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| HDF5 Last Updated on 2026-07-28 The HDF5 Field Guide

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HDF5 High Level Lite

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# HDF5 Lite APIs

## Introduction

The HDF5 Lite API (H5LT) provides simplified functions for common HDF5 operations, combining multiple low-level calls into single high-level functions. This reduces code complexity and makes HDF5 more accessible for straightforward data storage tasks.

See also
  HDF5 Lite APIs (H5LT,H5LD) Reference Manual

## Dataset Operations

Create and access datasets with single function calls using type-specific functions like H5LTmake_dataset_int, H5LTmake_dataset_float, H5LTread_dataset_int, etc. Query dataset properties with H5LTget_dataset_ndims, H5LTget_dataset_info, and H5LTfind_dataset.

## Attribute Operations

Set and read attributes using type-specific functions such as H5LTset_attribute_int, H5LTset_attribute_string, H5LTget_attribute_int, etc. Query attribute information with H5LTget_attribute_ndims and H5LTget_attribute_info.

## Utility Functions

Convert between datatypes and text representations using H5LTtext_to_dtype and H5LTdtype_to_text. Validate paths with H5LTpath_valid, and work with file images using H5LTopen_file_image.

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