--- title: "reindexer vs vald" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/restream-reindexer-vs-vdaas-vald" tools: ["restream-reindexer", "vdaas-vald"] --- # reindexer vs vald *GraphCanon updated Sep 20, 2026* ## Verdict Pick reindexer if reindexer is an embeddable and in-memory document-oriented database designed for rapid vector search and similarity evaluation using a high-level query builder interface; pick vald if vald is a distributed vector search engine written in Go, optimized for high performance and scalability, making it suitable for applications such as image search and similarity search. [reindexer](https://reindexer.io) reports 811 GitHub stars, 61 forks, and 20 open issues, last pushed Sep 19, 2026. [vald](https://vald.vdaas.org) has 1.7k stars, 95 forks, and 147 open issues, last pushed Sep 16, 2026. Figures are from public GitHub metadata via [reindexer's repository](https://github.com/Restream/reindexer) and [vald's repository](https://github.com/vdaas/vald). | | [reindexer](/tools/restream-reindexer.md) | [vald](/tools/vdaas-vald.md) | | --- | --- | --- | | Tagline | Embeddable, in-memory, document-oriented database with a high-level Query builder interface. | A Highly Scalable Distributed Vector Search Engine | | Stars | 811 | 1,728 | | Forks | 61 | 95 | | Open issues | 20 | 147 | | Language | C++ | Go | | Adopt for | Reindexer is an embeddable and in-memory document-oriented database designed for rapid vector search and similarity evaluation using a high-level query builder interface. | Vald is a distributed vector search engine written in Go, optimized for high performance and scalability, making it suitable for applications such as image search and similarity search. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Apache-2.0 | | Categories | Data & Retrieval, Vector Databases | Data & Retrieval, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [reindexer](/tools/restream-reindexer.md) | [vald](/tools/vdaas-vald.md) | | --- | --- | --- | | Days since push | 1d | 2d | | Open issues (now) | 20 | 147 | | Stars delta | +5 (30d) | +14 (30d) | | Open issues delta | -2 (30d) | +1 (30d) | | Full report | [trust report](/tools/restream-reindexer/trust.md) | [trust report](/tools/vdaas-vald/trust.md) | ## Decision facts: reindexer - **Hosting:** self hosted - Reindexer functions as a self-hosted solution integrated into applications - **Pricing:** freemium - As an open-source tool under the Apache-2.0 license, Reindexer is freely available without licensing fees. - **Requirements:** Min 1 GB RAM; It is optimized for in-memory operations, so available memory directly impacts performance. - **Adopt for:** Reindexer is an embeddable and in-memory document-oriented database designed for rapid vector search and similarity evaluation using a high-level query builder interface. ## Decision facts: vald - **Requirements:** Requires Kubernetes 1.19 or newer.; Hardware must support AVX2 instructions for optimal performance. - **Adopt for:** Vald is a distributed vector search engine written in Go, optimized for high performance and scalability, making it suitable for applications such as image search and similarity search. ## Choose when ### Choose reindexer if… - reindexer is primarily C++; vald is Go. - Reindexer functions as a self-hosted solution integrated into applications - Pricing: As an open-source tool under the Apache-2.0 license, Reindexer is freely available without licensing fees.. - Requirements: Min 1 GB RAM; It is optimized for in-memory operations, so available memory directly impacts performance.. - Tags unique to reindexer: ann-search, cpp-library, document-oriented-database, embedable. - When you need advanced vector search capabilities with fast performance as Reindexer specializes in efficient vector searches. ### Choose vald if… - vald is primarily Go; reindexer is C++. - Requirements: Requires Kubernetes 1.19 or newer.; Hardware must support AVX2 instructions for optimal performance.. - Tags unique to vald: anng, approximate-nearest-neighbor-search, cloud-native, distributed-systems. - When you need a scalable solution for high-dimensional data search, Vald can handle large volumes of data efficiently. ## When NOT to use reindexer - When the requirement is for a distributed database system; Reindexer operates as an embeddable solution and does not support distributed configurations out-of-the-box. - If your project strictly avoids C++ libraries due to team expertise or environmental restrictions, since Reindexer is primarily developed in C++. ## When NOT to use vald - Avoid Vald if your infrastructure does not support Kubernetes 1.19 or newer, as it is a requirement for Vald's operation. - Do not use Vald if your hardware does not support AVX2 instructions, as this will limit the performance of the Vald Agent NGT component. - If your project requires a non-distributed solution, Vald's distributed architecture might introduce unnecessary complexity. ## Common questions ### What is the difference between reindexer and vald? reindexer: Embeddable, in-memory, document-oriented database with a high-level Query builder interface.. vald: A Highly Scalable Distributed Vector Search Engine. See the comparison table for live GitHub stats and shared categories. ### When should I choose reindexer over vald? Choose reindexer over vald when reindexer is primarily C++; vald is Go; Reindexer functions as a self-hosted solution integrated into applications; Pricing: As an open-source tool under the Apache-2.0 license, Reindexer is freely available without licensing fees.; Requirements: Min 1 GB RAM; It is optimized for in-memory operations, so available memory directly impacts performance.; Tags unique to reindexer: ann-search, cpp-library, document-oriented-database, embedable; When you need advanced vector search capabilities with fast performance as Reindexer specializes in efficient vector searches. ### When should I choose vald over reindexer? Choose vald over reindexer when vald is primarily Go; reindexer is C++; Requirements: Requires Kubernetes 1.19 or newer.; Hardware must support AVX2 instructions for optimal performance.; Tags unique to vald: anng, approximate-nearest-neighbor-search, cloud-native, distributed-systems; When you need a scalable solution for high-dimensional data search, Vald can handle large volumes of data efficiently. ### When should I avoid reindexer? When the requirement is for a distributed database system; Reindexer operates as an embeddable solution and does not support distributed configurations out-of-the-box. If your project strictly avoids C++ libraries due to team expertise or environmental restrictions, since Reindexer is primarily developed in C++. ### When should I avoid vald? Avoid Vald if your infrastructure does not support Kubernetes 1.19 or newer, as it is a requirement for Vald's operation. Do not use Vald if your hardware does not support AVX2 instructions, as this will limit the performance of the Vald Agent NGT component. If your project requires a non-distributed solution, Vald's distributed architecture might introduce unnecessary complexity. ### Is reindexer or vald more popular on GitHub? vald has more GitHub stars (1,728 vs 811). Stars measure visibility, not whether either tool fits your constraints. ### Are reindexer and vald open source? Yes - both are open-source projects on GitHub (reindexer: Apache-2.0, vald: Apache-2.0). ### Where can I find alternatives to reindexer or vald? GraphCanon lists graph-backed alternatives at [reindexer alternatives](/tools/restream-reindexer/alternatives) and [vald alternatives](/tools/vdaas-vald/alternatives) ([reindexer markdown twin](/tools/restream-reindexer/alternatives.md), [vald markdown twin](/tools/vdaas-vald/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/restream-reindexer-vs-vdaas-vald.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, reindexer or vald? reindexer: Very active. vald: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for reindexer and vald? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [reindexer trust report](/tools/restream-reindexer/trust); [vald trust report](/tools/vdaas-vald/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=restream-reindexer`](/api/graphcanon/graph?tool=restream-reindexer) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_