AI writing workspace for documents

An easier way to write documents with AI

Describe what you want to write, add your constraints, and WriterOS generates a draft you can keep refining. Great for reports, essays, PRDs, technical specs, press releases, and other written work.

Start Writing for Free
No credit card Free to start
3 Versions

Chat helps you think.
WriterOS helps you finish the document.

Use WriterOS when you need more than a one-off answer. It helps you turn a brief, rough notes, or a research task into a document you can refine, version, and reuse over time.

Draft from a brief

Start with an idea, notes, bullet points, or a document brief. WriterOS turns them into a structured first draft.

Write with your preferences

Set tone, length, and language, or let WriterOS infer them from the task.

Refine without losing previous work

Prompt changes like "make it shorter" or "sound more formal" and keep every version saved.

Research while you write

Search the web, review sources, and use them to draft reports and other research-backed documents.

How WriterOS works
from idea to finished draft

A simple workflow that handles the hard parts — structure, tone, research, and revision.

01

Start with what you have

Paste notes, a rough brief, bullet points, or upload a source document.

02

Set the direction

Choose the tone, length, and language you want, or let WriterOS infer them from the task.

03

Refine in versions

Ask for changes like "tighten this up" or "make this more technical" and keep each draft version saved.

04

Finish with context

Edit the draft, pull from earlier documents, and build on past work instead of starting from scratch each time.

Style Guide
ToneProfessional
LanguageUK English
LengthMedium (400–600 words)

Refine prompt

Make the opening paragraph more direct

Version history

v3 — Refined opening
v2 — Shorter cut
v1 — Initial draft

For the documents people actually need to deliver

WriterOS helps you write structured, professional documents across work, school, research, and communication. Start with a brief, refine the draft, and keep building on previous work over time.

PR & Comms

Press releases, media pitches, founder bios, company boilerplate, and stakeholder updates.

Policy

Essays, abstracts, concept notes, grant letters, and other formal written work.

Academic

Research summaries, deep-dive reports, literature reviews, and source-backed write-ups.

Legal

MOUs and formal agreements — plain-English legal language with correct clause structure.

Business

Proposals, memos, strategy docs, and executive-ready writing.

Simple pricing for people who write regularly

Start free, then upgrade when you need more documents, research features, and stronger document memory.

Free

For trying WriterOS on simple writing tasks.

$0
Try Free
3 documents
Brief input (text only)
Tone & language controls
3 refinement prompts per doc

Essentials

For students, founders, and occasional professional writing.

$4/mo
Get Essentials
15 document revisions
Upload source documents
All style guide controls
Refine drafts as many times as needed
Keep version history
Most Popular

Premium

For people who write and ship documents regularly.

$19/mo
Get Premium
100 document revisions
Upload source documents
All style guide controls
Refine drafts as many times as needed
Keep version history
Better support for longer, more complex writing
Access to research workflows
Priority generation

Common questions about WriterOS

Everything you need to know about WriterOS.

WriterOS takes your brief — a brain dump, bullet points, or a PDF — and generates a structured, polished draft. You set the tone, language, and target length before generating. If the draft isn't right, you refine it with a follow-up prompt and regenerate. Every version is saved so you can always go back.

WriterOS works well for professional documents across PR & communications (press releases, media pitches, founder bios), policy writing (concept notes, grant proposals, sponsorship letters), academic writing (abstracts, literature reviews, methods sections), legal documents (MOUs), and business writing (proposals, boilerplates).

You can type or paste your brief directly into the text area — bullet points, rough notes, or a full paragraph all work. On paid plans you can also upload a PDF and WriterOS will extract the relevant content from it.

Before generating, you choose a tone (e.g. Formal, Friendly, Executive, Academic), a language variant (UK English or US English), and a target length (Short, Medium, or Long). The generated draft follows these settings.

Type a refinement prompt — "make it shorter", "use a stronger opening", "remove the second paragraph" — and hit regenerate. Your original draft is saved as a version so you can always compare or restore it.

WriterOS generates clean, well-structured drafts from your brief. It does not run a separate grammar or spell-check pass — you can polish the final text in the built-in rich text editor before copying it out.

You can copy the text from the editor at any time. Dedicated export formats (DOCX, PDF) are on the roadmap but are not available yet.

No. WriterOS is built for creating complete documents. You start with a brief or idea, generate a draft, refine it in versions, and reuse context from previous work over time.

WriterOS is designed for structured written work like reports, essays, PRDs, technical specs, proposals, press releases, and other documents that need more than a one-off answer.

Yes, WriterOS can search the web and work from source material to help produce research-backed drafts.

Yes. WriterOS can use long-term document memory to reference earlier work and adapt to your writing style over time.

Yes, you can generate visuals inline when they help communicate the content better.