What is Buttercup?

50/100
Trust Score (C-)
⚠️ Use Caution

Buttercup is a firefox that Manage your online identities and credentials with Buttercup: An open-source, free and secure credentials manager.. It has a Nerq Trust Score of 50/100 (C-). 0 GitHub stars. Published by MadDev. Last analyzed April 2026.

Why This Score

Trust & Safety Overview

50
TRUST SCORE
C-
GRADE
0
STARS
0
DOWNLOADS

What Buttercup Does

Buttercup is a firefox in the firefox category. Manage your online identities and credentials with Buttercup: An open-source, free and secure credentials manager.. It is published by MadDev and has no specified license. With 0 GitHub stars and 0 downloads, it has a small community of users and contributors.

Who Should Use Buttercup

Buttercup is suitable for evaluation and non-critical use. Review the trust score breakdown before using in production.

Details

AuthorMadDev
Categoryfirefox
LicenseNot specified
Typefirefox
SourceView on GitHub
Security Score0/100
Activity Score0/100

How to Get Started

Check the trust score before installing:

curl nerq.ai/v1/preflight?target=buttercup

Setup guide · Full safety report · Production review · Is it safe?

Frequently Asked Questions

What is Buttercup used for?
Buttercup is a firefox tool. Manage your online identities and credentials with Buttercup: An open-source, free and secure credentials manager..
Is Buttercup free?
License: Check project page. Buttercup has 0 GitHub stars.
Is Buttercup safe?
Buttercup has a Nerq Trust Score of 50/100 (C-). Use with caution.
What are alternatives to Buttercup?
Top alternatives: . See full comparison.

Last updated April 2026. Trust scores based on automated analysis of public data.

We use cookies for analytics and caching. Privacy Policy