Comparison

Delta Lake vs DuckDB

No clear leader: Delta Lake (64.7) and DuckDB (62.4) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Delta Lake65
DuckDB62
Score
Vioscale score
Delta Lake65 / 100medium · 58%
DuckDB62 / 100medium · 56%
Pricing
Free tier
Delta Lake
DuckDB
Model
Delta Lakeopen_source
Price level
Delta Lakefree
DuckDBfree
Transparent
Delta Lake
DuckDB
Integrations
Count
Delta Lake29
DuckDB27
Reliability
Status page
Delta Lake
DuckDB
Adoption
Dependent repos
Delta Lake152
DuckDB1
Github stars
Delta Lake8,960
DuckDB40,661
Package downloads weekly
Delta Lake8,577,014
Activity
Commits last 30d
Delta Lake100
DuckDB100
Release
Cadence days
Delta Lake50
DuckDB28
History
Delta Lake20 items
DuckDB20 items
License
Spdx
Delta LakeApache-2.0
DuckDBMIT
Language
Primary
Delta LakeScala
DuckDBC++
Market

Capabilities

Feature-by-feature on the axes that matter for data warehouse software. “-” means undocumented, not absent.

Deployment
Deployment
Delta LakeSelf-hosted
DuckDBEmbedded
Architecture
Architecture
Delta LakeSeparated storage/compute
DuckDB-
Compute model
Delta Lake-
DuckDB-
Query
SQL dialect
Delta Lake-
DuckDBVendor-specific
Federation / lakehouse query-in-place
Delta Lake
DuckDB
Interoperability
Table-format support
Delta LakeDelta, Iceberg, Hudi
DuckDBParquet, CSV, JSON, Iceberg, Delta Lake, Vortex, DuckLake, Lance, Arrow, Avro, E
Scale
Concurrency scaling
Delta Lake-
DuckDB-
Ingestion
Streaming ingest
Delta Lake
DuckDB-
Data model
Semi-structured (JSON/VARIANT)
Delta Lake-
DuckDBFunctional
Analytics
ML / in-DB functions
Delta Lake-
DuckDB
Sharing
Data sharing / marketplace
Delta Lake
DuckDB-
Licensing
Licence class
Delta LakePermissive OSS
DuckDBPermissive OSS

What each one is

The product in its own terms, so the numbers below have context.

Delta Lake

An open-source storage framework enabling lakehouse architecture with support for multiple compute engines including Spark, Flink, Trino, Snowflake, BigQuery, and others.

Independently observed

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.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Delta Lake

Open source
as of verify ↗

DuckDB

Open sourceFree tier

Free, open source under MIT license

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Delta Lake
DuckDB
macOS
Delta Lake
DuckDB
Windows
Delta Lake
DuckDB
Linux
Delta Lake
DuckDB
CLI
Delta Lake
DuckDB
Deployment
Cloud / SaaS
Delta Lake
DuckDB
Self-hosted
Delta Lake
DuckDB
On-premise
Delta Lake
DuckDB

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • Excel

Delta Lake

29 total - 28 not shared
  • Apache Spark
  • Apache Flink
  • Apache Hive
  • Apache Pulsar
  • Apache Druid
  • ClickHouse
  • Trino
  • PrestoDB
  • StarRocks
  • RisingWave
  • Dagster
  • Hopsworks
  • MLflow
  • Kafka
  • AWS Athena
  • AWS EMR
  • AWS Glue
  • Azure Stream Analytics
  • Google BigQuery
  • Snowflake
  • Databricks
  • AWS Redshift
  • Microsoft Fabric
  • Power BI
  • +4 more
Independently observed

DuckDB

27 total - 26 not shared
  • 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
  • Vortex
  • DuckLake
  • +2 more
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.