AI · alternatives · 2026
24 alternatives to Moss – AI-Powered Semantic Search Running In-Browser (No Cloud)
Hey HN, We’ve been heads-down building MOSS - a semantic memory layer that brings AI-powered search and personalization fully on-device (No cloud | No latency | No data leaving the user’s device) We just launched a live demo showing MOSS running entirely in-browser, performing lightning-fast semantic search over local in-browser VectorDB. This unlocks a new class of privacy-first, hybrid AI experiences that work even without a server connection. If you’re curious about: - how to run AI search right inside the browser - the technical challenges behind on-device vector search - why we believe…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
Fabric▲690Make notes, tasks, and search, directly from the terminal.
2023 · fabric.so · 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 →
- 3
Meilisearch AI▲241Boost relevance and UX with fast hybrid and semantic search
2025 · meilisearch.com · its alternatives →
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Hi HN, We're Luke and Phillip, and we're building Spice.ai OSS - a lightweight, portable runtime, built in Rust and powered by Apache DataFusion to locally materialize, accelerate, and query data tables sourced from any database, data warehouse or data lake. Phillip and I first introduced Spice on Show HN in September 2021. Since then, we’ve been schooled and humbled in every way building 100TB+ data and ML systems for the https://spice.ai cloud platform. Along with our customers, we struggled with getting fast, low-latency, high-concurrency SQL query within a budget, accessing and…
2024 · github.com · its alternatives →
- 5SP
Step into the future with Searchbase Cloud's AI-enhanced search capabilities. Effortless to integrate, intuitive to use, and built for insightful discoveries. Transform your data into action with the smartest search on the market. Join the revolution.
2024 · searchbase.dev · its alternatives →
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Spice.ai▲63Hi HN, we’re Luke and Phillip, and we’re building Spice.ai OSS - a lightweight, portable data and AI engine and powered by Apache DataFusion & Ballista for SQL query, hybrid-search, and LLM-inference across disaggregated-storage used by enterprises like Barracuda Networks and Twilio. With v2.0, you can add a real-time analytics node to your operational database with high-throughput native CDC replication. We first introduced Spice [1] on HN in 2021 and re-launched it on HN [2] in 2024 re-built from the ground up in Rust. In 2025 we launched Spice Cayenne [5], our acceleration and query…
2023 · spice.ai · its alternatives →
- 7
GoSearch Free▲163GoSearch is the newest AI-powered enterprise search solution — by the makers of GoLinks, a YCombinator company. Available now at gosearch.ai! If you’re still reading, check out our other new product that just launched: GoProfiles.io, the only AI-powered HR platform.
2025 · gosearch.ai · its alternatives →
- 8
Magine▲142Spawn vision-enabled AI agents autonomously browsing the web
Mar 2026 · magine.cloud · its alternatives →
- 9
One search. Your emails, docs, notes - all connected.
2025 · search.amurex.ai · its alternatives →
- 10
Mirowl▲96Search all your screenshots via a local OCR-powered AI
Jun 2026 · mirowl.com · its alternatives →
- 11
Alphy▲96Create customizable search engines on audiovisual content
2023 · alphy.app · its alternatives →
- 12
Dear HN Community, I am a long time fan and first-time contributor. I just launched a developer focused semantic search platform and wanted to share it with the community. The idea is simple: upload structured or unstructured documents, select the fields you want to index and tag as metadata, and instantly get a clean search API you can use in your own app. Here is what it currently supports: - Manage your own tenants and projects - Upload .json and .txt files (support for .pdf, .docx, .xlsx, .yml, etc. coming soon) - Expose 3 APIs: search, upload document (embeddings), and delete document -…
2025 · aisearch.vpuna.com · its alternatives →
- 13
Hey HN! I got nerd-sniped by Bloom Filters this weekend, specifically for searching datasets with high "cardinality" (number of unique items). They're an _amazing_ data structure that, at a fixed size, tracks potential set membership. That means unlike normal b-tree indexes, they don't grow with the number of unique items in the dataset. This makes them great for "needle in a haystack" search (logs, document) as implementations like VictoriaMetrics and Bing's BitFunnel show. I've used them in the past, but they've never been center-stage in my projects. I wanted high cardinality keyword…
2025 · github.com · its alternatives →
- 14
We built a voice AI agent for moss.dev so visitors could get answers without waiting for a sales call. It quickly became one of our most effective ways to engage leads, and other companies started asking for it. Meet Founding Agent.
