- Opera Glass: This website provides librettos for over 100 operas, translated to English by Amanda Holden. The librettos are available in PDF format and can be downloaded for free.
- Aria-Database: This website offers librettos for various operas, with some translations available in English. The librettos are presented in HTML format and can be viewed online or downloaded for free.
- Libretalia: This website is dedicated to providing librettos for operas, operettas, and musicals. It offers a wide range of librettos, many of which are translated to English. The librettos are available in PDF format and can be downloaded for free.
- Metropolitan Opera: The Metropolitan Opera's website offers librettos for all the operas in its repertoire. The librettos are available in multiple languages, including English, and can be downloaded for free as PDFs.
- Opera Depot: This website provides a collection of opera librettos translated to English. The librettos are available in PDF format and can be downloaded for free.
- Karadar: Karadar is a website dedicated to providing opera librettos and translations. It has a large collection of librettos, including many that are translated to English. The librettos can be downloaded for free as PDFs.