CSV Viewer
Open large CSV files in a sortable, filterable table without a spreadsheet app.
Processed locallyRuns in your browserNo account required
Browser-based processing: Your files are processed locally in your browser and are not uploaded during processing.
Frequently asked questions
- Yes. CSV Viewer is completely free with no account, no sign-up and no usage limits beyond fair-use rate limiting.
- This tool processes files locally in your browser. Your files are not uploaded to our server during processing.
- Browser-based tools are limited mainly by your device memory and browser capabilities.
Related data tools
CSV to JSON
Convert CSV into JSON arrays or objects with type inference and custom delimiters.
Open tool→
JSON to CSV
Flatten nested JSON into CSV with automatic column discovery.
Open tool→
XML to JSON
Convert XML documents into clean JSON with configurable attribute handling.
Open tool→
YAML Converter
Convert YAML to JSON and JSON to YAML with full round-trip fidelity.
Open tool→
TSV Converter
Convert between TSV, CSV and JSON for tab-separated exports.
Open tool→