
Buttondown
Substack
beehiiv
Daily Nugts - free Dynamic Newsletter
Notion Insider
NotionApps
Meco
Turn your Notion pages into beautiful newsletters

CyberChef
DevToys
CodeTray.dev
CodifyFormatter.org
DevToo.dev
Aptdot Developer Utilities
Lehuoliaoyu ToolHub
Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.

Which is more popular?
Based on our record, Notocat seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | notocat.com | codeutil.dev |
| Pricing | ||
| Company | Startup from the United Kingdom · 1 - 9 employees · 2023 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Create beautiful newsletters from your Notion pages with Notocat. Easily send, track, and grow your audience. Notocat comes packed with tools that every newsletter creator needs: Full analytics of every email you send Segments Custom fields Custom domains Custom subscription forms API access...
CodeUtil.dev is a collection of 20+ browser-based developer tools. JSON formatter & validator, regex tester, cron expression generator, Base64 encoder/decoder, JWT debugger, URL parser, hash generator, and more. Everything runs client-side — no data leaves your browser. No sign-up needed,...
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Notocat yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Notocat and CodeUtil.dev.
CodeUtil.dev's answer:
CodeUtil.dev runs entirely in the browser — all processing happens on your device, so your data never touches a server. It bundles 20+ tools (JSON, regex, Base64, JWT, cron, hashing, and more) under one roof with zero sign-up. Just open the page and start working.
Share your experience with using Notocat and CodeUtil.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Some of the features: 🎨 Advanced issues customization 📋 Custom and embeddable subscribe forms 💌 Custom domains 📈 Opens & Links tracking 🧑💻 Contacts API ⚡️ Best-in-class deliverability You can use code "PH20OFF" for a 20% lifetime... Source: over 3 years ago
Tracking CodeUtil.dev since Mar 2026.
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beehiiv empowers people to create, monetize, and grow by providing the most powerful and robust newsletter platform, holistically under one roof.
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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
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