- World Atlas of Language Structures (WALS)
- International Phonetic Association (IPA)
- IPA Chart With Sounds
- The International Phonetic Alphabet
- SAMPA – computer readable phonetic alphabet
- SAMPA/X-SAMPA to IPA translator
- Type IPA phonetic symbols for all languages
- VanFunFun YouTube channel
- LingoJam, make a translator now
- PHPSyntaxTree
- RSyntaxTree
- How languages evolve (video by Alex Gendler)
- Lexilogos étymologie
- Leipzig Glossing Rules
- Online Etymology Dictionary
- Etymology Maps
- European Word Translator (maps)
- Omniglot, the online encyclopedia of writing systems and languages
- Se me va de la lengua
- No solo de yod
- Promotora Española de Lingüística (PROEL)
- Linguapax
- SIL International
- Buck’s List of Indo-European Semantic Fields
- Linguistics Education Resource Guide