Substack enables seamless content imports from the following services: Medium, Ghost, Wordpress, Mailchimp, Beehiiv, SeekingAlpha, Tumblr, Tinyletter, and Blogspot. Just paste in your blog or newsletter URL to get started.
Things to note:
1. Log into your account and navigate to your publication's Settings page. Click on Import in the left navigation bar.
2. Next to "Import posts", click on "Import".
3. Paste the URL of the website you'd like to import, such as https://tinyletter.com/your or https://medium.com/@your. If you're importing your posts from Mailchimp, use your email campaign archive as the URL.
Tip: If you're importing content from Seeking Alpha, use the following URL:
http://seekingalpha.com/author/<author_id>. Replace "author_id" with your Seeking Alpha author name. For example:
4. Once the Substack importer has found your archive, select "Import". Alternatively, you can upload a .csv file of your posts. If you have payments enabled on your Substack publication, you'll see the option to import the posts as paid posts.
Note: Importing posts from Mailchimp, Webflow, or Tumblr requires you to upload an export of your posts from those platforms. When importing from Mailchimp, please be sure to upload the Campaigns zip file–don't unzip it first.
Imported posts may appear with a platform's subscribe options or a banner at the bottom of a post. To remove the unnecessary text, head to your Posts page and select the three dots next to your imported post.
Delete the selected text or image and choose "Continue" to update your changes. Select your audience and if you'd like to send the imported post as an email to your Substack subscribers and the Substack app.
How do import my posts manually?
If you're running into issues with exporting a file or importing it to your Substack publication, you can copy-and-paste each post into the Substack editor.
Once each post has been published, you can go into that post’s settings and change the publication date so that it matches the date of original publication.