Here is the list of some (free) ELT online journals. It might be sometimes difficult for ELT students and teachers to find free articles on topics relevant to language teaching and learning. Please feel free to add more to the list as a comment.
Scope of the journal: Theory and practice in English language teaching and learning, teaching English as a second or foreign language, English language teachers’ training and education.
Studies in English Language Teaching
Scope of the journal: English language teaching, second language acquisition, applied linguistics teaching and learning.
International Journal of English Language Teaching
Scope of the journal: Theory and practice in English language teaching and learning, teaching English as a second or foreign language, English language teachers’ training and education, English for special purpose, English linguistics and literature.
International Journal of English Studies
Scope of the journal: English Language and Linguistics, Applied English Linguistics, Literature in English and Culture of the English-speaking countries
The Journal of Linguistics and Language Teaching
Scope of the journal: Linguistics, foreign language methodology
Scope of the Journal: Using technology for language teaching
Scope of the journal: Language acquisition and language learning
International Journal of English Language Education
Scope of the journal: Theory and practice in English Language Teaching and Learning, Teaching English as a Second or Foreign Language, English language teachers’ training and education, Studies in English Culture and Literature
Scope of the journal: Foreign language reading and literacy
Computer Assisted Language Learning- Electronic Journal
Scope of the journal: Computer-assisted language learning
Language Learning and Technology
Scope of the journal: Second language acquisition and computer-assisted language learning
Teaching English as a Second or Foreign Language
Scope of the journal: Teaching English as a second or foreign language
Scope of the journal: Learning and teaching of official languages; second language teacher education; and the maintenance and development of minority, heritage, or Aboriginal languages.
Latin American Journal of Content and Language Integrated Learning
Scope of the journal: CLIL (Content and Language Integrated Learning), multilingualism, interculturalism, and CALL, throughout Latin America and around the world
English Language Teacher Education and Development
Scope of the journal: Theories of teacher education and development, Implementation and evaluation of teacher education theories, Design, development and evaluation of ELT teacher education programmes, Exploration of current issues in teacher education such as appraisal, supervision, mentoring, Staff development through institutional development and action research, Classroom centred research and its implications for English language teacher education.