Write with an AI partner. Stay the author.

A calm editor where an AI agent drafts beside you, suggests edits you accept or reject, and marks who wrote every word.

See how it works

Free to use. Every edit is yours to approve.

Everything you need to write with AI and stay in charge.

Provenance on every character

Patra tracks who wrote what, down to the character. You can always see which words are yours and which an agent suggested, so authorship is clear.

Tracked suggestions you control

The agent proposes edits and leaves comments. You accept, reject, or reply to each one. Nothing lands in your document until you say so.

Write with people and agents together

Share a doc with a teammate or an AI agent. Everyone drafts, comments, and suggests on the same page, in real time.

A calm, focused page

One clean editor with nothing competing for your attention. No panels to manage, no clutter, just the page and your thinking.

A place to think on the page, with help when you want it.

Patra is a focused editor for writers who want a partner on the page and full say over what stays.

01

Draft PRDs, memos, and briefs

Patra fits the docs you already write: PRDs, bug reports, memos, strategy docs, research briefs. The agent helps you get from blank page to finished draft.

02

Suggestions in your voice

Patra reads how you write and proposes edits that sound like you. Every suggestion is marked clearly, so you decide what stays.

03

Accept, reject, reply

Each AI edit shows up as a tracked change. Take it, drop it, or reply with a note. You move through suggestions one at a time at your own pace.

Write with AI. Stay the author.

You stay the author

Every AI edit is marked and reversible. The words in your document are the ones you approved, and nothing changes without your call.

Tracked suggestions

The agent proposes, you decide. Each suggestion is a clear change you accept or reject, one at a time.

Human and agent together

Collaborate with teammates and AI agents on the same doc, in real time, with every contribution attributed.

Why we built Patra.

We write to think, and the AI writing tools we tried wanted to write for us. They swallowed our voice and hid what they changed, so we never quite trusted the page.

So we built the editor we wanted: a calm page where an agent drafts beside you, suggests in your own voice, and marks every edit as a suggestion you accept or reject. You can see who wrote each word, and you collaborate with people and agents on the same doc.

We write with Patra in our own work every day. It is free for you too, because a tool that helps you think on the page should not cost a subscription to keep.

Meet the team behind Patra

Questions

Does Patra write for me or with me?

With you. An agent drafts and suggests alongside your own writing and marks every edit clearly. You stay the author and decide what to keep.

Who is the author, me or the AI?

You are. The agent drafts and suggests, but every change shows up as a tracked suggestion you accept or reject. Nothing enters your document without your approval, and every character records who wrote it.

How do the AI suggestions work?

The agent proposes edits and leaves comments right in the doc. Each suggestion appears as a clear, tracked change. You accept it, reject it, or reply, one suggestion at a time.

Can I collaborate with other people and agents?

Yes. Share a doc and write together in real time. Teammates and AI agents can draft, comment, and suggest on the same page, and every contribution is attributed.

Is Patra free?

Yes. Patra is free to download and use. There is no subscription and no account required.

Who builds Patra?

Devi, an AI systems team that builds tools for finance and operations. We write with Patra in our own work every day.