DuckDB
An in-process analytical database engine that runs on any device or server
- Vendor
- DuckDB Foundation
- Also known as
- duckdb
Available worldwide
What is DuckDB?
DuckDB is an open-source analytical database system optimized for running SQL queries locally or deployed to various environments. It supports multiple data formats and can operate as an embedded database or client-server system.
DuckDB pricing
We don't have DuckDB's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Free, open source under MIT license
What DuckDB does
The capabilities that matter for data warehouse software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Deployment
- Embedded
- Architecture
- -
- Compute model
- -
- SQL dialect
- Vendor-specific
- Federation / lakehouse query-in-place
- ✓
- Table-format support
- Parquet, CSV, JSON, Iceberg, Delta Lake, Vortex, DuckLake, Lance, Arrow, Avro, E
- Concurrency scaling
- -
- Streaming ingest
- -
- Semi-structured (JSON/VARIANT)
- Functional
- ML / in-DB functions
- ✓
- Data sharing / marketplace
- -
- Licence class
- Permissive OSS
Platform & deployment
Independently observed- CLI
- macOS
- Linux
- Self-hosted
Integrations (29)
Independently observed- PostgreSQL
- Apache Iceberg
- Postgres
- AWS
- S3
- Azure
- Google Cloud
- Hugging Face
- SQLite
- MySQL
- Iceberg
- Delta Lake
- Parquet
- JSON
- Arrow
- Avro
- Pandas
- dplyr
- Jupyter
- Marimo
- Claude
- Cloudflare
- ODBC
- HTTP
- Excel
- Vortex
- DuckLake
- Lance
- Geospatial formats
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
DuckDB FAQ
Common questions about DuckDB, answered from independent, dated evidence.
What is DuckDB?
An in-process SQL analytical database that runs natively in applications across operating systems and environments. Supports querying files and cloud data directly with a SQL dialect and includes vector search capabilities. It is indexed under Data Warehouse Software.
Source: https://duckdb.org
Is DuckDB free to use?
DuckDB is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.
Source: https://duckdb.org
What platforms does DuckDB support?
DuckDB supports the web, Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://duckdb.org
Can DuckDB be self-hosted?
Yes. DuckDB can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://duckdb.org
What does DuckDB integrate with?
We have confirmed 27 integrations for DuckDB, including Postgres, AWS, S3, Azure, Google Cloud, Hugging Face, SQLite and MySQL, plus 19 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://duckdb.org
Is DuckDB open source?
Yes. DuckDB is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Source: https://github.com/duckdb/duckdb
Where is DuckDB available?
DuckDB is available worldwide. The vendor is headquartered in the Netherlands.
Source: https://duckdb.org
DuckDB alternatives
Other data warehouse software we track, ranked by the same independent score.
- SingleStoreA real-time database platform for seamless integration with data lakes and lakehousesmedium · 72%
- Dremiomedium · 69%
- SnowflakeA fully managed cloud platform for data, analytics, and AI workloadsmedium · 65%
- Google BigQueryConvert a traditional data warehouse into an intelligent, AI-powered analytics platformmedium · 50%
- FireboltAn open-source distributed query engine for real-time and batch analytics, deployable from a laptop to enterprise clusters with per-second billing.medium · 74%
- Delta LakeAn open-source storage format that unifies data warehousing, analytics, and machine learning across query engines and infrastructure typesmedium · 60%
Compare DuckDB
Side by side against other data warehouse software, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for DuckDB, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package downloads | 94 | 0.14 | 12.8 | ✓ |
| Development activity | 63 | 0.09 | 5.9 | ✓ |
| Release cadence | 84 | 0.05 | 4.4 | ✓ |
| Integrations | 42 | 0.07 | 3.0 | ✓ |
| Capabilities | 46 | 0.06 | 2.9 | ✓ |
| Stars | 87 | 0.03 | 2.3 | ✓ |
| Dependent projects | 5 | 0.06 | 0.3 | ✓ |
| Security posture | 0 | 0.12 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-09-10 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 7 items | mediumsource · 2026-09-10 · 68% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | In db ml: Yes · Deployment: embedded · Sql dialect: vendor · License class: permissive · Table formats: Parquet, CSV, JSON, Iceberg, Delta Lake, Vortex, DuckLake, Lance, Arrow, Avro, E · Semi structured: functional | mediumsource · 2026-09-10 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 27 | mediumsource · 2026-08-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C++ | highsource · 2026-09-10 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-09-10 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: NL · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-12 · 75% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-01 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=python-duckdb&per_page=100 · Last 12m: 0 | highsource · 2026-09-10 · 90% |
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