Portainer Templates

Campfire - 37signals' free, open-source group chat: rooms, direct messages, file sharing, full-text search, @mentions, sounds, and Web Push. It was the first ONCE app (a one-time paid product) and is now MIT-licensed and free.

Chatwoot - open-source customer support: shared team inbox, website live-chat widget, email and social channels, help center, and automations. This template runs the community-edition image (v4-ce, pure MIT - no enterprise code).

Documenso - the open-source DocuSign alternative: signing workflows, templates, teams, and an API, with real PKCS#12 document sealing. One app container + a managed Postgres; no volumes (the signing cert rides env as base64).

DocuSeal - open-source document signing: a WYSIWYG field builder (12 field types), multiple submitters, automatic PDF eSignatures with verification, API and webhooks. The signing core is fully functional in the free AGPL edition.

Mattermost - open-source team chat: channels, threads, DMs, voice calls, slash commands, integrations, and plugins. Team Edition image on a managed Postgres - it listens on :5000 directly, so no proxy.

Odoo Community 18 - the open-source business suite: CRM, sales, inventory, accounting, projects, manufacturing, website, and ecommerce, with a vast app store. LGPL-3 Community edition on a managed Postgres.

Penpot - the open-source design and prototyping platform (the Figma alternative): SVG-native, web-based, with real design-to-dev handoff. MPL-2.0. Frontend + backend + exporter on a managed Postgres and a noeviction Valkey.

Rocket.Chat - the open-source team communication platform: channels, DMs, threads, voice/video, an apps marketplace, and omnichannel (livechat/email/social). MIT core. The app is stateless - all state lives in MongoDB.

Shlink - a self-hosted URL shortener: short links on your own domain with a full REST API, QR codes, rich visit analytics (with optional GeoIP), tags, device-based redirect rules, and link expiration.

Twenty - the open-source CRM rethought for this decade: a modern data model (any object, custom fields), pipelines, notes, tasks, email sync, and workflows.

Typebot - the open-source conversational form builder: drag-and-drop bot flows that outconvert static forms, embeds for any site, and results analytics. Two stateless apps (builder + viewer) on one managed Postgres.