CSV Viewer and Editor
About Tool
Working with CSV files shouldn't always require launching a heavy spreadsheet application. This CSV Viewer and Editor provides a lightweight, browser-based environment to inspect and modify your data instantly. It is perfect for developers who need to quickly check the contents of a data export or analysts who need to make surgical edits to a specific row without worrying about automatic formatting changes that Excel sometimes forces on your data.
The tool parses your raw CSV input into an interactive table, where you can edit individual cells directly. If your data is currently in a different format, you might use the Excel to JSON or JSON to CSV utilities to move information into this editor. Because the editing happens in your browser, your data remains private and never leaves your local machine.
Interactive Editing and Real-time Updates
Once you click "Load & Edit Table," the "Table Preview" section becomes an active editor. You can click into any cell to change its value. As you make changes, the "Current CSV Data" output updates in real-time, reflecting your edits in the raw CSV format. This is incredibly useful for fixing typos in large datasets or updating specific values before re-importing the file into a database. You can also toggle the "Has Header Row" setting to ensure the first line of your data is treated as labels rather than values.
Custom Delimiter Support
Not all "comma-separated" files actually use commas. This editor supports a variety of common delimiters, including Semicolons, Tabs, and Pipes. This flexibility ensures you can open and edit data exported from a wide range of international systems and legacy software without the text becoming a jumbled mess in a single column.
Frequently Asked Questions
Can I add or remove rows and columns?
The current version focuses on editing existing cell values. For adding or removing structure, it is often easiest to make those changes in the raw text box before loading the table.
Will it mess up my date formatting?
Unlike some spreadsheet software, this tool treats your data as text. It won't "auto-correct" dates or strip leading zeros from phone numbers unless you manually edit them.
What is the maximum file size I can load?
The editor is optimized for small to medium-sized CSVs (a few thousand rows). For extremely large files, a dedicated offline editor may perform better.
How do I save my changes?
Once you've finished editing, simply copy the updated text from the "Current CSV Data" box and save it as a .csv file on your computer.
Similar Tools
-
CSV Cleaner and Deduplicator
Clean CSV files by removing duplicate rows, empty rows, and messy spacing issues.
-
CSV Column Extractor
Extract selected CSV columns quickly for reporting, cleanup, and spreadsheet workflows.
-
CSV Merger
Merge multiple CSV datasets with matching columns into one downloadable combined file.
-
CSV Splitter
Split large CSV data into smaller chunks by row count for easier export and sharing.
-
CSV to JSON
Convert CSV text into structured JSON for APIs, code, and data workflows.
-
CSV to SQL
Convert CSV rows into SQL INSERT statements for database seeding and import workflows.
-
Excel to JSON
Convert spreadsheet rows into JSON objects for integrations and development tasks.
-
JSON to CSV
Convert JSON arrays into CSV output for spreadsheets, exports, and reporting.
Reviews