Insert containers laid out as side-by-side columns.

Inserts a number of multi-element containers laid out side-by-side and returns a list of container objects.

To add elements to the returned containers, you can use "with" notation (preferred) or just call methods directly on the returned object. See examples below.

Columns can only be placed inside other columns up to one level of nesting.


Columns cannot be placed inside other columns in the sidebar. This is only possible in the main area of the app.

Function signature[source]

st.columns(spec, *, gap="small")


spec (int or list of numbers)

If an int
Specifies the number of columns to insert, and all columns have equal width.
If a list of numbers

Creates a column for each number, and each column's width is proportional to the number provided. Numbers can be ints or floats, but they must be positive.

For example, st.columns([3, 1, 2]) creates 3 columns where the first column is 3 times the width of the second, and the last column is 2 times that width.

gap (string ("small", "medium", or "large"))

An optional string, which indicates the size of the gap between each column. The default is a small gap between columns. This argument can only be supplied by keyword.


(list of containers)

A list of container objects.


You can use with notation to insert any element into a column:

import streamlit as st

col1, col2, col3 = st.columns(3)

with col1:
   st.header("A cat")

with col2:
   st.header("A dog")

with col3:
   st.header("An owl")

Or you can just call methods directly in the returned objects:

import streamlit as st
import numpy as np

col1, col2 = st.columns([3, 1])
data = np.random.randn(10, 1)

col1.subheader("A wide column with a chart")

col2.subheader("A narrow column with the data")

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