Sonic
Fast, lightweight, open source search backend
Sonic launched on March 26, 2019 with 12 votes, #1,005 of 2,994 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 7 years on.
What it does
Sonic is a fast, lightweight and schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM. It is capable of normalizing natural language search queries, autocompletion and provides the most relevant results for a query
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM. - valeriansaliou/sonic
Does a similar job
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Reactive Search 2.02018 · opensource.appbase.io · ▲276Elasticsearch UI components for React 📝
OpenObserve – Elasticsearch/Datadog alternative2023 · github.com · ▲198Hello folks, We are launching OpenObserve. An open source Elasticsearch/Splunk/Datadog alternative written in rust and vue that is super easy to get started with and has 140x lower storage cost compared to elasticsearch. It offers logs, metrics, traces, dashboards, alerts, functions (run aws lambda like functions during ingestion and query to enrich, redact, transform, normalize and whatever else you want to do. Think redacting email IDs from logs, adding geolocation based on IP address, etc). You can do all of this from the UI, no messing up with configuration files. OpenObserve…

- FSFeep! search, an independent search engine for programmers2022 · search.feep.dev · ▲182
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.

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