PDF to JSON Converter — Free & Online
Turn any PDF into structured JSON — headings, lists, and text with positions. No upload, no API key, no limits.
What can you do with PDF as JSON?
PDF as JSON turns an unreadable binary document into structured data any script, database, or LLM pipeline can consume directly.
Chunk documents for RAG
Structured lines with types make it easy to split a PDF into meaningful chunks for vector databases and LLM retrieval.
Extract a table of contents
Filter lines where type is "heading" and you have an instant outline of the whole document.
Build data pipelines
Pipe the JSON straight into scripts, ETL jobs, or automation tools — no PDF library needed downstream.
Archive and search
JSON is indexable by any search engine or database, unlike a binary PDF.
Need a human-readable format instead?{' '} Convert PDF to Markdown{' '} or{' '} extract plain text.
Frequently asked questions
How do I convert a PDF to JSON?
Drop your PDF into the box above. The tool extracts every line of text and outputs structured JSON — with page numbers, line types (heading, list item, text), font sizes, and positions. Copy it or download the .json file.
What does the JSON output look like?
An object with fileName, pageCount, and a pages array. Each page contains its lines, and each line has a type (heading, list_item, or text), the text content, font size, and vertical position — ready for custom pipelines, scripts, or LLM ingestion.
Is this PDF to JSON converter free?
Yes, free and unlimited with no sign-up. Everything is computed in your browser, so there are no API costs or rate limits.
Are my PDFs uploaded to a server?
No. Extraction runs 100% locally in your browser — your documents never leave your device.
When should I use PDF to JSON instead of PDF to text or Markdown?
Choose JSON when you need structure a program can consume — for example filtering headings, rebuilding a table of contents, chunking documents for RAG, or feeding a data pipeline. For reading or notes, plain text or Markdown is simpler.
Why is the JSON output empty?
Your PDF is probably scanned (images without a text layer). Run it through OCR first, then convert it here.