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wtf is zerox?

wizenheimer/zerox — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2024-07-30

TypeScriptAudience · developerComplexity · 2/5StaleSetup · easy

TL;DR

Zerox converts PDFs into clean Markdown by using an AI vision model to read each page, preserving tables and layout better than traditional OCR.

Mindmap

mindmap
  root((Zerox))
    What it does
      PDF to Markdown
      AI vision reading
      Preserves tables
    How it works
      Convert PDF to images
      Send to GPT-4o-mini
      Stitch into Markdown
    Use cases
      Parse invoices
      Extract academic tables
      Prep docs for AI search
    Tech stack
      TypeScript
      GPT-4o-mini vision
    Pricing
      Cheaper than Textract
      Better table accuracy

Code map

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Why would anyone build with this?

REASON 1

Parse hundreds of invoices into structured Markdown for loading into a database.

REASON 2

Extract tables and structured data from academic papers with complex layouts.

REASON 3

Convert PDF documents into a clean format ready for AI processing or search indexing.

REASON 4

Turn multi-page PDFs with tables spanning pages into consistently formatted Markdown.

What's in the stack?

TypeScriptGPT-4o-mini

How it stacks up

wizenheimer/zerox0xradioac7iv/tempfs7vignesh/pgpulse
Stars—00
LanguageTypeScriptTypeScriptTypeScript
Last pushed2024-07-30——
MaintenanceStale——
Setup difficultyeasymoderatemoderate
Complexity2/53/54/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Requires an OpenAI API key since it calls GPT-4o-mini for each page.

Yoink these prompts

Prompt 1
Show me how to run Zerox on a PDF file to convert it into Markdown.
Prompt 2
Explain how Zerox uses GPT-4o-mini vision to read PDF pages instead of traditional OCR.
Prompt 3
Set up Zerox with 'maintain format' mode so table formatting stays consistent across a multi-page document.
Prompt 4
Compare the cost of processing 1,000 pages with Zerox versus AWS Textract or Google Document AI.
Prompt 5
Help me feed a folder of invoice PDFs through Zerox and collect the Markdown output.

Frequently asked questions

wtf is zerox?

Zerox converts PDFs into clean Markdown by using an AI vision model to read each page, preserving tables and layout better than traditional OCR.

What language is zerox written in?

Mainly TypeScript. The stack also includes TypeScript, GPT-4o-mini.

Is zerox actively maintained?

Stale — no commits in 1-2 years (last push 2024-07-30).

How hard is zerox to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is zerox for?

Mainly developer.

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