Text File Merger – Combine Multiple TXT Files into One Online

Combine multiple plain-text TXT files into a single merged document with optional custom separators — entirely in your browser, no upload needed.

Drag & Drop text files here

Select multiple files to merge

Supported: TXT, CSV, MD, JSON, XML, HTML, CSS, JS

What is this tool?

Text File Merger is a free browser-based tool that combines multiple plain text (.txt) files into a single unified document in seconds. You can add custom separators — blank lines, dashes, custom headers, or any text — between each file to keep content clearly divided. All merging happens inside your browser; your files are never uploaded to a server, so logs, notes, and personal text data stay private. It is ideal for developers combining log files, writers merging chapter drafts, and analysts consolidating exported data files.

How to use this tool?

1. Click "Upload Files" or drag and drop two or more .txt files onto the tool 2. The files load in your browser — no server upload happens at any point 3. Optionally enter a custom separator (blank line, dashes, or any text) to insert between each file 4. Reorder the files if needed to control the final output sequence 5. Click "Merge Files" to combine all files into one document 6. Copy the merged content to your clipboard or download it as a new .txt file

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