Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.ATier ANo paid feature gates in the self-run editionMIT LicenseA short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code.MayCommercial useModificationDistributionPrivate useMustLicense and copyright noticeNoLiabilityWarrantySummary from GitHub's choosealicense.comSelf-hostable: yesYou can run it on your own server.
Boards and task automation fit visual team workflows. Kanboard offers APIs/plugins; Trello Power-Ups and rules require rebuilding. No validated direct Trello importer in this review; no official native mobile client, responsive web UI available.
Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.ATier ANo paid feature gates in the self-run editionMIT LicenseA short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code.MayCommercial useModificationDistributionPrivate useMustLicense and copyright noticeNoLiabilityWarrantySummary from GitHub's choosealicense.comSelf-hostable: yesYou can run it on your own server.
Comparable boards, lists, cards, labels, due dates and checklists. Trello Power-Ups and Butler rules require replacement; official page describes a Trello JSON/attachment downloader and import work, so test attachment import rather than assuming full migration.
Source-available or unresolved
Kept apart: these are not open source by the OSI definition, or their license scope is not settled.
Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.STier SSource-available license, not OSIPLANKA Community 1.1 (custom license)Not a standard license, so GitHub's license summaries don't cover it. Read the project's license text before relying on it.Self-hostable: yesYou can run it on your own server.
Source-available comparison only, hidden by default from OSS recommendations. Boards/cards/checklists and board import available, but Pro required for calendar, templates, public boards and exports; commercial third-party hosting and cross-organization business use restricted by license. Test import coverage before migration.
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MIT License A short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code. May Commercial useModificationDistributionPrivate use Must License and copyright notice No LiabilityWarranty Summary from GitHub's choosealicense.com Self-hostable: yesYou can run it on your own server.