
JSONFormatter.org
Code Beautify JSON Validator
FreeFormatter
CyberChef
IT Tools
CodeBeautify
CodeSwissKnife
55 free formatters, converters, generators, and reference tools for developers — JSON, Base64, JWT, regex, hashes, subnets. Nothing you paste is ever uploaded.

MailChimp
Brevo
GetResponse
Constant Contact
ActiveCampaign
SendPulse
Campaign Monitor
Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!

Which is more popular?
Based on our record, MailerLite seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | whitekit.dev | mailerlite.com |
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| Platforms | — | |
| Company | — | Startup from Lithuania |
| Listed in |
In their own words, as submitted to SaaSHub.


WhiteKit brings together 55 developer tools in one place: formatters (JSON, XML, SQL, YAML), converters, security utilities (JWT, hashing, encoding), network calculators, and text tools. Everything runs 100% client-side. Your data never leaves your device, so you can safely paste API keys,...
No description of MailerLite yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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MailerLite Review, Comparisons & How to Get Started in 2019
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using WhiteKit.dev and MailerLite. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of WhiteKit.dev yet. Be the first one to post
MailerLite manually reviews each account before allowing it to send out emails to prevent spam and abuse. During the approval process, you’ll need to provide quite a bit of information about what you plan on sending...
MailerLite is loved for its visual click maps, which allow for detailed customer journey analytics, and its email verifier features, so your emails reach your audiences’ inboxes.
MailerLite emerges as an email marketing platform that thrives on simplicity and efficiency. Its user-friendly design, coupled with powerful features like automation and segmentation, positions it as an excellent...
Recommendations tracked on public social media and blogs since March 2021.


Tracking WhiteKit.dev since Aug 2026.
- mailing list tool: mailerlite.com (free automation, allows public newsletter archive so no need for blog), mailchimp.com (serious automation is paid), activecampaign.com (paid). Source: about 5 years ago
Also, personally I would recommend MailerLite over MailChimp. It is much more user-friendly and has more powerful features. I switched from MailChimp. Source: over 5 years ago
When comparing WhiteKit.dev and MailerLite, you can also consider the following products.

Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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MailChimp is the best way to design, send, and share email newsletters.
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Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.
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Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
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Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.
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Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.
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