Jun 2026 · moss.dev · its alternatives →
- 15
Keenable – A different web search API for AI agentsfree tier, from $0.004/mo▲12Hey HN! We built https://keenable.ai, a different web search API for AI agents. Keenable searches our own 100B+ page index. We are focused on low cost and latency (p95 <250ms from us-east). We don’t believe in benchmaxxing, so we open-sourced our internal benchmarking suite, NEEDLE (available at https://keenableai.github.io/needle): a live benchmark that compares Keenable with other search APIs on fresh agent-like queries. I spent seven years at Amazon as a scientist working on web grounding for Alexa/AGI, and my co-founder Andrey previously led search at…
Aug 2026 · keenable.ai · its alternatives →
- 16
Hi, I've been watching the rise of AI agents with a mix of excitement and dread. We're building incredible tools that can browse the web, but we're forcing them to navigate a world built for human eyes. They scrape screens and parse fragile DOMs. We're trying to tame them to act like humans. I believe this is fundamentally wrong. The goal isn't to make AI operate at a human level, but to unlock its super-human potential. The current path is dangerous. When agents from OpenAI, Google, and others start browsing at scale and speed, concepts like UI/UX will lose meaning for them. The entire…
2025 · github.com · its alternatives →
- 17LA
Hi HN, I made Lingo - the SQLite of semantic search. I'm a self-taught developer and researcher who left school at 16, and I've spent some time exploring a first-principles approach to system design for various frontier problems. In this case it's AI that challenges the 'bigger is better' transformer paradigm. Lingo is the first piece of that research, a high-performance linguistic database designed to run on-device. The full technical overview and manifesto is here: https://medium.com/@robm.antunes/bcd1e9752af6 The paper has been archived on Zenodo with a DOI:…
2025 · its alternatives →
- 18SA
2025 · spiceai.org · its alternatives →
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- 20
Local semantic search engine with transformer embeddings.
2025 · npmjs.com · its alternatives →
- 21
Hey everyone! I’m excited to announce the release of my last project, MiniSearch. I admire Perplexity.ai, Phind.com, You.com, Bing, Bard and all these search engines integrated with AI chatbots. And as a curious developer, I took the chance and created my own version. Using Web-LLM and Transformers.js to provide browser-based text-generation models on desktop and mobile, I built a minimalist self-hosted search app on which an AI analyses the results, comments on them and responds to your query summarising the info. In the backend, it still queries a real search engine, but besides that,…
2023 · huggingface.co · its alternatives →
- 22
Hi folks! I created a frontend-only live semantic search engine based on transformers.js and sentence-transformers/all-MiniLM-L6-v2. Simply pour in your text and a query term. Hit enter and watch the search engine in action! It's highly customizable and stores the embeddings in a variable so that consecutive runs are very fast. You can tweak the segment length to reduce computation time or get get more precise results. I would be very happy to discuss some more usage ideas or receive PRs for improvements. Introduction blog post:…
2023 · geo.rocks · its alternatives →
- 23
I was recently playing with Apple's CoreML and had several painful observations on tooling. It's not enough for a long read but should be for an HN post. In short, you can take a simple BERT-like encoder model in PyTorch, convert it into an f32 CoreML checkpoint, and run it on CPU or GPU, but not NPU. Let's unpack this. Having a simple and extensible format to exchange common ANN architectures is a big issue for anyone who uses more than one framework or programming language to run the same model. ONNX is the closest we have to that standard, but it's hard to call anything Protobuf-related…
2024 · github.com · its alternatives →
- 24
Swirl is the Open-Source Platform for Enterprise Search with AI (LLMs and GPT). Swirl can connect to many data sources and provide search functionality. If your product has an API then it can be searched with Swirl. Like, SQL Databases, NoSQL, Slack, Google Bard, Open AI, Huggingface, Spacy, Teams, Outlook, Calendar, ApaceSolr, etc. All the search providers, and all the data siloes. It can then use Chat GPT or any other LLM to perform RAG(Retrieval Augmentated Generation) on your content.
2023 · github.com · its alternatives →
Also compare
- Fabric alternatives
- Building a web search engine from scratch with 3B neural embeddings alternatives
- Meilisearch AI alternatives
- Spice.ai – materialize, accelerate, and query SQL data from any source alternatives
- Searchbase – Plug-n-play semantic/fuzzy search for your data alternatives
- Spice.ai alternatives
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 →