Tool category

Merge Tools

Combine PDFs, data files, and text-based files locally in your browser.

Merge Files

Combine multiple same-format files into one downloadable file locally in your browser.

Merge PDF

Merge multiple PDF files page-by-page in upload order and download one combined PDF.

Merge CSV

Merge CSV files by keeping the first header and appending rows from later files.

Merge TSV

Merge TSV files by keeping the first header and appending rows from later files.

Merge TXT

Merge plain text files in your chosen order with clean spacing between files.

Merge JSON

Merge JSON arrays or JSON objects into one pretty-printed JSON file.

Merge XML

Merge XML documents by wrapping each document root inside one mergedDocuments root.

Merge YAML

Merge YAML files as a safe multi-document YAML stream separated by document markers.

Merge Markdown

Merge Markdown files in order with clean spacing between each document.

Merge SQL

Merge SQL files in order while preserving each script's original content.

Merge LOG

Merge log files chronologically or manually by arranging files before export.

Merge INI

Merge INI configuration files in order with clean separators between files.

Merge CONF

Merge CONF configuration files in order while preserving original text.

Choosing the right merge tool

Merging is not the same operation for every format, which is why these are separate tools rather than one. PDFs are joined page by page. CSV and TSV files are stacked as rows with a single header kept from the first file. YAML files are joined as a multi-document stream separated by document markers so nothing collides. JSON is combined structurally rather than by concatenating text.

Pick the tool that matches your format so the result still parses. Merging same-schema exports — monthly CSV reports, split log files, a set of config fragments — is the common case, and file order is preserved as you arrange it.