Sure, Algolia is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: Meilisearch .

So is Meilisearch

Lightning-fast search API
★ 59.1K Search engine License: MIT
A lightning-fast search engine that fits effortlessly into your apps, websites, and workflow.

Read more about Meilisearch