Merge CSVs
Combine multiple CSV or TSV files with matching column structures into a single unified file. Ideal for consolidating data exports from different sources or time periods. All processing runs locally on your self-hosted SnapOtter instance.
Features
- Merges multiple CSV or TSV files into one
- Validates matching column structure across input files
- Removes duplicate headers from subsequent files
- Supports both comma and tab delimiters
- Handles large combined datasets efficiently
What you can do
- Merging monthly sales CSV exports into a yearly aggregate file
- Combining regional data exports from different offices into one dataset
- Consolidating multiple survey response CSV files for analysis
- Joining split CSV parts back into a single complete file
Self-hosted. Your files never leave your network.
SnapOtter runs entirely on your own infrastructure. Files processed with Merge CSVs are never uploaded to third-party servers. Deploy a single Docker container and process files with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- Do the CSV files need the same columns?
- Yes, the tool validates that input files have matching column structures to ensure a clean merge. All processing happens locally on your self-hosted SnapOtter instance.
- Can I merge TSV files as well?
- Yes, the tool supports both CSV and TSV formats. It handles comma and tab delimiters automatically. Processing runs entirely on your own server.
- Is there a limit on how many files I can merge?
- You can merge multiple files in a single operation. All merging happens locally on your self-hosted infrastructure so your data never leaves your network.
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