How is the JSON structure decided?

It's built in your browser from the document's own headings, labels, lists, and tables, instead of forcing it into one generic template. Add your own AI key and an AI model designs the structure instead.

No, only text content is converted. Images and complex layouts are not carried over.

Is there a page limit?

No. Conversion runs in your browser, so any length works. With your own AI key, the first 120,000 characters of extracted text are sent to the AI model.

Is PDF to JSON free to use?

Yes, converting a PDF to JSON with AI is completely free with no signup.

How accurate is the JSON structure?

The AI model reads the document's layout and produces well-structured JSON, but always spot-check the result against the original PDF for anything critical.

All tools

PDF to JSON

Upload a PDF and get clean, properly structured JSON back, generated with AI.

1Upload PDF
2Pick key style
3Copy or download

Drop your PDFs here Many PDFs at once, up to 1000 pages each Choose PDFs

Property name case i

Using a lot? Bring your own free or paid API key for unlimited requests

API key (optional)

The free tier is limited to a few requests per day. Paste your own key and Drefly detects which provider it belongs to. Your key is stored only in this browser and never saved on our servers.

Google AI Studio, generous free daily quota, key starts with AIza
Groq Console, free tier with fast open models, key starts with gsk_
OpenRouter, several free models, key starts with sk-or-
Anthropic Console, paid with a small trial credit, key starts with sk-ant-
OpenAI Platform, paid, key starts with sk-

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PDF to JSON

PDF to JSON questions, answered.