Cusdis is a tiny open-source comment widget, a few kilobytes on the page, built for small and static sites. It sets no cookies and asks readers for no sign-in to leave a comment. You can self-host it or use the project’s hosted option, and you moderate from a simple dashboard where comments stay hidden until you approve them.
Reviewed by Marco Wollank
Cusdis
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Threat level
Covered
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Our take
Cusdis is the minimalist choice when you want a comment box that respects readers and barely touches the page. It loads no cookies, asks for no login, and gives you a hosted option if you would rather not run a server at all, which is the gap Remark42 leaves open. The honest catch is that minimal cuts both ways: moderation and features are thin, there is no built-in spam filter, and it is a small project, so you are trusting a lean codebase and approving comments by hand. Pick Cusdis for a low-traffic personal site where simplicity and a clean reader experience matter most. For a busier site that needs stronger moderation, a fuller engine like Isso or Remark42 will serve you longer.
GitHub at a glance
djyde/cusdis
Stars
2,785
+ 3 this week
Last commit
9mo ago
slowing
License
GPL-3.0
Latest release
v1.3.0
4.6y ago
Stars, last 30d
Website at a glance
cusdis.com
D- score 25
Weak website security headers
Graded by Mozilla HTTP Observatory, tested 13d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Cusdis alternatives
Remark42 Self-hosted comment engine that adds threaded discussions to any site with no trackers, no ads, and no third-party scripts loaded on your readers.
giscus Comment widget that stores every thread as a GitHub Discussion, so there is no server to run and no ad scripts or tracking cookies loaded on your readers.
Isso The classic self-hosted Disqus replacement: a small Python server on a SQLite file that adds comments with no tracking and no third-party scripts.
Cusdis license, in plain English
GPL-3.0 Strong copyleft
Free to use and modify, but anything you distribute that is built on it must also be open under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.
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