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Move account API and incoming Move activities.

Import of follows, blocks, mutes and lists exists but is off by default; admins enable it per role.

Follows, blocks and mutes.

LDAP is built in; OAuth consumer login (Keycloak, Google and others) is set via an environment variable.

LDAP built in; other providers through Ueberauth OAuth strategies.

Default limit is 10 fields.

Notes cannot be edited locally and incoming Note updates are skipped.

Plain text, HTML, Markdown, BBCode and MFM are allowed post formats by default.

Markdown, BBCode and MFM source formats.

MFM accepts some Markdown syntax such as bold, code, quotes and links, but it is not full Markdown.

Default limit is 5000 characters.

Limit is a hardcoded constant (3000). Additionally, there is a limit of 8192 characters for incoming posts, after which they get truncated without warning.

Set in the config file, or in AdminFE only if database config is enabled (off by default).

Set :instance limit in config, or in admin-fe when database config is enabled.

One scheduled note per user by default; admins can raise the limit per role.

Supprted by backend but not frontend (yet)

Frontend-only drafts

Supprted by backend but not frontend (yet)

One pinned post by default (max_pinned_statuses).

Supprted by backend but not frontend (yet)

Old notes can be hidden or made followers-only automatically, but not deleted.

Per-post expiry via expires_in.

Per-post expiry; admins can also set a global expiry via MRF.

Needs an admin to set a DeepL API key.

Needs an admin to configure DeepL, LibreTranslate, Mozhi or translateLocally.

Admin must configure DeepL, LibreTranslate or ArgosTranslate.

Any file type can be attached by default.

No conversion is performed so it depends on client/browser if it displays correctly or not

No conversion is performed so it depends on client/browser if it displays correctly or not

Up to 16 files per note.

max_media_attachments defaults to 1000.

No limit on attachment count is enforced.

Images with EXIF get a re-encoded public copy without metadata; the original stays on the server.

Needs the Exiftool StripLocation upload filter; setup enables it by default only when exiftool is installed.

Server only generates video thumbnails.

Channels exist but are local-only and do not federate.

Called home visibility.

Instance mute hides a server for that person.

Controlled by the discoverable setting.

Indexing by search bots is controlled by the discoverable flag.

Signatures are only checked on inbox POSTs.

Off by default (authorized_fetch_mode).

Silenced instances.

SimplePolicy can remove a server from the federated timeline, force NSFW or strip media.

SimplePolicy can remove a server from public timelines, strip media or mark it sensitive.

SimplePolicy accept list.

Needs hCaptcha, reCAPTCHA, Turnstile or a self-hosted mCaptcha server.

Built-in native captcha, enabled by default.

Built-in native captcha provider.

Prohibited words reject notes and sensitive words force home visibility, for local and remote notes.

Message Rewrite Facility, including keyword, media and per-server policies.

Note search is off by default and must be allowed per role; Meilisearch optional.

Built-in database search by default; Meilisearch or Qdrant optional.

Built-in database search; Meilisearch or Elasticsearch optional.

Per-user Atom and RSS feeds.

User RSS and Atom feeds and hashtag RSS feeds.

Signs and verifies draft-cavage signatures only.

Not in Misskey; Sharkey adds it as a fork feature.

Official Docker setup is provided, but the image is built locally rather than published.

PostgreSQL only.

PostgreSQL only.

PostgreSQL is required.

PostgreSQL only.

PostgreSQL only.

PostgreSQL is required.

Admins set default light and dark themes; users can install themes.

Admins can add custom Elixir MRF policy modules; no general plugin system.