I need a collaborative design tool that works offline and does not require a subscription.

Finding a tool that checks all three boxes—collaborative, works offline , and free with no subscription —is tricky because real-time collaboration inherently requires a network connection or a server to sync changes between people. However, depending on whether you mean "collaborative by passing files/local server" or "collaborative via an infinite whiteboard," a few open-source, zero-cost options fit your needs:

• Penpot — The premier open-source, web-based design and prototyping platform (the primary open alternative to Figma). It is completely free with no subscriptions. While it is built for real-time collaboration online, you can self-host it locally via Docker on your own machine or local network. If you run it locally, it functions entirely offline for your team on a local network or single device without touching any commercial cloud or requiring a paid tier.
• Excalidraw — A virtual collaborative whiteboarding tool with a hand-drawn look. It is open-source, free, and uses local-first browser storage, meaning it loads and lets you sketch locally even if you lose your internet connection. For collaboration, you can either use its free end-to-end encrypted room sharing when online, or self-host the collaboration backend locally so your team can collaborate over a local network without subscriptions or external data tracking.
• Graphite — A free, open-source 2D vector graphics and procedural design editor. It currently operates as an offline-capable web app (with native desktop wrappers in progress) and is built to be completely free. While its live multi-user collaborative editing features are still rolling out in its roadmap, it's an exceptional choice if your definition of "collaboration" leans toward local, open, node-based vector creation without vendor lock-in.

To help narrow down the best setup, tell me:

• Are you looking to do UI/UX vector design (like Figma/Sketch) or diagramming/whiteboarding (like Miro/Miro alternatives)?
• Does "collaborative" mean multiple people editing at the exact same time , or just passing files/local hosting?

If by “collaborative” you mean multiple people editing together, while also being offline-first and subscription-free, the options are a bit unusual because collaboration normally requires some kind of sync mechanism.

Best fits

• Penpot — probably the closest Figma alternative. It’s open-source, supports real-time collaboration, and can be self-hosted so you don't have to pay a recurring SaaS subscription. The self-hosted Professional edition is listed as free with unlimited users, teams, and files.
• tldraw Offline — excellent if you want an infinite canvas, diagrams, wireframes, or whiteboarding rather than a full Figma-style UI-design environment. The desktop app requires no account or server, works offline, and saves portable .tldraw files. It now also has LAN multiplayer, allowing collaboration over a local network without relying on the internet.

The important distinction

If you need “everyone can edit simultaneously while the internet is completely unavailable,” I'd look at tldraw offline's LAN collaboration. If you need professional UI/UX design, components, prototypes, design systems, and developer handoff, I'd look at Penpot self-hosted—but its collaborative server needs to be accessible to the team, such as on a local/on-premise network.

If you tell me whether you're designing UI/UX, graphics, diagrams/whiteboards, or something like CAD, I can narrow it down to 2–3 genuinely suitable tools.

Finding a tool that is truly collaborative, works completely offline , and has no subscription is tricky because real-time collaboration inherently requires a network connection (or a local server setup). However, depending on whether you mean "collaborative in the same room via a local network" or "works offline locally and syncs peer-to-weight later," a few open-source and local-first projects fit parts or all of this need.

Here are the best options available:

• AFFiNE
  • What it is: An open-source, local-first alternative combining Notion-style documents and Miro-style infinite canvas whiteboards/diagrams.
  • How it fits your needs: It is built with a local-first architecture. The desktop app stores everything directly on your machine so you can design, write, and plan 100% offline. It supports local network peer-to-peer sync or optional cloud sync when you choose. It is entirely free and open-source with no mandatory subscription.
  • Check it out: Download or view the source via AFFiNE Download.
• Penpot (Self-Hosted)
  • What it is: The first open-source, web-based design and prototyping tool built with web standards (SVG-native), heavily serving as an open alternative to Figma.
  • How it fits your needs: Because it is open source, you can self-host it locally on a private server or a local machine via Docker. If your collaborators are on the same local network (like an office Wi-Fi or local router), you can collaborate in real-time completely offline without any internet connection or third-party subscription.
  • Check it out: Learn more about running it yourself at Penpot.
• Penpot / Excalidraw + Local File Sharing (Async)
  • What it is: If strict "real-time simultaneous cursor" collaboration isn't a strict requirement, tools like Excalidraw or Penpot allow you to export and share native project files locally.
  • How it fits your needs: You work completely offline as a standalone desktop or local app, save the file, and pass it around (via local network, USB, or Git) to merge edits asynchronously. Zero subscriptions, zero forced cloud dependencies.

To help narrow down the best setup, tell me:

• Do you need real-time simultaneous editing (like Figma/Miro) or passing files back and forth?
• Are your collaborators in the same physical room/local network , or working completely independently?

