blog titles with AI
Ryrob shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Writing
Generate ideas and content with AI-powered writing assistance.
Text-Gen shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Synonyms
AI-powered contextual synonym finder
Better Synonyms shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Gift Ideas
AI-powered gift ideas in seconds, effortlessly.
Giftassistant shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Writing
Effortlessly generate text with Scribble AI.
Scribble AI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Content
Turbocharge creativity with AI-powered collaboration.
FYI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Chatgpt
Text generation for websites and blogs.
GPT-3 Anywhere shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Reviews
AI-powered reviews in seconds
RevMake shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Brainstorming
Free AI-powered brainstorming and content management app
Prototext shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Text Humanization
Transform AI content into human-like text effortlessly.
AI Text Converter shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Press Releases
Craft compelling press releases in minutes with AI.
Writerelease shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Memes
Create hilarious memes instantly with AI magic.
AI Meme shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Prompt Management
Supercharge your AI prompts with easy management
Vidura shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Text Rewriting
Enhanced content creation with contextual suggestions.
Franz AI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Sketch To Image
Turn rough sketches into works of art
Roughly shares 2 topics with Sigma AI Browser: No Sign Up and Free. Both are free.
Content
AI-powered apps for productivity and creativity
Fluxy shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Videos
Enhanced mobile video editing with advanced technology.
Roll shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
49 free and 1 freemium options.
44 more free/freemium alternatives listed below. Browse all Sigma AI Browser alternatives ↓
50 free or freemium alternatives to Sigma AI Browser on /tools/sigma-ai-browser/alternatives.
26 additional candidates
Lexy shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Maskmyprompt shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Segmed shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
MemefyAI shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
MagicWrite shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
ArtBot shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Viral Headline Generator shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
CustomWritings Essay shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Humanize AI Text shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
StoryGen shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
ChatGPT Sugar shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Yona shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Image Caption Generator shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Title Generator shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Wazgar shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
SkinGenie shares 2 topics with Sigma AI Browser: No Sign Up and Free. Both are free.
Cool Caption Ideas shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Product Description Generator by AIDirectories shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Luvvoice shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
QuotesMaker shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Enclave AI shares 2 topics with Sigma AI Browser: No Sign Up and Free. Both are free.
Google VideoFX shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
AI Background Remover by HTML Zone shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
AI Story Generator shares 2 topics with Sigma AI Browser: Content Creation and Free. Both are free.
Fluid shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Redactive AI shares 2 topics with Sigma AI Browser: Data Privacy and Free. Both are free.
Komo AI ranks as the highest-scoring alternative to Sigma AI Browser, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 49 fully free and 1 freemium alternatives are available, including Komo AI, HelpMoji, and Excuses AI.
Komo AI is priced differently (freemium) and sits in the same category (Search Engine And Chatbot). View its detail page to compare features, integrations, and reviews side-by-side.
Top Search Engine And Chatbot alternatives include Komo AI, HelpMoji, Excuses AI, and AIRunner. These tools share the same primary category and have meaningful topic overlap with Sigma AI Browser.
Neither Sigma AI Browser nor Komo AI has user ratings yet — be the first to review either tool to help future visitors compare them.