
StackMail
A self-hosted, unified webmail client. Connect multiple IMAP/SMTP accounts and manage them all in one clean interface.

MockRest
Format JSON Online
JSON Placeholder
ReqRes
Beeceptor
Mockae
MockAPI
Free and open-source mock API for testing and prototyping. Easily create a mock API from JSON data, with the ability to define custom rules for HTTP status codes, headers, and response bodies.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | mailflow.sh | jsoning.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


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An editorial look at what each product does well and who it suits.


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