Turn any file into
structured JSON.
One API call. Send PDFs, images, HTML, or emails with your own schema — get back validated JSON with confidence scores. No custom parsers. No regex. Ever.
From messy file → clean JSON in seconds
INVOICE #INV-2026-0891 From: NovaTech Industries Bill To: Globex Corp Date: March 25, 2026 · Due: April 24, 2026 Enterprise Software License 5× $1,200 = $6,000.00 Implementation Services 40h $150.00 = $6,000.00 Annual Support Plan 1× $2,500 = $2,500.00 Training Workshop (on-site) 2d $800.00 = $1,600.00 ──────────────────────────────────────────────────── Subtotal: $16,100.00 · Tax (9.5%): $1,529.50 TOTAL DUE: $17,629.50 · Terms: Net 30
{
"success": true,
"data": {
"vendor": "NovaTech Industries",
"bill_to": "Globex Corp",
"invoice_number": "INV-2026-0891",
"date": "2026-03-25",
"due_date": "2026-04-24",
"subtotal": 16100.00,
"tax": 1529.50,
"total": 17629.50,
"payment_terms": "Net 30"
},
"confidence": {
"vendor": 0.99,
"total": 0.99,
"invoice_number": 0.99
},
"meta": { "processing_ms": 1380 }
}Stop writing brittle parsers and regex that break every time a format changes.
The data you need is trapped
Every business has critical data locked inside unstructured content. Getting it out is painful.
Manual data entry
Someone reads an invoice, types the numbers into a spreadsheet. Slow, expensive, error-prone. Doesn't scale.
Custom parsing scripts
Regex, OCR pipelines, scraping scripts. Brittle — breaks every time a vendor changes their invoice format.
Multiple tools stitched together
One service for OCR, another for scraping, another for PDFs, another for emails. Complex, expensive, hard to maintain.
One API call replaces all of it
Send any content — a photo of a receipt, a PDF invoice, a product page URL, a customer email — plus a JSON Schema describing what you want. Get back validated, typed, structured JSON. Every time. No custom code. No multiple tools. No manual entry.
Who uses CleanJSON
Any workflow that needs structured data from unstructured content.
AI agents & automations
Your agent processes documents, emails, and web pages but needs clean structured data to act on. CleanJSON gives it guaranteed-valid JSON with confidence scores — so it knows exactly how much to trust each value before making decisions.
Developers building integrations
You're building a pipeline that pulls data from invoices, receipts, forms, or web pages into your database or CRM. Instead of writing and maintaining custom parsers for every format, you send content to one endpoint and get typed JSON back.
Companies processing documents at scale
Your team processes hundreds or thousands of invoices, purchase orders, compliance forms, or contracts. Instead of manual data entry or fragile OCR pipelines, every document goes through one API and comes out as clean, validated JSON.
Anyone tired of copying data by hand
You're reading a PDF and typing numbers into a spreadsheet. You're copying product specs from a website. You're extracting dates from emails. CleanJSON does this in seconds — accurately, every time, at any scale.
Three steps. One API call.
Your agent sends any content plus a schema. We handle the rest.
Send Any Input
POST an image, PDF, HTML, URL, raw text, or email. Base64 or plain text. We accept everything.
Define Your Schema
Provide a standard JSON Schema describing the fields you want. Any shape, any depth, any types.
Get Clean JSON
Receive validated, typed JSON with per-field confidence scores. Schema-compliant. Ready to use.
Works with everything
One endpoint. Six input types. Zero configuration.
One API call. Perfect JSON.
Send messy real-world data. Get back clean, typed, validated JSON.
POST /api/v1/extract
{
"input_type": "text",
"content": "Invoice #INV-2026-042 from Acme Corp.
Date: March 15, 2026. Total: $1,250.00
Items: 2x Widget Pro ($500 ea),
1x Service Fee ($250)",
"schema": {
"type": "object",
"properties": {
"vendor": { "type": "string" },
"invoice_number": { "type": "string" },
"date": { "type": "string", "format": "date" },
"total": { "type": "number" },
"line_items": { "type": "array", "items": {...} }
},
"required": ["vendor", "total"]
}
}{
"success": true,
"validated": true,
"data": {
"vendor": "Acme Corp",
"invoice_number": "INV-2026-042",
"date": "2026-03-15",
"total": 1250.00,
"line_items": [
{ "description": "Widget Pro",
"quantity": 2, "unit_price": 500, "total": 1000 },
{ "description": "Service Fee",
"quantity": 1, "unit_price": 250, "total": 250 }
]
},
"confidence": {
"vendor": 0.99,
"invoice_number": 0.99,
"date": 0.90,
"total": 0.99,
"line_items": 0.95
},
"meta": {
"input_type": "text",
"processing_ms": 1240,
"tokens_used": 820,
"retries": 0
}
}See it work — right now
Pick a real document and watch CleanJSON extract structured data in seconds.
No API key needed to preview · Full playground available after free signup — includes 5,000 free tokens
Built for production agents
Schema-validated output
Every response is validated against your JSON Schema with Ajv. Failed validations auto-retry with error context. You get typed data or clear errors — never malformed JSON.
Per-field confidence scores
Every field gets a 0.0–1.0 confidence score. Set a threshold and we'll reject low-confidence extractions automatically. Your agent knows exactly how much to trust each value.
Auto type coercion
"$1,250.00" becomes 1250.00. "March 15, 2026" becomes "2026-03-15". "yes" becomes true. We handle the messy real-world formatting so your agent gets clean typed values.
Zero hallucination policy
If a value isn't in the source, we return null — never a plausible guess. Confidence 0.0 for anything uncertain. Your agent can trust every non-null value has evidence in the input.
Pay only for what you extract.
Token-based billing. No subscriptions required. Starts free.
Built for real-world extraction
From invoices to product pages — if it has data, CleanJSON extracts it.
Frequently asked questions
Why should I use CleanJSON instead of building my own parser?+
How is this different from using an LLM directly?+
What input formats does CleanJSON support?+
How does schema-based extraction work?+
What are confidence scores?+
Does CleanJSON hallucinate or make up data?+
How does pricing work?+
Can I use CleanJSON with my AI agent or automation?+
How fast is the extraction?+
What happens if extraction fails?+
Can I upgrade or downgrade at any time?+
Do unused tokens roll over?+
Extract your first JSON in 30 seconds.
Sign up free, grab your API key, and make your first extraction. No credit card. No contracts. No minimums.
Try it free →5,000 tokens free · No credit card required