If offline + collaborative + no subscription are all requirements, I’d recommend Penpot.

• Free and open source: The self-hosted version is free, with unlimited users, teams, and files.
• Collaborative: It supports real-time multiplayer editing, comments, shared libraries, and team collaboration.
• Offline/private: You can run Penpot on your own server or local infrastructure, so your design environment doesn't depend on Penpot's cloud subscription.
• Good Figma alternative: It supports UI design, prototypes, components, design tokens, CSS Grid/Flex layouts, and developer inspection.

One caveat: "offline" and "real-time collaboration" are inherently in tension. If multiple people need to edit simultaneously, they'll need access to the same local/self-hosted Penpot server (which could be on your LAN). If everyone is completely disconnected, you can work locally, but you won't get live collaboration until the environments can communicate.

If you tell me whether you're on Windows, Mac, or Linux, I can recommend the simplest setup for a completely free, offline/local collaborative workflow.

Finding a design tool that is truly collaborative, works entirely offline, and has zero subscription fees is a bit of a paradox, because "collaboration" inherently requires sharing data across devices.

However, depending on what you mean by "collaborative" (real-time multiplayer vs. peer-to-peer/local sync), a few open-source and self-hosted options fit parts or all of your criteria:

1. Penpot (Self-Hosted)
   • The Vibe: The ultimate open-source, web-based UI/UX design and prototyping tool (a true free alternative to Figma).
   • Offline/Subscription: It is 100% free and open-source. You can run it locally on your own machine or local server via Docker (so it requires no subscription and can operate on a local network without hitting the commercial cloud).
   • Collaboration: If you self-host it on a local server or home network (via Coolify or Docker), multiple people on the same local Wi-Fi/LAN can collaborate in real-time without an active internet connection to the outside world.
   • Learn more: Check out the Penpot Official Website.
2. Penpot / Local Desktop or Git-backed workflows
   • If you need individual offline use that syncs up later, traditional vector tools like Inkscape are completely free and offline, but lack native real-time collaboration.
   • If you are working with technical or markdown/vector layouts, developer-focused local-first tools (like Git-backed canvas workflows) allow peer-to-nial syncing over local networks, though they lack a slick "Figma-style" multiplayer cursor out of the box unless self-hosted.

To help narrow down the best setup for you, let me know:

• Do you mean real-time multiplayer collaboration (like seeing cursors move at the same time), or just sharing/passing files back and forth?
• Are you comfortable running a simple local server / Docker container on one of your machines, or do you need a traditional desktop app (.exe/.app) that connects peer-to-peer?

If you need all three—offline, collaborative, and no subscription—I'd look at these:

• offline.tldraw.com — best for whiteboarding/brainstorming. It’s free, has no account or server requirement, works offline, and saves portable .tldraw files. As of August 2026, it also supports LAN multiplayer, so people on the same local network can collaborate without relying on the internet.
• Penpot — best for serious UI/UX design. It’s open source, supports real-time collaboration, and can be self-hosted rather than requiring a subscription. However, it is primarily a web/server application, so it's less suited to a completely disconnected/offline workflow.
• github.com — best if you're willing to build/customize. It supports self-hosted real-time collaboration, so you could create a completely private design tool running on your own LAN/server.

My pick: If by “design tool” you mean canvas, diagrams, wireframes, brainstorming, and visual collaboration, start with tldraw offline. If you mean Figma-style UI design with components, design systems, and prototypes, choose Penpot, ideally self-hosted.

One important distinction: true simultaneous collaboration while completely offline requires the collaborators to be connected somehow (e.g. the same LAN); no internet connection doesn't mean no network connection. tldraw's new LAN multiplayer approach is specifically designed for this.

If you need collaboration + offline use + no subscription, I’d look at these:

• openpencil.dev — best match. It’s open source, free/local, requires no account or server, and has a desktop app for macOS, Windows, and Linux. It also supports real-time peer-to-peer collaboration via WebRTC, so collaborators can edit together without a central server.
• penpot.app — best mature Figma alternative. It’s open source and supports real-time collaboration, design systems, prototyping, and developer handoff. You can self-host it for free with unlimited users/files, but it is primarily a web application and requires running a server, so it’s less convenient if you mean completely offline on individual computers.

My recommendation

Try OpenPencil first if “works with no internet” is a hard requirement. It most closely matches all three requirements: offline + collaborative + no subscription.

If you tell me whether you mean UI/UX design (Figma-like), graphic design (Illustrator-like), whiteboarding, or CAD/product design, I can narrow it down to the best 2–3 options.

Finding a tool that combines offline access, collaboration , and no subscription is a unique challenge because collaboration usually requires cloud servers. However, you can achieve this by using locally hosted open-source tools or one-time purchase software paired with local network sharing or version control.

