Multi-File CSV Table Merger
CSV DATASET BLOCKS TO MERGE
MERGE OPTIONS
Merged CSV output will appear here...
Combine Fragmented Export Files
Monthly financial statements, multi-region sales reports, or web scraper batches are frequently broken into dozens of separate CSV files. Merging CSV blocks into a single master file with header deduplication prepares datasets for SQL import.
Frequently Asked Questions
Common questions about this tool.
How are headers handled when merging multiple CSVs? ▼
By default, the merger keeps the header row from the first CSV block and strips subsequent duplicate headers from other blocks.
How many CSV blocks can I combine? ▼
You can combine as many CSV text blocks as your browser memory permits.
Is my data secure? ▼
Yes. All file merging runs locally inside your browser.
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