Local-first AI app platform

Make Your Own Private AI Apps with Built-in Runtime & Agent Support

Describe what you want in your own language → Get a complete, runnable app with UI, persistent local data, and native Agent Runtime. All running 100% locally on your machine. No cloud. No lock-in. You own it forever.

Describe the app. Code stays out of sight. Build, run, and tweak in one place. Keep local data local and private. Bring your own AI once, use it everywhere. AI-ready scaffolding, so you focus on the feature. Agent recipes for apps built around agents. Sandboxed build and run, with safety review gates.

A Local App Platform, Not Just an AI App Generator

Local App Runtime

Apps run locally in AppJuice's managed runtime, with their own UI and local data. Build, use, and tweak without a cloud deploy step.

AI & Agent Runtime Built In

Add direct AI actions or app-specific agents for chat, skills, tool calling, multi-step work, and generated files, powered by your configured providers and models.

Private by Default

Your app files and app data stay on your machine by default. Use local models or your own cloud AI keys only when you choose them.

From Idea to a Running Local App

Plain-language creation

Describe the app.

AppJuice turns it into an app while keeping code out of the normal path.

Build, run, tweak

One place for the whole loop.

Create the app, use it, then summon the builder again when you want a change.

Private and sandboxed

Built for your personal computer.

Apps run locally with approved files, scoped actions, sandboxed build/run paths, and review gates before Juicery sharing.

Shared AI setup

Configure providers once.

Built apps and the builder can use the same BYOK or local-model setup.

AI-ready scaffolding

Focus on the feature.

Platform tools and app scaffolding make AI features easier to add without hand-wiring provider glue.

Agent-Ready Apps with Built-in Runtime Support

Use agents when the app needs them.

Add app-owned agents for chat, skills, tool-calling workflows, approvals, persistent sessions, and generated files — all inside your local app.

1

Describe

Say what the app should do.

2

Build

Get the app structure and AI wiring.

3

Run in the Local Runtime

Your app opens with its own UI, local data, and AI/Agent capabilities when needed. No cloud deploy. No server setup.

4

Tweak or remix

Change it, share it, or start from someone else's.

Apps worth keeping.

Repeated private work should not live in copy-pasted prompts.

Use it. Tweak it. Keep it.

Using an AppJuice app

Use mode keeps the finished tool in front.

Open the app, work with its UI, approve the local context it needs, and keep the result as a normal tool on your machine.

Tweak mode brings the builder back into the loop.

Ask for changes, tweak behavior, and keep improving the same app instead of starting over in a new chat or separate project.

For private work that keeps coming back.

Pick by the thing you want at the end.

Use AppJuice when the thing you want to keep is the app itself.

Need ChatGPT / Claude Codex / Claude Code Replit / Bolt.new / Lovable OpenClaw / Hermes-style agents AppJuice
Best output Answer or conversation Codebase-centered agent work Hosted or deployable app/project Autonomous agent, gateway, memory, and skills Runnable local app + AppJuice Runtime
Non-technical app creation Great for asking; not app output Powerful, developer-facing Friendly app/site builders, usually project/deploy oriented Best for users comfortable configuring an agent stack No-code friendly by default
App shell, UI, and data Chat or canvas Codebase-centered; you review and ship changes Generated app/project, often hosted or deployable Chat/channel/dashboard surfaces, tools, skills, and config App shell, UI, local data, and runtime
Build, run, tweak loop Conversation loop Repo and terminal loop Builder plus hosted/deployed project Agent sessions, skills, gateway, and config Build, run, and tweak in one place
Private local data Attach or connect files Local access with developer controls Depends on project storage and integrations Self-hosted/local paths possible; memory and tools configurable App-local data, sessions, and artifacts
Personal-computer safety Low risk for chat-only work Developer reviews commands and code Usually runs in a hosted project Powerful, with more setup and operator responsibility Sandboxed build/run, approved access, and Juicery review gates
Provider or local model choice Mostly one product account Depends on the coding tool Often platform-managed Own-key and multi-provider paths, depending on setup BYOK once, shared by builder and apps
Direct AI actions inside the result Chat is the action surface Manual implementation Possible if the app includes it Agent tools and channel actions, not app-native actions Direct AI actions inside the app
Agent inside the result The chat is the product Possible, manual Possible, app-owned Agent is the main product surface Runtime Agent inside the app
Start fresh, remix, share Prompt or shared chat Repo or patch Project or hosted link Open-source agent stack, skills, and config Source plus recipe, Juicery-ready
Quick one-off private task Good for public or low-risk questions Usually too much setup Usually too much setup Good if your agent is already running One-shot app from Juicery when privacy, personalization, or provider choice matters

Choose AppJuice for private local apps.

