Opal Editor, free Obsidian alternative for markdown and site publishing
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A fully featured markdown editor and publisher. Free, open-source and browser-first (no backend required). Built with modern technologies like React, TypeScript, Shadcn/UI, and Vite. (thoughtfully crafted, not vibe coded)
HN · launched Jan 18, 2026 · 36 upvotes (top 26%) · 0 views
Niche: markdown editors and viewers · 158 launches, 13 in the last 7 days ▲ +86% · Explore this niche →
Category and tags
- Horizontal
- Content generation
- Prosumer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 158 launches in markdown editors and viewers →
Could you build this?
Yes Opal is a purely client-side Markdown editor and static page publisher built with React, TypeScript, and open-source parser libraries without any complex backend.
Discussion
6 comments analyzed.
Competitors mentioned: Obsidian, VS Code
Concerns raised: Currently less suitable than Obsidian or VS Code, Poor mobile/touch device support, Competing against established app with large plugin ecosystem, UX not clear for basic file creation workflow
Feature requests: Obsidian plugin compatibility, Git integration, Mobile/iPad support, Improved touch device interactions, Better mobile UI/UX
Competitors
Other products that read as similar to this one : 223 launches clear the similarity bar, closest 8 shown.
Attention rank: #81 of 224 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 60 days after the earliest competitor.
- HermesMarkdown · ph · 2026-11-11 · 3 upvotes · similarity 0.59
- OpenTex · ph · 2026-11-02 · 2 upvotes · similarity 0.51
- Open-source Markdown research tool written in Rust · hn · 2025-12-16 · 34 upvotes · similarity 0.51
- Sonder Markdown Editor · ph · 2026-10-15 · 2 upvotes · similarity 0.50
- Open-source .docx editor library for building document apps · hn · 2026-05-21 · 107 upvotes · similarity 0.50
- OpenKnowledge · hn · 2026-06-25 · 381 upvotes · similarity 0.49
- Writemark, a dependency free web component for inline Markdown editing · hn · 2026-07-25 · 53 upvotes · similarity 0.48
- Quartz · github · 2026-11-08 · 12 upvotes · similarity 0.46
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.