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

Lepton
SnippetsLab
Quiver
Cacher
Codespace
Pastebin.com
Dash for macOS
An open-source desktop workspace for developers: code snippets, technical notes, HTTP requests, calculations, and developer tools in one local-first app.
Which is more popular?
Based on our record, massCode seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | mailflow.sh | masscode.io |
| Pricing | ||
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Mailflow.sh yet.
massCode is an open-source desktop workspace for developers, available on macOS, Windows, and Linux. It brings together code snippets, technical notes, a full-featured HTTP client, calculations, and developer tools. Keep code, documentation, and API requests together and link related entries...
What each product offers, as listed by its team.


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


No analysis of Mailflow.sh 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.


Share your experience with using Mailflow.sh and massCode. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Mailflow.sh since Aug 2026.
To be honest, it didn't take off as I hoped. I struggled to attract enough users to make it sustainable. Eventually, I lost motivation and abandoned it to focus on my other open-source project, massCode. - Source: dev.to / 8 months ago
`cask "lepton"` [link][oss] + `cask "masscode"` [link][oss] for storing snippets as github gists or locally. Source: over 3 years ago
There are a plethora of snippet manager apps for developers, with syntax highlighting, etc, available for macOS, eg: - SnipperApp - Snip - massCode - SnippetsLab - Quiver. Source: about 4 years ago
When comparing Mailflow.sh and massCode, you can also consider the following products.