
JSONFormatter.org
Decodebase64.io
CyberChef
Base64.ai
All Over Tools
DevToys
Image to Base64 Converter
Base64 Encode and Decode Online

Substack
MailChimp
Notocat
Listmonk
MailerLite
beehiiv
Brevo
Buttondown is the best way to start and run your newsletter

Which is more popular?
Based on our record, Buttondown seems to be more popular. It has been mentioned 31 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | base64encode.dev | buttondown.com |
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Need to convert text quickly? Use this free Base64 Encode & Decode online tool to encode or decode data instantly. Fast, secure, and works directly in your browser.
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Share your experience with using Base64Encode.dev and Buttondown. For example, how are they different and which one is better?
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Buttondown is a (somewhat) recently launched NAAS built by a very engaged developer, beautifully designed, that looks like it might be the new TinyLetter. Subscription integrations forthcoming (eating into Substack...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Base64Encode.dev since Jan 2026.
When I first read the title, my reaction was: how dare they say my website isn't for me? Of course it is. It's my space to share thoughts, jot down notes from things I come across, publish small tools, and so on. That made me click... - Source: Hacker News / 6 months ago
One way is to deploy a full-stack app with frontend and backend where the backend connects to a newsletter service like Buttondown. However, hosting a website with a backend is more expensive than hosting a static website with no... - Source: dev.to / 9 months ago
I use Buttondown for the actual newsletter services (and I'm ashamed to confess I hadn't even went out of the boundaries of the free tier yet), I can compare it with other solutions which I used professionally, and it's much simpler than... - Source: dev.to / about 1 year ago
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Our Base64 Decoder converts Base64 encoded data back to its original format, including text, binary, and images. It’s a fast, free, and easy to use tool.
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