CSV viewer

View, filter and sort CSV data in seconds

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CSV viewer

View and filter CSV files

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View and filter CSV files online

Our CSV viewer allows you to upload and view CSV files directly in your browser. It provides a clean and organized display for easy navigation and analysis of your data.

This tool supports large CSV files and offers fast loading times, making it suitable for quick data reviews without the need for additional software.

Simply upload your CSV file and start exploring your data immediately.

Easily upload and view CSV files directly in your browser.

Displays data in a clean and organized manner for easy navigation.

Supports large CSV files, ensuring smooth performance.

User-friendly interface with quick loading times.

No need for additional software—just upload and view.

Ideal for quick data reviews and analysis.

CSV format

CSV (Comma Separated Values) files are the most common format for storing tabular data. Values in a row are separated by commas and rows are separated by newlines.

CSV files often start with a header row that has column names, but this is not required.

Each row in a CSV file must have the same number of values as the header row.

CSV files do no enforce types or a schema. This means that each column can have multiple types, which can make analysis difficult and compression inefficient.

Parquet files can be easier to analyze and compress better than CSV files.

How to view and filter CSV files online

  1. Upload your CSV file
  2. Your file will be loaded and then you can view your CSV data
  3. Sort data by clicking a column name
  4. Filter a column by clicking the three dots
  5. Export your CSV file in CSV or Excel format by clicking the export button

How to view and filter CSV files in Python with Pandas

First, we need to install pandas

pip install pandas

Then we can load the CSV file into a dataframe.

df = pd.read_csv('path/to/file.csv')

We can view the first few rows of the dataframe using the head method.

print(df.head(n=5))

The n parameter controls how many rows are returned. Increase it to show more rows.

We can view the last few rows of the dataframe using the tail method.

print(df.tail(n=5))

We can sort the dataframe using the sort_values method.

df = df.sort_values('column_name', ascending=true)

Just replace 'column_name' with the name of the column you want to sort by. The 'ascending' parameter controls whether the values will be sorted in 'ascending' or 'descending' order.

We can filter the dataframe using comparison operators. The following statement will filter a dataframe to rows where the value of the 'column_name' column is greater than 5.

df = df[df['column_name'] > 5]

How to view and filter CSV files in Python with DuckDB

First, we need to install duckdb for Python

pip install duckdb

The following duckdb query will create a view from the input CSV file.

duckdb.sql("""SELECT * from path/to/file.csv""")

Sometimes we have large file and it's impractical to read the whole file. We can read the first 5 rows using the following.

duckdb.sql("""SELECT * from path/to/file.csv limit 5""")

We can sort rows using the ORDER BY clause and a SQL comparison operator.

duckdb.sql("""SELECT * from path/to/file.csv order by 'column_name' ASC limit 5""")

Just change 'column_name' for the column you want to sort by. Use ASC to sort ascending or DESC to sort descending.

We can also filter using SQL comparison operators and the WHERE clause.

duckdb.sql("""SELECT * from path/to/file.csv where 'column_name' > 5 ASC limit 5""")

You can change the 'column_name' to change the column you want to filter by. The operator (>) and value (5) control how the filtering is applied to 'column_name'.

MT cars

Motor Trends Car Road Tests dataset.

filename

mtcars.csv

rows

32

Flights 1m

1 Million flights including arrival and departure delays.

filename

flights-1m.csv

rows

1000000

Iris

Iris plant species data set.

filename

iris.csv

rows

50

House price

Housing price dataset.

filename

house-price.csv

rows

545

Weather

Weather dataset with temperature, rainfall, sunshine and wind measurements.

filename

weather.csv

rows

366