Merge multiple text files into a single document effortlessly
Tired of copying and pasting dozens of text files manually? TextMerger is a lightweight, fast and reliable tool designed to merge unlimited text-based files (plain text files, TXT, CSV, TSV, JSONL, etc.) into one unified file. Save your time and boost your workflow.
Support Windows, Linux & macOS
Add and merge hundreds of text files at once, no file quantity limits for regular use.
Preserve line breaks, encoding and original content layout of all imported text files.
Works with UTF-8, ANSI, ASCII and common text encodings for cross-platform compatibility.
No complicated setup, runs smoothly on all Windows devices with low resource usage.
Adjust the sequence of files before merging for perfect arrangement.
100% offline tool, your files never leave your local device to protect data privacy.
Merge from a script or a scheduled task. Run a saved .tmt task, or merge files directly with TextMerger merge - no GUI needed.
Select all the TXT or text files you want to combine.
Rearrange file sequence to match your desired final document.
Click the merge button to combine all files to a single text document instantly.
One log file per day - or logs from several machines - into one file you can search or attach to a ticket.
A CSV per month, put back together for the year, in the order the months happened.
part-0001.jsonl, part-0002.jsonl ... merged back into the one file the next step wants.
Schema, tables, indexes and seed data, joined in the order you choose rather than the order the names sort in.
UTF-8 here, GBK there, UTF-16 from a Windows app - merged into one file with a single encoding.
Logs from several machines, interleaved by timestamp instead of appended one file after another.
Overlapping exports merged with the repeated rows (and repeated headers) removed as they are written.
Need the opposite - cutting one big file into smaller pieces? Use BigTextFileSplitter, or split a TXT file. Opening a very large log instead of merging it? Use BigTextFileViewer. Converting between formats after merging? Use DataFileConverter. Prefer the browser? merge TXT files or merge CSV files.
TextMerger mainly supports standard .txt plain text files, .csv CSV (Comma-Separated Values) file, .tsv TSV (Tab-Separated Values) file, JSONL/NDJSON/LDJSON (JSON Lines) file. It also works well with text-based files like log files and script files.
Yes. TextMerger is a fully offline desktop application. All file processing happens locally on your computer, no files are uploaded to any server.
Absolutely. You can reorder files freely before starting the merge process.
Yes. The tool supports most common text encodings including UTF-8, ANSI and ASCII to avoid garbled text after merging.
There is no strict quantity limit. It can handle large batches of text files for daily office and personal use.
Open TextMerger, add the text files (or a whole folder), put them in the order you want, and click merge. Line breaks and the original encoding are kept, and the result is written to a single new file.
Yes - merging, combining and joining text files are the same job: putting several files into one, in the order you choose. TextMerger does it for TXT, CSV, TSV, JSONL and log files, locally and without a command line.
Yes. The file list can be reordered by dragging, so the merged document follows your order rather than the file name. The list can also be saved as a session and reused.
Yes, for small files - see merge TXT files or merge CSV files. For a large batch, or for files you would rather not upload, the desktop tool is faster and keeps everything local.