Revise
An AI Editor for Documents
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
I started building this 10 months ago, largely using agentic coding tools. I've stayed very involved in the code base and architecture, and have never moved faster in my life as a dev.The word processor engine and rendering layer are all built from scratch - the only 3rd party library I used was the excellent Y.js for the CRDT stack.Would love some feedback!
HN · launched Mar 22, 2026 · 85 upvotes (top 11%) · 0 views
Niche: ai writing assistants · 186 launches, 8 in the last 7 days ▼ -64% · Explore this niche →
Category and tags
- Horizontal
- Content generation
- B2B
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 186 launches in ai writing assistants →
Could you build this?
No Building a custom word processor rendering and editing engine from scratch that faithfully supports complex layout, pagination, text measurement, and Word document specifications is a massive systems-level engineering undertaking.
What it would actually take: Requires an in-browser canvas or custom DOM layout engine handling typography, hyphenation, inline elements, selection models, and bidirectional text rendering. Building compatibility for Microsoft Word formats (.docx XML specs) alongside reliable pagination and diffing requires specialized software engineering in document engines similar to Google Docs or LibreOffice.
Discussion
20 comments analyzed.
Competitors mentioned: Google Docs, Lex, ProseMirror-based editors, Bank Street Writer
Concerns raised: Accessibility not prioritized, contenteditable gives browser features for free, IME/CJK input handling complexity, Requires subscription due to hosted servers and metered LLM billing, Potential for cheating/deceptive use cases, Privacy concerns with cloud-based tool vs local-first alternatives
Feature requests: Native app (Tauri) with local LLM endpoint support, Self-hosting capability, One-time license option instead of subscription, Better browser spellcheck integration, Improved writing-specific features vs Lex
Competitors
Other products that read as similar to this one : 1099 launches clear the similarity bar, closest 8 shown.
Attention rank: #110 of 1100 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 144 days after the earliest competitor.
- SubjectiveZero, an open-source agentic node editor for creative coding · hn · 2026-07-10 · 25 upvotes · similarity 0.49
- R3 · hn · 2026-07-10 · 5 upvotes · similarity 0.49
- Revise.js · hn · 2026-03-17 · 5 upvotes · similarity 0.48
- Remy, an AI agent that compiles annotated Markdown into full-stack apps · hn · 2026-04-13 · 5 upvotes · similarity 0.48
- vibe-writing-open-source · github · 2026-09-12 · 31 upvotes · similarity 0.47
- Huzzah · hn · 2026-08-20 · 384 upvotes · similarity 0.45
- awesome-code-as-x · github · 2026-09-13 · 61 upvotes · similarity 0.45
- agent-build-playbook · github · 2026-10-05 · 11 upvotes · similarity 0.44
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.