Best Online Markdown Preview — ToolStack vs Dillinger vs StackEdit
Previewing Markdown in real time is essential for writing documentation, READMEs, and blog posts. Dillinger and StackEdit are well-known options, but ToolStack Markdown Preview offers a faster, lighter experience. Here is how the three compare.
Feature Comparison
| Feature | ToolStack | Dillinger | StackEdit |
|---|---|---|---|
| Live preview | ✓ | ✓ | ✓ |
| Split pane view | ✓ | ✓ | ✓ |
| Syntax highlighting | ✓ | ✓ | ✓ |
| GitHub Flavored Markdown | ✓ | ✓ | ✓ |
| File upload | ✓ | ✓ | — |
| Export to HTML | ✓ | ✓ | ✓ |
| Dark mode | ✓ | ✓ | — |
| Client-side only | ✓ | — | — |
| No ads | ✓ | — | ✓ |
| Mobile responsive | ✓ | — | — |
Privacy
ToolStack processes all Markdown rendering client-side — your content never leaves your browser. Dillinger connects to cloud services (GitHub, Dropbox) and sends data to external APIs. StackEdit stores data in your browser but uses Google Analytics and may sync to cloud providers. For sensitive or confidential documents, ToolStack is the most private option.
Performance
ToolStack renders Markdown instantly because it runs locally with no external dependencies. Dillinger and StackEdit load heavier application bundles and may require network requests for features like cloud sync or syntax highlighting. ToolStack's lightweight approach means faster page loads and smoother typing, especially on slower connections.
Ease of Use
Dillinger and StackEdit are full-featured Markdown editors with extensive options but complex interfaces. ToolStack focuses on previewing: paste or type Markdown and see the rendered result immediately. If you just need to preview and export without managing files or accounts, ToolStack is simpler and faster to use.
Verdict
Dillinger and StackEdit are powerful for full Markdown editing workflows. But if you want a fast, ad-free preview with no accounts, no cloud sync, and full privacy, ToolStack Markdown Preview is the better choice for quick previews and exports.