Your computer.
Your apps. Your AI.

Draft replies, work with documents, and update the apps you already use. Plexon is an AI assistant that runs on your computer.

Describe a routine once. Let it run every morning or when a new message arrives.

Download

Windows, macOS and Linux · Plans from $49 a month

Your chat history stays on your computer. Our server keeps no copy.

The Plexon app showing a workflow on the canvas: a new-email trigger, a step that reads the message, a step that pulls the mobile number out, a branch, and a WhatsApp reply.

A bundled workflow opened in the editor, one step at a time: the trigger that polls the inbox, the tool step that reads the email, the AI step and the fields it returns, the branch, the message it sends, and the notification at the end.

What happens in this clip

A bundled workflow opens in the editor.
The trigger at the top polls the inbox.
A tool step reads the email, spending no AI tokens.
An AI step pulls out named fields, and a branch decides what happens next.
A message step sends the reply, and a notification step tells you it went.

Let the routine run itself.

A workflow is a routine Plexon follows. Describe the steps in chat, then choose when it starts: every morning at seven, or when an email or WhatsApp message arrives. Keep Plexon running on your computer and it records each run while you're away.

Every weekday at nine, pull yesterday's orders from WooCommerce and message me the total on Telegram.

Plexon drafts four steps: start on schedule, read the orders, add them up, and send the total. Review the routine before you switch it on.

When a new lead lands in HubSpot, draft a reply in my voice and leave it for me to send.

The routine saves a draft in your inbox. You review the wording and send it yourself.

Build a workflow Follow results on a dashboard

The Global Intelligence board: an About this board card, a live world map of earthquakes and natural events, and gauges for space weather and air quality, with Min quake magnitude and City parameters at the top that every card reads. — A dashboard shows the results from the latest run.Dashboards

Choose a role for the work ahead.

A persona is a saved role with its own instructions, connected apps and routines.12 are built in, from Writer to Financial Analyst. Point to a role or focus it with your keyboard to preview its apps below. Open the role to see what it can do.

MarketerPlan campaigns, write the copy, prove what worked.12 specialists · 3 skills · 4 plugins WriterDraft, edit, and publish with a voice that stays yours.5 specialists · 4 plugins DietitianPlan meals, track nutrition, support clients.5 specialists · 5 plugins Financial AnalystBuild the model, value the company, defend the number.5 specialists · 1 skill · 4 plugins Product ManagerShip the right thing, in the right order.10 specialists · 4 plugins Startup FounderValidate the idea, raise the round, grow the company.9 specialists · 11 skills · 1 board · 3 workflows Personal ShopperFind it, compare it, and buy it for less.2 skills Stock TraderAnalyze the setup, manage the risk, keep the journal.5 specialists · 3 skills · 1 board · 10 workflows Greek LogisticsWork through Greek tax, bookkeeping, and logistics.3 specialists · 7 skills · 1 board · 4 workflows DesignerDesign interfaces people can actually use.10 specialists · 5 skills · 3 plugins Software DeveloperA full-stack engineering crew in one workspace.13 specialists · 9 skills · 7 plugins MirrorTalk things through and keep a journal of what matters.1 specialist · 4 skills

All 12 roles

Work across 82 apps you already use.

Draft an email in Gmail, update a Notion page, or send a Slack message. Connectors link Plexon to these apps using your own sign-in and permissions. WhatsApp, Stripe and 77 more are supported too.

Highlighted apps belong to the Marketer role. Preview another role above to see its apps.

All 82 connectors

Our server keeps nothing.

Plexon saves your chat history, settings and sign-ins on your computer. When you ask an online AI service for help, it receives your question and the content needed to answer. Our server passes the request along and keeps no copy of it or the reply.

How privacy works

Your accounts stay under your control.

Connected apps use your own sign-in and permissions. You can review and remove a connection in Plexon.

See what this browser can read about your computer

These readings describe this web page, not activity inside the Plexon app.

This machineyour computer

Processor coresnot reported by this browser

Memory the browser reportsnot reported by this browser

Requests this page sent to our relay0

Plexon runs on Windows, macOS and Linux.

Read by your browser, shown to you, sent nowhere. Nothing on this page calls our relay.

Make something you can share.

Describe an image, a song or a video in chat and save the finished file. Images are included on every plan, and so is Plexon Voice, which hears you and reads answers aloud. Premium adds video and music. Listen to a song and watch a clip made in Plexon below.

The prompt

Write me a song about a lighthouse keeper who never sees a ship. Sad folk.

The Keeper of the Empty Light

0:00 / 3:57

Download The Keeper of the Empty Light

Words, vocals, and arrangement all came out of that one line. The file saved to the working folder as the track appeared in the chat.

The prompt

Generate a 5 second video: a paper lantern rising over a quiet harbour at dusk, warm light on the water, boats at anchor [Pedestal up].

