Everything you can do with Pastyx

Pastyx turns markdown into clean, shareable pages. Open the home page, write or paste your content in the editor, tweak the optional settings, and hit Create paste to get a permanent, SEO-friendly link — no sign-up, no ads.

Under the hood, your markdown is rendered with GitHub-Flavored Markdown plus a generous set of extensions (math, callouts, spoilers, footnotes, definition lists, emoji and more), then sanitized before it ever touches a browser.

The editor has three modes — Write, Preview and Split — so you can see the rendered output as you type. Use the toolbar buttons or keyboard shortcuts to format text, insert links, code, tables and more.

Below the editor, the action row exposes the paste settings (title, expiry, password, edit key and burn-after-read — all detailed in the next section). When you're happy, press Create paste and you'll be redirected to its URL, ready to share.

Every setting is optional — a blank form still produces a valid paste. Here's exactly what each one does and when to reach for it.

Open a paste at /your-paste-id. The page shows the title, author, view count, expiry and rendered markdown, plus an action row to Copy the source, Share the link, open the Raw text, or jump to Edit. Password-protected pastes prompt for the password first.

Links unfurl nicely on social platforms and Telegram (with an Instant View-friendly body), and the first image in your markdown is automatically used as the preview image.

Click Edit on a paste or visit /edit/your-paste-id. You'll be asked for the edit key. Once verified, you can rewrite the content, change the title or expiry, set/clear the password, toggle burn-after-read, rotate the edit key, or delete the paste for good. There's no undo on delete, so be deliberate.

Pastyx speaks GitHub-Flavored Markdown plus the extensions below. Each example is rendered live by the exact pipeline your pastes use — what you see is what you'll get.

**bold**, _italic_, ++underline++,
~~strikethrough~~, ==highlight==,
E=mc^2^ (super), H~2~O (sub),
`inline code`

# Heading 1
## Heading 2
### Heading 3
#### Heading 4

- Bullet one
- Bullet two
  - Nested bullet

1. First
2. Second

- [x] Done item
- [ ] Todo item

[Visit Pastyx](https://pastyx.pages.dev)

![Logo](https://placehold.co/240x120/2563eb/ffffff?text=Pastyx)

Resize with =WxH:
![Sized](https://placehold.co/400x400/0d9488/ffffff?text=Resize =120x80)

Inline `const x = 1` code.

```js
function greet(name) {
  return `Hello, ${name}!`;
}
```

Inline math: $E = mc^2$ and $\frac{a}{b}$.

Block math:

$$\int_{0}^{\infty} e^{-x^2}\,dx = \frac{\sqrt{\pi}}{2}$$

| Feature | Supported |
| ------- | :-------: |
| Tables  | ✅ |
| Align   | ✅ |

> A normal blockquote.

::: blue
**Note:** callouts come in 16 colors.
:::

::: red
**Warning:** use them to draw attention.
:::

Markdown
:   A lightweight markup language.

Here is a footnote reference[^1].

[^1]: And here is the footnote body.

Plot twist: ||the cake is a lie||.

Click the blurred bar to reveal it.

Ship it :rocket: :tada:
Looks good :+1: :fire:

<center>Centered text</center>

<font name="Inter">Custom font face</font>

<right>Right-aligned</right>

The editor supports the usual formatting shortcuts plus find & replace.

Pastyx exposes a REST API under /api. All endpoints return JSON unless noted; errors return { "error": "…" } with an appropriate status code.

POST /api/paste
Content-Type: application/json

{
  "id": "demo",
  "title": "Demo",
  "author": "@PastyX",
  "expiresAt": null,
  "hasPassword": false,
  "hasEditKey": true,
  "url": "https://pastyx.pages.dev/demo"
}

GET /api/paste/:id
GET /api/paste/:id?password=yourpassword

{
  "id": "demo",
  "title": "Demo",
  "author": "@PastyX",
  "content": "console.log(\"Hello, World!\");",
  "expiresAt": "2024-01-22T12:00:00.000Z",
  "hasPassword": false,
  "hasEditKey": true,
  "views": 5,
  "createdAt": "2024-01-15T12:00:00.000Z",
  "updatedAt": "2024-01-15T12:00:00.000Z",
  "burnAfterRead": false
}

// 404 — not found or expired
{ "error": "Paste not found" }

// 401 — password required / wrong password
{ "error": "Password required", "passwordRequired": true }
{ "error": "Invalid password", "passwordRequired": true }

{ "success": true, "id": "demo", "title": "Updated", "content": "new content" }

// request
{ "editKey": "the-edit-key" }

// response
{ "success": true }

GET /api/paste/demo/raw