8DT is a free, privacy-first text file merger and splitter. Merge, glue, mend, split, divide and cut text files such as .txt, .csv, .tsv, .md, .log, .json, .xml, .html, .css, .js, .py, .sql, .yml, .srt and hundreds of other plain text formats. Everything runs in your browser — no files are uploaded to any server, no accounts required, no tracking.