Local-first macOS writing refinement

HUMR helps your writingsound natural and publishable.

A premium refinement layer for professionals, founders, engineers, technical writers, and thoughtful non-native English writers. Not a chatbot. Not a word processor.

HUMR workspace interface preview in light mode

What HUMR is

A refinement workspace built for real professional writing.

HUMR is a local-first refinement workspace for public-facing writing. It helps you improve tone, clarity, and readability while keeping authorship and review in your hands. It is not an AI chat assistant, not an AI detector bypass tool, and not a full Microsoft Word or Pages replacement.

Why it exists

Professional writers need refinement, not noisy AI workflows.

Important writing often sounds flat or robotic after generic AI edits.

Most tools force chat workflows when all you need is precise refinement.

Writers lose trust when changes are opaque or hard to verify.

Privacy-minded teams need provider control without subscriptions or lock-in.

Core features

Designed for trust, review, and control.

Humanise selected text

Refine only what you highlight so your own voice and intent stay in control.

Review before applying

Inspect changes first, then accept or reject with a deliberate, editor-style workflow.

Diff-first trust

Every refinement is transparent. Nothing is silently rewritten in the background.

Local-first workspace

Drafts, preferences, and optional history stay on your Mac by default.

Bring your own provider

Use your own OpenAI or Anthropic key. HUMR does not proxy provider calls.

Export-ready flow

Move finished writing into your publishing workflow with RTF, PDF, or Markdown export.

How it works

A concise workflow that keeps you in charge.

Step 1

Write

Start from your own draft in a focused macOS workspace.

Step 2

Refine

Select text and run Humanise or Proofread with tone controls.

Step 3

Compare

Review changes in diff view before committing anything.

Step 4

Apply and export

Apply accepted edits and export to the format you need.

Trust and privacy

Privacy-first by architecture, not marketing copy.

  • No analytics, tracking SDKs, or hidden telemetry.
  • No HUMR account required for core writing workflows.
  • Provider requests go directly from your Mac using your own key.
  • API keys are stored in macOS Keychain.

macOS-native and local-first

Built as a focused refinement layer, not a chat UI.

  • Selection-based refinement supports precise editing.
  • Diff review keeps every change visible before apply.
  • Document workspace supports practical editing and export.
  • One-time purchase direction with no subscription lock-in.

Get started

Ship writing you can stand behind.

HUMR is built for the final mile of professional writing: refining your own draft until it sounds natural, authored, and ready to publish.