Meilisearch vs OpenSearch
Both are alternatives to Algolia. Here's how they stack up — verified facts, no spin.
Also searched as OpenSearch vs Meilisearch — same comparison, one verdict.
Meilisearch and OpenSearch are closely matched on ownership (88 vs 91) — this one comes down to pricing and to which trade-offs below you can live with.
Meilisearch
TOP PICKGreat search out of the box, on one small server.
Meilisearch is a Rust search engine built to be excellent without configuration: typo tolerance, prefix search, faceting and sub-50ms responses are the defaults rather than settings you tune into existence. It ships an Algolia-compatible InstantSearch adapter, so the front-end work in a migration is small. Around 58.8k stars. One precision the directories usually miss: the licence is `MIT AND BUSL-1.1` — the main engine is MIT, but the Meilisearch Enterprise Edition components fall under the Business Source License. For ordinary self-hosted use that changes nothing; it matters if you are building a hosted search product on top of it.
OpenSearch
The Apache-2.0 Elasticsearch fork — when search is only half the job.
OpenSearch is the fork AWS created after Elastic changed Elasticsearch's licence in 2021, kept under Apache-2.0 and now governed by a foundation. It is far more than a search box: aggregations, analytics, log ingestion, dashboards and vector search in one platform, which is exactly right if search and observability are the same infrastructure problem for you and exactly wrong if you only wanted a fast product search. Around 13.4k stars. It is the heaviest option here and it earns that weight only when you need what it does.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Meilisearch | OpenSearch | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 88 | 91 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | MIT, with enterprise-edition components under BUSL-1.1 | Apache-2.0 |
| Pricing | Free and open source to self-host. Meilisearch Cloud is paid, from a small monthly tier. | Free and open source. Managed OpenSearch is available from AWS and others. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 4 GB — it wants the index resident in memory | 8 GB heap on a 16 GB machine |
| Realistic running costWhat the box costs each month if you run it yourself. | $15–30/mo, against Algolia pricing that scales per search operation | $60–120/mo for a small cluster, against Algolia pricing that bills per search operation |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 1 hour | Half a day for one node, a week for a production cluster |
| Ongoing maintenanceThe part nobody budgets for. | Low. Reindexing on schema change is the main operation. | Real. Shard sizing, JVM heap and index lifecycle are all yours. |
Meilisearch is Macrostack's recommended Algolia alternative, so it's our pick here.
Weighing both against staying on Algolia? Is Algolia free? What it actually costs →
Meilisearch
Strengths
- +Genuinely excellent relevance with no tuning — the best defaults here
- +Algolia-compatible InstantSearch adapter keeps the front end intact
- +Single Rust binary, low memory, runs happily on a small VPS
- +Fast to adopt: indexing to searching in well under an hour
Trade-offs
- −Enterprise-edition components are BUSL-1.1, not MIT
- −Less control over ranking than Algolia or Elasticsearch when you need it
- −Horizontal scaling is newer and less proven than the hosted options
- −You own uptime, backups and index freshness
OpenSearch
Strengths
- +Apache-2.0 under foundation governance — the licence question is settled
- +Handles search, analytics, logs and vectors in one platform
- +Enormous ecosystem inherited from Elasticsearch
- +Managed offerings exist if you would rather not operate a cluster
Trade-offs
- −Substantially heavier than the purpose-built search engines
- −JVM tuning and cluster operation are a real skill set
- −Relevance needs meaningful configuration to match Algolia
- −Overkill if all you need is a fast search box
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Meilisearch
if genuinely excellent relevance with no tuning — the best defaults here.
Choose OpenSearch
if a lower exit cost matters more to you than any single feature, and apache-2.0 under foundation governance — the licence question is settled.
Neither, yet
if both carry a real cost you should weigh first — enterprise-edition components are BUSL-1.1, not MIT, and substantially heavier than the purpose-built search engines. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting Meilisearch
4 GB — it wants the index resident in memory RAM · 1 hour
$15–30/mo, against Algolia pricing that scales per search operation
Self-hosting OpenSearch
8 GB heap on a 16 GB machine RAM · Half a day for one node, a week for a production cluster
$60–120/mo for a small cluster, against Algolia pricing that bills per search operation
Meilisearch vs OpenSearch — common questions
Is Meilisearch a better fit than OpenSearch for search infrastructure?
It depends on what you are optimising for, and the honest split is this: OpenSearch scores 91 to Meilisearch's 88 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Meilisearch earns its place on a different axis — genuinely excellent relevance with no tuning — the best defaults here. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Meilisearch keeps its data local or in open formats, so leaving is an export rather than a negotiation. OpenSearch is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Meilisearch or OpenSearch?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Meilisearch and OpenSearch both alternatives to Algolia?
Yes — both appear in our Algolia comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Algolia and now choosing between the two replacements, which is a narrower and much easier question.
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Facts verified 2026-07-31. Licenses and pricing change — spotted something out of date? That's a correction we want.