Free & open source · macOS

Write once.
Publish everywhere.

GhostPilot adapts your draft for LinkedIn, X, and Instagram using your own AI keys. Runs entirely on your Mac — no subscriptions, no cloud, no data leaving your machine.

Download for macOS View on GitHub

macOS 13+ · Free forever · Your keys, your data

Composer

Write once — AI adapts for every platform

● LinkedIn

● X

● Instagram

I spent 6 months building the wrong thing. Here's what I learned about validating ideas before writing a single line of code…

Generate Variants

I spent 6 months building the wrong thing.

Three things became clear: talking to 5 real users beats 50 hypothetical ones. A landing page tells you more than a prototype…

X · Thread

spent 6 months building the wrong thing 🧵
here's what i learned about validation the hard way:

Features

Everything you need.
Nothing you don't.

Built for founders, creators, and indie hackers who want to publish consistently without giving up control.

✍️

Write once, publish everywhere

Draft in plain text. GhostPilot rewrites it natively for LinkedIn's long-form, X's 280-char limit, and Instagram's caption style — all in one click.

🔑

Bring your own AI key

Use OpenAI, Anthropic, Groq, OpenRouter, or a local Ollama model. Your keys are stored in the macOS Keychain — never uploaded anywhere.

🗓️

Visual content calendar

Schedule posts across platforms from a single calendar view. A background worker dispatches them at exactly the right time.

🎭

Personas & voice matching

Create multiple personas with different bios, content pillars, and style hints. AI learns your voice and keeps variants on-brand.

🎯

OKR-style goals

Set a north-star outcome and let AI decompose it into a weekly posting plan with measurable key results.

📈

Trend radar

Pulls trending topics from Hacker News and Reddit, scores them for relevance and novelty, and lets you draft directly from a trend card.

💰

AI cost tracking

Every LLM call is logged with token counts and estimated cost. Set a monthly spend cap so you never get surprised.

🔒

Full audit log

Every action — OAuth flows, key additions, post approvals, publish attempts — is recorded in an append-only local audit log.

🏠

100% local-first

SQLite database on your machine. No account required. No telemetry. Works offline for drafting and scheduling.

How it works

From draft to published
in four steps.

Connect your accounts

OAuth flows open in your browser. Tokens are stored in the macOS Keychain — GhostPilot never sees your password and tokens never leave your machine.

Add an AI provider key

Paste your OpenAI, Anthropic, Groq, or OpenRouter key in Settings. Or point it at a local Ollama instance — no key needed.

Write your draft & generate variants

Type your raw idea in the Composer. Hit Generate — AI produces platform-native variants for each selected network simultaneously.

Approve, schedule, done

Review each variant, pick a date and time, and confirm. A background worker thread publishes at the scheduled moment — even if the window is hidden.

Supported platforms

X (Twitter)

Instagram

Privacy & Security

Your data stays
on your machine.

GhostPilot was designed from day one to never require a server, an account, or trust in a third party.

🔐 OS Keychain storage

OAuth tokens and API keys are stored exclusively in the macOS Keychain. They are never written to the database or sent to any server.

🗄️ Local SQLite database

All posts, personas, goals, and analytics live in a single SQLite file on your Mac. You own it, you can back it up, you can delete it.

🚫 No telemetry

Zero analytics, zero crash reporting, zero usage tracking. The app makes no outbound requests except to the platforms you explicitly connect.

🔓 Open source

Every line of code is on GitHub. Audit it, fork it, build on it. No hidden behaviour, no obfuscated binaries.

📋 Append-only audit log

Every sensitive action is recorded locally in an immutable audit log. You can query it any time from the app.

💸 BYOK — no markup

AI calls go directly from your machine to the provider. You pay the provider's rate — GhostPilot takes no cut and sees no content.

Write once.Publish everywhere.

Everything you need.Nothing you don't.

From draft to publishedin four steps.

Your data stayson your machine.

Ready to ship your content?

Write once.
Publish everywhere.

Everything you need.
Nothing you don't.

From draft to published
in four steps.

Your data stays
on your machine.