Tech riderRev. 12 Oct 2026

Hollo

Ch 657.3of 145Social Media Management Tools

1Runs onAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
2CostsFree plan
3Supported networksMastodon, Misskey, Akkoma, WordPress, Threads, and other ActivityPub-compatible services

3 lines stated Written from the maker's own pages: docs.hollo.social

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Overview

Hollo is ranked #65 of 145 in social media management tools on Specifiction. It runs on Android, API, iOS, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Hollo plans and pricing

All plans

Free, open source, and self-hosted Free Self-hosted · single-user focused docs.hollo.social · 12 Oct 2026

Compared on social media management tools

Supported networks: Mastodon, Misskey, Akkoma, WordPress, Threads, and other ActivityPub-compatible servicesdocs.hollo.social

Facts

Product: Hollo is a single-user federated microblogging tool for running a personal server.docs.hollo.social · 5 Oct 2026
Audience: Hollo is designed for individual users and personal microblogs, notes, and journals; it can host multiple accounts on one instance.docs.hollo.social · 5 Oct 2026
Federation: Hollo uses ActivityPub to connect with services including Mastodon, Misskey, Akkoma, WordPress, and Threads.docs.hollo.social · 5 Oct 2026
Client API: Hollo is headless and implements the Mastodon API, so users interact through compatible client apps rather than a built-in web interface.docs.hollo.social · 5 Oct 2026
Writing: Posts support CommonMark formatting and can be up to 10,000 characters long.docs.hollo.social · 5 Oct 2026
Core features: Hollo supports hashtags, mentions, media attachments, polls, sharing and favoriting posts, and Misskey-style emoji reactions.docs.hollo.social · 5 Oct 2026
Quotes: Hollo supports FEP-044f-compliant quotes in Misskey-style and Mastodon-style implementations.docs.hollo.social · 5 Oct 2026
License: Hollo is distributed under the GNU Affero General Public License version 3 or later.docs.hollo.social · 5 Oct 2026
Deployment: Hollo can be deployed to Railway, with Docker, or manually on a server.docs.hollo.social · 5 Oct 2026
Requirements: Manual installation requires Node.js 24 or later, pnpm, ffmpeg, PostgreSQL 17 or later, a load balancer, and a domain name.docs.hollo.social · 5 Oct 2026
Storage: Hollo requires S3-compatible object storage for media when following the Railway deployment guide.docs.hollo.social · 5 Oct 2026
Client support: The maker lists tested web, Android, and iOS clients, including Phanpy, Moshidon, Mona, and Woolly, while noting some client features may not work as expected.docs.hollo.social · 5 Oct 2026
Client limitations: The tested-client notes say Elk does not support emoji reactions and treats quotes as write-only; Phanpy reactions are read-only.docs.hollo.social · 5 Oct 2026
Security configuration: Hollo requires a session secret key of at least 44 characters, and its documentation warns that enabling the Fedify debugger in production exposes internal trace data.docs.hollo.social · 5 Oct 2026
Privacy controls: Hollo can proxy or cache remote media through its own origin, with SSRF checks and a 32 MiB body cap in proxy and cache modes.docs.hollo.social · 5 Oct 2026
What it does: Hollo is a self-hosted, single-user microblogging server for the fediverse.docs.hollo.social · 12 Oct 2026
Client access: Hollo has no web app of its own and provides a Mastodon-compatible API for use with Mastodon clients.docs.hollo.social · 12 Oct 2026
Posting features: Hollo supports polls, media attachments, hashtags, mentions, FEP-044f quote posts, and Misskey-style emoji reactions.docs.hollo.social · 12 Oct 2026
Accounts: One instance can host multiple accounts, which users can switch between.docs.hollo.social · 12 Oct 2026
Security: Hollo supports passkeys, TOTP two-factor authentication, OAuth 2.0 with PKCE, and CSRF protection on cookie-authenticated routes.docs.hollo.social · 12 Oct 2026
Installation: The maker documents deployment through Railway, Docker, or manual installation from source.docs.hollo.social · 12 Oct 2026
Notable limitation: Hollo is designed for single-user instances and omits moderation tools intended for shared instances.docs.hollo.social · 12 Oct 2026