Here are the best options that fit your exact criteria:

1. Penpot (Open-Source Desktop App)

Penpot is the closest open-source, subscription-free alternative to Figma.

• How it works offline: You can run Penpot locally on your machine via Docker or download community-built desktop versions.
• How to collaborate: To collaborate without a cloud subscription, you can host Penpot on a local office server or a private network (LAN). Your team connects to your local server to design together.
• Pricing: Completely free and open-source.

2. Inkscape or GIMP + Git (Vector & Graphic Design)

If you want standard graphic design software without subscriptions, Inkscape (for vector design) and GIMP (for photo editing) are excellent choices.

• How it works offline: Both are 100% offline desktop applications.
• How to collaborate: Because they save files in standard open formats (SVG and XCF), you can collaborate using a local version control system like Git. Team members can work offline, push their design changes to a shared local network folder, and merge edits.
• Pricing: Free forever.

3. Affinity Designer 2 (Professional Vector Design)

If you prefer a highly polished, professional ecosystem like Adobe Illustrator but hate subscriptions, Affinity Designer is the gold standard.

• How it works offline: It is a fully native desktop app that requires no internet connection to run.
• How to collaborate: It does not support live, real-time cursor tracking offline. Instead, collaboration is file-based. You save your files to a shared local network drive (NAS) or an offline server where team members can open and edit them sequentially.
• Pricing: One-time purchase (perpetual license) with no recurring fees.

4. Draw.io / Diagrams.net (Whiteboarding & Wireframing)

If your design needs lean toward wireframing, user flows, or architecture diagrams, Draw.io is the perfect fit.

• How it works offline: They offer a dedicated desktop application that runs completely without internet access.
• How to collaborate: You can save files directly to a shared local network folder. The tool detects when a file has been modified by another user and prompts you to merge the changes.
• Pricing: Free and open-source.

Summary Comparison

To help me narrow this down, what specific type of design work (e.g., UI/UX, vector art, photo editing, wireframing) are you doing? I can then guide you on how to set up the ideal offline collaboration workflow for that tool.

If you need collaboration + offline use + no subscription, I’d look at these:

1. OpenPencil — best match

• Free and open source.
• Has a desktop app that works locally with no internet or account.
• Supports real-time peer-to-peer collaboration via WebRTC, without a central server.
• Opens and saves Figma .fig files.
• No subscription required.

2. Penpot — best for a mature Figma alternative

• Open source with strong UI/UX design, prototyping, components, and multiplayer collaboration.
• You can self-host it, avoiding a subscription and keeping your data on infrastructure you control. The self-hosted version is free.
• The catch: collaboration normally requires your self-hosted server to be reachable; it's not as straightforwardly offline/P2P as OpenPencil.

3. Offline Whiteboard — best if you mean brainstorming rather than UI design

• Free, open source, single HTML file.
• Works completely offline with no account or server.
• Has sticky notes, shapes, arrows, and an infinite-canvas style workflow.
• It doesn't provide the same real-time multi-user collaboration as OpenPencil.

My pick

Try OpenPencil first. It comes closest to your exact requirements: design tool + offline/local + collaborative + free + no subscription + no server required for collaboration. Its collaboration is directly peer-to-peer rather than relying on a paid cloud service.

If you tell me whether you're designing UI/UX, graphics/illustrations, diagrams, or physical products, I can narrow this down to the best 2–3 options.

Finding a tool that checks all three of your boxes—collaborative, works offline (local/self-hosted) , and free with no subscription —is a bit of a unicorn hunt because true real-time collaboration inherently requires a network connection to sync changes between users.

However, depending on what "collaborative" means for your workflow (async file sharing vs. live multi-cursor editing), there are open-source and self-hostable options that fit the bill:

• • Penpot: The Open-Source Design Tool (Best for Self-Hosting)
  • The Vibe: An open-source, web-based team design and prototyping platform built as a free alternative to Figma.
  • Subscription: 100% free and open-source. No subscriptions or paywalls.
  • Offline/Collaboration: Penpot is designed to be self-hosted (via Docker). If you run a local instance on your own hardware or local network (like a local home server or office intranet), your team can collaborate completely offline without relying on any external cloud or subscription service.
  • You can check it out or grab the setup guides at the official Penpot Website.
• • Local-First / Peer-to-Peer Approaches (Best for True Air-Gapped Collaboration)
  • If you need something that doesn’t require setting up a local server, traditional local vector editors like Inkscape are free, open-source, and work entirely offline, but they lack native real-time collaboration. Teams usually achieve "collaboration" asynchronously by passing files through a local version control system like Git.
  • While Git is built for code, designers frequently use it with local repositories to track changes across a team without a paid cloud subscription.

If you can share how many people need to collaborate and whether you have a local server/NAS available to host a tool like Penpot, I can help you figure out the best deployment method.