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Isso vs Coral: catalog facts
Isso	Coral
Best for: Blogs and static sites replacing Disqus with self-hosted comments	Best for: News organisations and publishers running moderated comment sections
Free Free and open source under the MIT license.	Free Free and open source under the Apache-2.0 license; setup and integration help is available from the Coral team.
Self-hosted	Self-hosted
Small client script of about 20kB gzipped Imports existing Disqus and WordPress comments All 4 strengths for Isso Small client script of about 20kB gzipped Imports existing Disqus and WordPress comments Simple SQLite storage Docker image and PyPI package available	Moderation tools designed for newsroom workloads No ads, trackers or marketing scripts All 4 strengths for Coral Moderation tools designed for newsroom workloads No ads, trackers or marketing scripts Integrates with existing user registration GraphQL API for customisation
Fewer features than larger comment platforms Installing from PyPI needs a C compiler and Python headers	More complex to deploy than lightweight blog comment systems Aimed at publishers rather than small personal sites
Self-hosted	Self-hosted
Open source	Open source
License: MIT	License: Apache-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Isso isso-comments.de github.com/isso-comments/isso Catalog checked October 2, 2026	Official website Full listing and sources Sources for Coral coralproject.net github.com/coralproject/talk Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.