OPeNDAP is a free, open-source software that streamlines workflows & reduces costs for researchers, data managers & data providers.
Optimizing Access to Distributed Scientific Datasets
Photo by NASA
GET INVOLVED
New to OPeNDAP? Start here.
OPeNDAP accelerates data-driven discovery
- Used by NASA to enable discipline neutral open data access.
- Implements the DAP4 protocol, a comprehensive data model that enables data-proximate subsetting: Get only the data you need!
- Produces, parsers, and exploits the DMR++, a metadata reference file that enables
- Analysis Ready Cloud Optimized (ARCO) access to archival self-describing data file formats.
- Efficient chunk-based retrieval of cloud-hosted data via the DAP4 protocol.
BENEFITS OF OPeNDAP
Why Use OPeNDAP?
Retrieve Specific Subsets of Data
Access only the data points you need, eliminating the prohibitive time and cost of downloading full datasets.
Multiple File Formats
OPeNDAP “translates” data so that you can access data originally stored in a wide variety of file formats.
Multiple Data Types
OPeNDAP supports many types of data analyzed in scientific inquiry including gridded data, time series, and more.
Integration with Preferred Tools
Data files served through OPeNDAP can be accessed and read by commonly used tools including NetCDF, Python libraries, MATLAB, ArcGIS, and Panoply.
Extensibility & Customization
Have a unique distributed data need? Build on our open-source code yourself, or work with our team to create a custom server application.
Open Data Access Accelerates Discovery
30+
years
of experience in open data access frameworks
14+
data handlers
broad data format compatibility
10+
access patterns
broad adoption from distinct client APIs.
10+
petabytes
of data accessed through OPeNDAP’s framework
CLIENTS & FUNDERS
OPeNDAP Supporters
The following institutions have provided (and some continue to provide) financial support to OPeNDAP.
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