ParadeDB vs Vald
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | ParadeDB | Vald |
|---|---|---|
| Deploy effort | ≈5-minute setup | Under-an-hour setup |
| Health score | 92 · Excellent | 85 · Excellent |
| Category | Search Engines | Search Engines |
| License | AGPL-3.0 | Apache-2.0 |
| Language | Rust | Go |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 2,048 MB |
| Deployment | docker, source | kubernetes, helm, docker |
| GitHub stars | ★ 9,301 | ★ 1,730 |
| First released | 2023 | 2020 |
| Replaces | Elasticsearch | Pinecone, Elasticsearch |
What are ParadeDB and Vald?
ParadeDB
ParadeDB is an open-source PostgreSQL-based platform that adds Elasticsearch-grade full-text search and analytics directly inside the database. It uses BM25 indexing so search can run alongside existing relational data.
- Search inside Postgres
- BM25 full-text indexing
- Analytical queries
- No separate search cluster
Vald
Vald is a highly scalable distributed vector search engine designed to run on Kubernetes for approximate nearest neighbor search over billions of vectors. It is used for similarity search in recommendation and AI applications.
- Distributed vector search
- Kubernetes-native
- Billion-scale indexes
- Approximate nearest neighbor
ParadeDB vs Vald: key differences
ParadeDB is written in Rust, while Vald is built with Go. Licensing differs — AGPL-3.0 for ParadeDB versus Apache-2.0 for Vald. ParadeDB is the lighter option, starting around 1,024 MB of RAM against 2,048 MB for Vald. Vald is the more established project (first released 2020), while ParadeDB arrived in 2023. ParadeDB has the considerably larger community, at 9,301 GitHub stars versus 1,730.
Why pick each one
Choose ParadeDB if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Mature project with 9.3k GitHub stars
- Written in Rust
Choose Vald if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Kubernetes-ready with Helm charts available
- Active community (1.7k GitHub stars)
Frequently asked questions
Is ParadeDB or Vald better?
ParadeDB is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Vald if its specific feature set fits your needs better.
Are ParadeDB and Vald free and open-source?
Yes. ParadeDB is licensed under AGPL-3.0 and Vald under Apache-2.0. Both can be self-hosted at no software cost.
Can I run ParadeDB and Vald with Docker?
ParadeDB: yes. Vald: yes.
Which is lighter on resources, ParadeDB or Vald?
ParadeDB has the smaller minimum footprint at 1,024 MB of RAM, compared to about 2,048 MB for Vald. Real-world usage depends on library size, user count, and enabled features.