Best when the result should be a tool you keep, run on your computer, tweak later, and connect to approved local files or AI providers.

Use chat for answers and quick thinking.

ChatGPT and Claude are better when you need a conversation, a draft, or a quick public/low-risk answer instead of a reusable app.

Use coding tools for developer repos.

Codex and Claude Code are powerful when the thing you want to keep is code in a repository and you are comfortable reviewing that work.

Use hosted builders for web projects.

Replit, Bolt.new, and Lovable are stronger when the destination is a hosted or deployable app/project rather than a local-first personal app.

Use OpenClaw / Hermes-style agents for always-on work.

OpenClaw, Hermes, and similar agent stacks fit users who want an autonomous assistant, gateway, memory, skills, and more setup control.

OpenClaw, Hermes, and similar personal agent stacks are strong choices when the thing you want to keep is an autonomous agent. AppJuice is different when the thing you want to keep is the app itself.

Private by default.

Secrets stay out of app code

Store API keys, tokens, and service secrets in AppJuice's encrypted Platform Vault. Apps request approved credentials through runtime paths instead of hard-coding them.

Sandboxed by default

Builds, runs, file access, and local actions go through AppJuice-controlled paths instead of open-ended machine access.

You choose when data leaves

Local data stays in AppJuice storage by default. Cloud AI receives only the request context you send.

Shared apps get reviewed

Shared apps exclude your private data and go through Juicery validation, rule scanning, and AI review.

AppJuice is not just an AI builder. It's a local AI app platform for private apps you can keep, run, and improve over time.

Quick answers.

What is AppJuice?

A local AI app platform for creating and running private apps on your computer, with a built-in local runtime.

Do I need programming knowledge?

No. Describe what you want; AppJuice keeps code out of sight and handles the app structure, runtime, and AI wiring. Builder messages and progress are written in plain language, not raw agent logs.

Is AppJuice a cloud app builder?

No. AppJuice builds and runs apps locally; no cloud deployment step is required.

Can apps include AI or agents?

Yes. Apps can include direct AI actions or app-specific agents for chat, skills, tool calling, and multi-step work.

What can an app's AI access?

Only the files, folders, tools, and actions you approve through AppJuice-controlled runtime paths.

What data leaves my machine?

Your app files and local data stay on your machine by default. Cloud AI providers receive request context only when you choose a cloud model for that action.

Do shared apps include my private data?

No. Shared apps are app packages/templates, not your runtime data, files, sessions, or provider keys.

Can I bring my own AI provider?

Yes. Configure your own cloud providers, models, or local models once, then use them across the builder and apps.

Start with the desktop app.

macOS is available now. Windows and Linux are coming later.

macOS desktop
Available now

The main AppJuice experience for Mac. Download the native desktop app bundle, open the DMG, and drag AppJuice into Applications.

These are unsigned preview DMGs built by GitHub Actions. Notarization is next.
Linux Desktop
Coming later

A native Linux desktop experience is on the roadmap. The public download will arrive once packaging and updates feel solid for normal users.

For now, the public install path is the macOS desktop preview.
Home server / remote access
Coming later

A later release will let you install AppJuice on a home server, NAS, or always-on mini-PC, then connect to it from other computers through a browser or from the local host app by entering that server address.

This remote-use path is planned, but it is not the current public install flow yet.
Windows
Coming later

Windows desktop packaging is in progress. We won't put up a public download until the installer and update path feel solid for normal users.

Listed here on purpose — the platform target is real, just not shipped yet.

What to expect on first install

The macOS build is a public preview. Download it from this page, open the DMG, and move AppJuice into Applications. Because these preview DMGs are not notarized yet, macOS may show an unidentified-developer confirmation the first time you open the app.

  • Use the Apple Silicon download for M-series Macs and the Intel download for older Intel Macs.
  • Juicery apps install through AppJuice after login, so downloaded marketplace packages still pass through AppJuice install checks.
  • Notarized macOS builds are the next trust milestone before the preview label is removed.

Everyone should be able to make their own tools.

The old path — idea, learn to code, write code, compile, host, share — locks out 99% of people from building the tools that would actually help them.

AppJuice rewrites it.

Have an idea → say it → use it → share it.

Private, local, yours.