Bosworth-Toller Dictionary
- "An Anglo-Saxon Dictionary" by Joseph Bosworth, edited and enlarged by T. N. Toller. Each page of the original is available in HTML, TIFF, and PNG formats.
- http://lexicon.ff.cuni.cz/texts/oe_bosworthtoller_about.html

A Concise Old English Dictionary
- John R. Clark Hall's "A Concise Anglo-Saxon Dictionary," second edition. Each page of the original is available in HTML, PNG, and TIFF formats.
- http://lexicon.ff.cuni.cz/texts/oe_clarkhall_about.html

Electronic Application of an Anglo-Saxon Dictionary
- An online version of the Bosworth-Toller Dictionary with extensive search capabilities. Application must be downloaded before it can be used.
- http://lexicon.ff.cuni.cz/app/index.htm

Learning with the Online Thesaurus of Old English
- Shows how to use the Thesaurus of Old English. Contains 14 learning units: four introductory essays and ten interactive sessions.
- http://libra.englang.arts.gla.ac.uk/oeteach/oeteach.html

Variant Word and Phrase Search Engine
- Online tool that facilitates searching the entire Old English corpus for variant spellings of an Old English word or phrase. From the Dictionary of Old English Project.
- http://www.doe.utoronto.ca/tools/varphrase.html

Old English Lexicon
- Simple two-way dictionary. For each letter of the alphabet, lists Old English words with their modern English equivalents and modern English words with their Old English equivalents.
- http://www.northvegr.org/lore/oldenglish/index.php

Online Etymology Dictionary
- Enables lookup of etymologies of more than 30,000 modern English words. Useful for determining whether a modern English word is descended from Old English.
- http://www.etymonline.com/

Dictionary of Old English: Word of the Week
- Shows the complete DOE entry for a new word each week.
- http://www.doe.utoronto.ca/wofw/wofw.html

Dictionary of Old English: Sample Entry
- Explains in depth the ten fields of information that can appear in a DOE entry, and gives a sample entry that exemplifies these fields.
- http://www.doe.utoronto.ca/sample/sample.html

Thesaurus of Old English
- Online thesaurus that provides Old English word searches, modern English word searches, browse searches, phrase searches, and searches on flags indicating restricted occurrence.
- http://libra.englang.arts.gla.ac.uk/oethesaurus/

EOW Old English Translator
- Online tool that translates single Old English words to their modern English equivalents, and vice versa. The tool is named Englisc Onstigende Wordbōc or EOW.
- http://wandership.ca/projects/eow/

OEME Old English Dictionaries
- An Old English to modern English dictionary and a modern English to Old English dictionary from the Old English Made Easy (OEME) project.
- http://home.comcast.net/~modean52/oeme_dictionaries.htm

Old English Introductory Glossary
- Contains over one hundred basic Old English words with their modern English equivalents.
- http://people.wcsu.edu/jambeckk/glossary/gloss-oe.html

Modern English to Old English Vocabulary
- Extensive list of modern English words with their Old English equivalents.
- http://www.mun.ca/Ansaxdat/vocab/wordlist.html

Old English Flash Cards
- 1500 Old English words with their modern English equivalents.
- http://www.yorku.ca/inpar/language/OldEnglishFlashCards1.pdf

WordGumbo: Old English
- Contains both an Old English to modern English lexicon and a modern English to Old English lexicon.
- http://www.wordgumbo.com/ie/ger/oen/index.htm

Dictionary of Old English Project at the University of Toronto
- Explains the purpose of the dictionary and the methods used to build it. Includes descriptions of DOE publications and research tools, yearly progress reports, and links to other dictionaries, projects, and resources.
- http://www.doe.utoronto.ca