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AWS Kendra costs $25/mo.
These cost $0.

8 free alternatives to AWS Kendra, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.

⚑ Quick Verdict · 2027 Guide

The top-rated free, open-source replacement for AWS Kendra is Elasticsearch (Open Source Open Source). Across this category, 8 self-hostable tools are available (including Elasticsearch and Meilisearch). Switching a 5-person team saves up to $1,500/year compared to AWS Kendra's $25/mo subscription.

The catch: Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

AWS Kendra vs Free Alternatives

Quick side-by-side comparison Β· $0/mo vs $25/mo

AlternativeTypeLicenseWhere It RunsStarsHead-to-Head
Elasticsearchopen sourceOpen SourceSelf-hostβ˜… 78.5kAWS Kendra vs Elasticsearch β†’
Meilisearchopen sourceMITSelf-hostβ˜… 59.8kAWS Kendra vs Meilisearch β†’
Onyxopen sourceOpen SourceSelf-hostβ˜… 33.3kAWS Kendra vs Onyx β†’
Typesenseopen sourceGPL-3.0Self-hostβ˜… 27.1kAWS Kendra vs Typesense β†’
OpenSearchopen sourceApache-2.0Self-hostβ˜… 14kAWS Kendra vs OpenSearch β†’
Manticore Searchopen sourceOpen SourceSelf-hostβ˜… 12.1kAWS Kendra vs Manticore Search β†’
Swirl Searchopen sourceOpen SourceSelf-hostβ˜… 3kAWS Kendra vs Swirl Search β†’
SeekStormopen sourceOpen SourceSelf-hostβ˜… 1.9kAWS Kendra vs SeekStorm β†’

The picks

8 open source Β· ranked by fit

  1. 01

    Elasticsearch

    open sourceOpen SourceSelf-host
    78.5knov 2026

    Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/elastic/elasticsearch or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  2. 02

    Meilisearch

    open sourceMITSelf-host
    59.8knov 2026

    A powerful, fast, and easy-to-use search engine that delivers instant and relevant results for your websites and applications.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed Algolia.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/meilisearch/meilisearch or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  3. 03

    Onyx

    open sourceOpen SourceSelf-host
    33.3knov 2026

    An open-source platform that connects to 40+ apps to provide intelligent search and AI assistance across all company information

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/onyx-dot-app/onyx or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  4. 04

    Typesense

    open sourceGPL-3.0Self-host
    27.1knov 2026

    Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed Algolia.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/typesense/typesense or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  5. 05

    OpenSearch

    open sourceApache-2.0Self-host
    14knov 2026

    Community-driven, Apache 2.0-licensed search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale with AI/ML capabilities.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed Algolia.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/opensearch-project/OpenSearch or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  6. 06

    Manticore Search

    open sourceOpen SourceSelf-host
    12.1knov 2026

    Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/manticoresoftware/manticoresearch or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  7. 07

    Swirl Search

    open sourceOpen SourceSelf-host
    3knov 2026

    AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/swirlai/swirl-search or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  8. 08

    SeekStorm

    open sourceOpen SourceSelf-host
    1.9knov 2026

    Cloud search API and crawler service supporting billions of documents, real-time indexing, autocomplete, faceted filtering, and multi-language text across any application.

    The catch vs AWS Kendra

    Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/SeekStorm/SeekStorm or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07

AWS Kendra Head-to-Head Comparisons (2027)

Side-by-side trade-off breakdowns Β· 8 free alternatives

Frequently Asked Questions

Direct answers Β· AWS Kendra open-source replacements

What is the best free alternative to AWS Kendra?+

The top free alternative to AWS Kendra is Elasticsearch (open source, Open Source). Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management. Other popular AWS Kendra replacements include Meilisearch, Onyx, Typesense.

Can I self-host a free replacement for AWS Kendra?+

Yes. Of the 8 free alternatives to AWS Kendra, 8 can be self-hosted on your own server or local machine: Elasticsearch (Open Source), Meilisearch (MIT), Onyx (Open Source), Typesense (GPL-3.0), OpenSearch (Apache-2.0), Manticore Search (Open Source), Swirl Search (Open Source), SeekStorm (Open Source).

How much does switching from AWS Kendra to a free alternative save?+

AWS Kendra starts at $25/month per seat ($300/year). Switching a 5-person team to a free alternative like Elasticsearch saves $1,500 per year in software subscription fees.

Should I vibe-code or build my own AWS Kendra clone from scratch?+

Our build verdict for AWS Kendra is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for AWS Kendra or rebuilding it from scratch, deploy one of the 8 battle-tested open-source alternatives like Elasticsearch.

What is the catch when switching from AWS Kendra to Elasticsearch?+

Requires self-hosting setup, updates, and server maintenance compared to managed AWS Kendra.