WriterLab
Start

Write Once,
Publish Everywhere

Paste your Markdown. Get perfectly formatted content for WeChat, Xiaohongshu, X, Reddit, and Zhihu — in one click.

Start Formatting — FreeSee How It Works

No signup required. 100% runs in your browser.

writerlab.xyz/app
Markdown
# My Article
Hello **world**!
```python
def hello():
print("Hi")
```
WeChat Preview
My Article
Hello world!
python
def hello():
    print("Hi")

How It Works

Three steps. Thirty seconds. Perfect formatting.

STEP 1

Paste your Markdown

Copy your Markdown into the editor. We support all standard syntax.

STEP 2

Choose your theme

Select from 8 built-in themes designed for different platforms and content types.

STEP 3

Copy to your target platform

Click one button. Your formatted content is ready to paste into WeChat, Xiaohongshu, X, Reddit, or Zhihu.

Built for Your Workflow

Whether you're a solo developer or a content team, WriterLab fits your process.

Technical Writers

Before

You write tech tutorials in Obsidian or VS Code. When you publish to WeChat, code blocks break formatting. Math formulas don't render. You spend hours manually fixing syntax highlighting.

After

Paste your Markdown. Code highlighting works perfectly for Python, JavaScript, Go, Rust, and 10+ languages. LaTeX formulas render beautifully. Your technical articles look professional in under 30 seconds.

Our formatter is built for technical writers. We understand code, math, and Markdown — because we use them too.

Multi-Platform Content Creators

Before

You publish the same article across WeChat, Xiaohongshu, Zhihu, and X. Each platform requires different formatting. You copy-paste-adjust-repeat for every single post.

After

Write once in Markdown. One click formats your content for each platform's specific requirements. Your brand voice stays consistent everywhere. You save 2+ hours per article.

Multi-platform publishing shouldn't mean multi-platform formatting work. We handle the technical details. You focus on creating great content.

Brand Content Teams

Before

Your brand publishes across multiple channels. Formatting inconsistencies hurt your brand image. Designers spend hours manually adjusting layouts for each platform.

After

One Markdown source. Consistent, polished formatting across all platforms. Your team saves hours every week. Your brand looks professional everywhere.

Built for teams who care about brand consistency. Format once, publish everywhere.

Everything You Need

Professional formatting tools built for Markdown-first writers.

Code Highlighting

Syntax highlighting for 10+ programming languages with multiple themes.

Your technical tutorials look professional. Developers can read your code snippets without pain.

Math Formula Rendering

Full LaTeX support for inline and block equations.

Academic and technical content with equations looks publication-ready. No more broken formulas.

8 Built-in Themes

Professional themes designed for specific content types and platforms.

Your content matches your brand voice. Choose the perfect theme for technical articles or lifestyle content.

100% Browser-Local Processing

All formatting happens in your browser. Zero data uploads to our servers.

Complete privacy. No account required. Works offline. Your unpublished ideas stay yours.

Local Image Support

Upload images directly. They're converted to Base64 and embedded in your formatted output.

Copy once. Paste anywhere. Your images travel with your content.

Real-Time Preview

Split-screen editor: Markdown on the left, live preview on the right.

Get it right the first time. Save time. Reduce frustration.

Simple, Transparent Pricing

Start free. Upgrade when you need more.

Free

FreeCore features forever
  • All 8 built-in themes
  • Code highlighting (10+ languages)
  • LaTeX math formula rendering
  • Local image upload (Base64)
  • One-click copy to WeChat
  • 100% browser-local processing
  • Unlimited usage
Start Formatting Now

No credit card required. No account needed.

Phase 2 — Coming Soon

Pro

¥9.99/month or ¥79/year (save 34%)
  • 20+ premium themes
  • Custom theme editor (colors, fonts)
  • PNG export without watermarks
  • ZIP batch image import
  • Priority access to new features
  • Priority support
Join Waitlist

Cancel anytime. Full refund within 7 days.

Phase 2 — Coming Soon

Lifetime

¥149One-time payment
  • All Pro features
  • Lifetime updates
  • One payment. Yours forever.
Reserve Your Spot

One payment. Yours forever.

Frequently Asked Questions

Yes. Core features are free forever. Phase 1 is completely free to help you get started. Phase 2 will add optional Pro features for power users, but the free plan will always remain free.
No. Just open the site and start formatting. Your drafts are auto-saved to your browser's local storage. Nothing is uploaded to our servers.
Phase 1 focuses on WeChat Official Accounts with perfect code highlighting and math formula support. Phase 2 will add Xiaohongshu, Zhihu, X (Twitter), and Reddit formatting.
Python, JavaScript, Go, Rust, Java, C++, CSS, HTML, Bash, SQL, and more. If a language isn't supported, let us know — we'll add it.
Use standard LaTeX syntax. Inline formulas go between single dollar signs: $E = mc^2$. Block formulas use double dollar signs: $$\sum_{i=1}^{n} i = \frac{n(n+1)}{2}$$
No. 100% of processing happens in your browser. Your drafts and images are stored in your browser's IndexedDB. They never leave your device unless you explicitly copy and paste them elsewhere.
Phase 1 does not support PDF/PNG export. Phase 2's Pro plan will include PNG export without watermarks. For now, you can copy the formatted HTML and paste it into your browser's print dialog to save as PDF.
Yes. The site is fully responsive and works on mobile browsers. However, for the best experience, we recommend using a desktop or tablet for Markdown editing.
Xiumi and 135 are template-based visual editors. They're powerful but have a learning curve and aren't Markdown-friendly. Our tool is designed for Markdown-first writers who want code highlighting, math formulas, and zero-learning-curve formatting.
MeTool is great for basic WeChat formatting. We add code highlighting, math formulas, more themes, and Phase 2 multi-platform support. Plus, our entire processing pipeline is browser-local for maximum privacy.

You already write in Markdown.
Start formatting today.

Your technical tutorials deserve professional formatting. Your brand deserves consistency. Your time deserves respect.

Start Formatting — Free