WRITE
WITHOUT
FRICTION.
Proser turns VS Code into a calm, capable studio for prose — a live WYSIWYG page, the proofreading and reference tools writers actually need, and one-click manuscript export. Everything works offline; AI is optional and can run locally.
FEATURES.
Everything a writer needs, scoped to Markdown so it never gets in the way of code.
Live Pretty editor
A live WYSIWYG page backed by your real .md file — book-width and centered, with inline formatting, spelling squiggles, and a one-tap toggle to raw Markdown.
Multi-language spell check
A real dictionary with compound-word smarts that skips code, URLs, and names. English is built in; seven more languages download once, then work offline.
Thesaurus in context
Right-click any word for synonyms or antonyms — offline WordNet, online Datamuse, or context-aware suggestions when AI is enabled.
Editor checks: tense, passive & continuity
Catch what drafts hide — tense drift, passive voice, and AI continuity scans for contradictions. Every finding has Go / Fix / Ignore.
Manuscript export
Export to DOCX or PDF in Standard Manuscript Format (Courier 12pt, double-spaced, 1″ margins) — a single file or your whole folder.
Optional local AI
Revise with AI on any selection using saved prompts. Choose OpenRouter (cloud) or Ollama (fully local & private) — your API key lives in the OS keychain.
Write on a live, book-width page
The Pretty editor is a true WYSIWYG view backed by your real Markdown file — edits, undo, and git diff all work as ever. Inline formatting and spelling squiggles included; flip to raw source any time.
Spell check that understands prose
A real dictionary with compound-word smarts skips code, URLs, names, and frontmatter. A dedicated sidebar lists every misspelling with one-click fixes — English plus seven more languages, offline.
Submit-ready in one click
Generate a DOCX or PDF in Standard Manuscript Format — Courier 12pt, double-spaced, 1″ margins — for a single file or your whole folder. Exactly what agents and editors expect.
Revise with AI, your way
Select any passage and revise it with reusable saved prompts — cloud via OpenRouter, or fully local with Ollama. Your words never leave your machine unless you choose.
The right word, in context
Right-click any word for synonyms or antonyms — offline WordNet, online Datamuse, or context-aware AI suggestions that read the sentence around it.
START WRITING
IN PROSER.
100% free forever · Private by default · MIT licensed