metadata

title: >-
  How do I increase the upload limit of st.file_uploader on Streamlit Community
  Cloud?
slug: /knowledge-base/deploy/increase-file-uploader-limit-streamlit-cloud

How do I increase the upload limit of st.file_uploader on Streamlit Community Cloud?

Overview

By default, files uploaded using st.file_uploader() are limited to 200MB. You can configure this using the server.maxUploadSize config option.

Streamlit provides four different ways to set configuration options:

In a global config file at ~/.streamlit/config.toml for macOS/Linux or %userprofile%/.streamlit/config.toml for Windows:
```
[server]
maxUploadSize = 200
```
In a per-project config file at $CWD/.streamlit/config.toml, where $CWD is the folder you're running Streamlit from.
Through STREAMLIT_* environment variables, such as:
```
export STREAMLIT_SERVER_MAX_UPLOAD_SIZE=200
```

As flags on the command line when running streamlit run:

streamlit run your_script.py --server.maxUploadSize 200

Which of the four options should you choose for an app deployed to Streamlit Community Cloud? 🤔

Solution

When deploying your app to Streamlit Community Cloud, you should use option 1. Namely, set the maxUploadSize config option in a global config file (.streamlit/config.toml) uploaded to your app's GitHub repo. 🎈

For example, to increase the upload limit to 400MB, upload a .streamlit/config.toml file containing the following lines to your app's GitHub repo:

[server]
maxUploadSize = 400

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How do I increase the upload limit of st.file_uploader on Streamlit Community Cloud?

Overview

Solution

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