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Join Letterbase

How it works

1. You fill the form with your newsletter information 2. We manually check if everything is okay and add you to the letterbase (We add new newsletters every week) 3. Possible sponsors will be able to find your newsletter through letterbase and contact you directly ๐Ÿ‘ โ„น If you have any problems you can send a Twitter DM here or an email to:


In case we have to contact you (we won't send spam)

Newsletter Name

Logo (Recommended: 512x512px)

Can be a URL or File doesn't have to be both.
Logo URL
Logo File
Size limit: 10 MB


Email for possible sponsors to contact you


Average price or range of the sponsorships/ads. Ex: $50/150.

What are your followers interested in?

Ex: tech, marketing, design...

Who are your followers?

Ex: marketers, developers, indie hackers...


Are you open to collaboration with other newsletters?

If yes it will be shown in your profile


Open Rate

Click Rate

Twitter @

Language (default: English)

Other (any other info you'd like to add)