Pricing

from $2.00 / 1,000 post scrapeds

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Substack Scraper — Posts to JSON & AI-Ready Markdown

Try for free

Scrape every post from any Substack newsletter (including custom domains). Get titles, authors, dates, likes, comments, paywall status, tags and full post text as clean Markdown for AI/RAG. No login, no browser.

Pricing

from $2.00 / 1,000 post scrapeds

Rating

0.0

(0)

Developer

Clean Data Labs

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Total users

Monthly active users

19 hours ago

Last modified

Substack Scraper: Posts to JSON & AI-Ready Markdown

Scrape every post from any Substack newsletter, including publications on custom domains. You get clean, structured data plus the full text of free posts as Markdown, ready to drop into ChatGPT, Claude, a vector database, or a RAG pipeline.

No login. No browser. Fast and cheap.

What you get for each post

Field	Example
`title`, `subtitle`	"Shea Serrano did the math on podcasting..."
`url`, `slug`	`https://on.substack.com/p/shea-serrano-podcast`
`postDate`	`2026-09-10T17:58:26Z`
`authors`	`["Arielle Swedback", "Shea Serrano"]`
`likes`, `comments`, `restacks`	`1350`, `0`, `63`
`wordCount`	`3649`
`audience`, `isPaywalled`	`everyone`, `false`
`section`, `tags`	`Stories`, `[]`
`type`	`newsletter` / `podcast` / `thread`
`markdown`	Full post body as clean Markdown (free posts)
`coverImage`, `podcastUrl`	URLs

Use cases

AI & RAG: turn a newsletter's whole archive into a Markdown knowledge base
Competitor & content research: see which topics get the most likes and comments
Sponsorship & partnership research: find active newsletters in your niche
Monitoring: schedule daily runs with since to capture only new posts

How to use

Add one or more publications: lenny, on.substack.com, or https://www.lennysnewsletter.com
(Optional) Set Max posts, Only posts after a date, or Keyword filter
Click Start and export as JSON, CSV, Excel, or via API

Example input

{
  "publications": ["https://www.lennysnewsletter.com", "on.substack.com"],
  "maxPostsPerPublication": 100,
  "since": "2026-01-01",
  "includeMarkdown": true
}

Pricing

You pay per post saved. There are no monthly fees, and filtered-out posts cost nothing.

Notes

Paywalled posts return metadata only. Full text is included for free posts.
Only publicly available data is collected.

Support

Found a bug or need a field added? Open an issue on the Issues tab. Replies usually come within 24 hours.

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