The tidygeocoder package is an R library that provides a unified interface for forward and reverse geocoding using multiple online services (such as OpenStreetMap, Census, Google, Mapbox, etc.). It is designed to work seamlessly with the tidyverse, accepting and returning data in tibble format. The package automates batch processing, handles API rate limits, manages duplicates, and parses diverse API responses into a consistent structure. Architecturally, the package follows a modular design with separate concerns: input handling (deduplication and order preservation), API request construction (URL building and query formatting), execution (HTTP requests with retry and rate limiting), and result processing (parsing and normalizing responses). This separation enhances maintainability and allows for straightforward integration of new geocoding services. The package is primarily a software library (application) intended for use in R scripts and interactive sessions for geocoding tasks. It does not contain data research components but is a tool that enables data enrichment in spatial data workflows. Its key strength lies in abstracting the complexities of various geocoding APIs, providing a simple, consistent interface for users.