JSON Formatter and Validator
Format, compress, and validate JSON. See the exact location of syntax errors and optionally sort object keys.
Local processingCSV Viewer
About this tool
Open a CSV file and inspect it as a table directly in your browser. The tool can detect comma, semicolon, or tab separators, use the first row as column names, and display the number of rows and columns.
Features
- Detect common separators automatically
- Choose the separator manually
- Use the first row as column names
- Sort the displayed table
- Show row and column counts
How to use
- Open a CSV file: Choose the CSV file you want to view.
- Check the settings: Confirm the separator and whether the first row contains column names.
- View the table: Inspect and sort the rows in the table.
Examples
- Review a CSV export from a spreadsheet or report
- Check whether the separator is correct before converting the file
- Find malformed rows before importing data elsewhere
- Preview a CSV file without opening spreadsheet software
Limitations
- Embedded newlines inside quoted fields are supported
- Very wide or large files may affect table performance
- The uploaded file is processed directly in your browser and is not sent to a server.
FAQ
- Which delimiters are supported?
- Comma, semicolon, tab, and pipe—with auto-detection from a sample of rows.
- Can I paste CSV instead of uploading?
- Yes. Paste raw CSV text into the input area for the same table preview.
- Does it modify my file?
- No. This is a read-only viewer; export or edit in other tools if needed.