Paper Lantern Over Harbour. The brackets are the camera move. Plexon turned that line into a full shot description, and the clip was playing in the chat about half a minute later, saved next to the work.

Create images Make a video Create music Talk and listen

Keep the version you like.

Ask for a report or a page for your website. It lands on a board beside your chat, rendered live, with every version kept on your computer. Compare changes, put an earlier one back, or ask for three ideas side by side and choose one to develop.

The chat on the left with an Open canvas chip under a reply, and the same board on the right showing the desktop and mobile frames — The page the assistant just wrote, on the board beside the chat that asked for it.Design canvas

Work on the canvas

Find it without searching menus.

Press Ctrl+K to open the command palette, a search box for Plexon's tools, chats and settings. Type an app's name to connect it, find a past conversation, or describe the setting you need in your own words.

The Plexon command palette searching for instagram: three Meta connectors lead the results, each offering Install, followed by matching agents and a skill — Search for an app by name to find its connector.Command palette

Explore the command palette

Give your team a shared starting point.

Set up your team's roles, connected apps and skills, the instructions Plexon follows for a particular job. Share them in a private company marketplace where colleagues can install the setup. Your team can also share project boards and work together in a live session.

Choose the instructions and apps your team needs.
Publish the setup for your colleagues to install.
Revoke access when someone leaves; it takes effect within fifteen minutes.

For business

The Marketplace Browse tab: a grid of branded cards across every registered source, each with what it does, its tags and an Install button, narrowed by the kind, source and category pickers above it — A private marketplace, seen from inside the app.Company marketplace

For developers.

Parallel agents in isolated worktrees, a diff review queue, code intelligence from real language servers, spec-driven mode, and a one-pass import from Claude Code.

Developer tools Migrate from Claude Code jev, our Go client for TypeSafe Jev now runs inside Plexon

The Run in parallel picker: pick agents for one prompt and each runs in its own isolated git worktree, then you merge their diffs — Several agents at once, each in its own copy of the repo.Parallel agents

Plexon compared with ChatGPT and Claude
Capability	Plexon	ChatGPT	Claude
Where your conversations live	PlexonYour machine. Our server keeps nothing.	ChatGPTVendor cloud	ClaudeVendor cloud
Connectors that use your own accounts	Plexon82 branded, signed in locally	ChatGPTPlatform-brokered	ClaudeA directory, plus anything you add
Work that runs while you are away	PlexonOn a clock, on an event, and never sent twice	ChatGPTScheduled tasks	ClaudePartly

Every claim on the full comparison pages carries a source and a date, and each page opens with where the other product is better.

See all comparisons

Choose the plan that fits your work.

Both plans include Plexon's AI. You don't need a separate AI subscription to get started.

Pro

$49a month

or $132 every 3 months (save 10%)

AI chat and image creation included
All 12 roles
192 specialists and 150+ skills for different jobs
Works inside all 82 apps
Fast decisions with Jev included

Premium

$129a month

or $348 every 3 months (save 10%)

Everything in Pro, plus
Video, music and Plexon Voice High fidelity
Run AI on your own computer
Work with another person in Live Share
More fast decisions, on priority keys

Compare the plans

Before you install.

Does it work offline?

You can read saved chats and use the files, memory and dashboards on your computer without an internet connection. New answers usually need an online AI service. Premium also lets you run AI on your own computer for local answers. Tasks involving online apps still need a connection.

What computers does it run on?

Plexon runs on Windows, macOS and Linux, on Intel and ARM computers, including Apple Silicon Macs. It updates itself. The download page shows the version and requirements for each system.

Does it work with the apps I already use?

Plexon connects to 82 apps, including Gmail, Google Drive, Notion, Slack, WhatsApp, Shopify and Stripe. A connector links an app to Plexon using your account. Some apps ask you to sign in; others need a key or setup details from your account. Ask Plexon to find an email, update a spreadsheet or draft a message.

Can I use more than one role?

Yes. Keep as many personas, or saved roles, as you like. Switching roles changes the instructions, connected apps and routines Plexon uses. You can also combine several into one role or describe a new role for Plexon to draft.

Does Plexon keep a copy of my chats?

Your chat history is saved on your computer. When you use an online AI service, it receives your question and the content needed to answer. Our server passes that request along and keeps no copy of the question or reply. The AI service you choose has its own data policies.

Can I move my whole Plexon to a new computer?

Yes. In Settings, open Advanced and choose "Move to another machine" to save your setup and chats in an encrypted file. Keep its password and recovery code safe. On the new computer, choose "Bring my setup from another machine" at sign-in. Importing replaces the existing setup after you confirm, and keeps a restore point for a week. You will need to sign in and pair WhatsApp again. It works across Windows, macOS and Linux.

Put it on your computer.