Dev tools · alternatives · 2026
24 alternatives to Open-source search engine with 2bn-page index
Deusu is an open-source search engine launched in 2016 with an indexed database of 2 billion pages. Designed for developers and technical users, it provides an alternative to commercial search engines with publicly… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open-source search engine with 2bn-page index launched in 2016; newer entries below may have overtaken it.
- 1
dejavu▲90A modern, open-source data browser for Elasticsearch.
2016 · opensource.appbase.io · its alternatives →
- 2
End-to-end deep dive of the project, spanning a large GPU cluster, distributed RocksDB, and terabytes of sharded HNSW.
2025 · blog.wilsonl.in · its alternatives →
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Dejavu 2.0▲87Open-source data browser for Elasticsearch
2017 · opensource.appbase.io · its alternatives →
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- 5DA
2016 · appbaseio.github.io · its alternatives →
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OpenSEO▲928Hello! For the last 2 months, I've been building OpenSEO. It's a user friendly UI wrapping the DataForSEO API which has high quality SEO data for keywords, backlinks, AI SEO and competitor research. Instead of paying $100+ per month, you buy DataForSEO credits and pay only for usage. The coolest thing about the project so far has been hearing about what people are building on top of it. People are using coding agents to quickly integrate with Google Search Console, Google Ads and building their own AI SEO and reporting features. Many were already building their own custom solutions around…
Jul 2026 · openseo.so · its alternatives →
- 7FS
Hi HN! This started late last year as an afternoon project to play around with ElasticSearch, and then I kept thinking of new features I wanted to add. I still have a lot of things I want to build, but now seemed like a good time to put it out there: even if the results aren’t nearly the quality I’d like, I’ve still found it useful and I want to show it off! I’ve been working on it since September 2021, but only in fits and starts. The entire thing runs on a computer in my living room (there’s a picture on the About page); I haven’t done any load testing so we’ll see how it holds up.
2022 · search.feep.dev · its alternatives →
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An open source, non-profit web search engine. Contribute to mwmbl/mwmbl development by creating an account on GitHub.
2021 · github.com · its alternatives →
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A Web UI for Elasticsearch and OpenSearch: Import, browse and edit data with rich filters and query views, create reference search UIs. - Release Dejavu 1.0.0 is here · appbaseio/dejavu
2017 · github.com · its alternatives →
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Hi HN, I am Jiayuan, and I'm here to introduce a tool we've been building over the past few months: Devv (https://devv.ai). In simple terms, it is an AI-powered search engine specifically designed for developers. Now, you might ask, with so many AI search engines already available—Perplexity, You.com, Phind, and several open-source projects—why do we need another one? We all know that Generative Search Engines are built on RAG (Retrieval-Augmented Generation)[1] combined with Large Language Models (LLMs). Most of the products mentioned above use indexes from general search engines…
2024 · devv.ai · its alternatives →
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2020 · hndex.org · its alternatives →
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Alternative search engines are neat, as are RSS feeds. OpenOrb is a self-hosted app which allows visitors to search over a list of blogs you love. If you put your 10 favourite blogs in there, it'll search just those blogs and not show you any sponsored content or machine-generated garbage (unless... you follow blogs written by machines?) Personal RSS feed readers can usually do this sort of thing, but RSS readers aren’t meant to be shared, so you can think of the search engine as a 'curated feed list as a public service'. I wrote a longer blog post about OpenOrb here:…
2024 · openorb.idiot.sh · its alternatives →
- 17DF
2021 · deephn.org · its alternatives →
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Desearch▲113First Decentralized AI Search for Builders & Agents
2025 · desearch.ai · its alternatives →
- 20
Dweb Search▲79A decentralized search engine for IPFS and Filecoin
2021 · dweb-search.on.fleek.co · its alternatives →
- 21
I've been working on a little open source [1] search engine, nilch. I noticed that nearly all well known search engines, including the alternative ones, tend to be run by companies of various sizes with the goal to make money, so they either fill your results with ads or charge you money, and I dislike this because search is the backbone of the internet and should not be commercial, so it runs in a not-for-profit style and aims to survive on donations. Additionally I'm personally really sick of AI in my search results so I got rid of that, and I wanted DuckDuckGo bangs so it supports all of…
Dec 2025 · nilch.org · its alternatives →
- 22FT
2021 · gutensearch.com · its alternatives →
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- 24AE
2021 · ninfex.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →