AI2JSON
Summary
Most PDF parsers require you to build templates field by field — and the moment a vendor changes their invoice layout, you're back in the template editor. AI2JSON skips that entirely.
The tool accepts a PDF over a single REST call and returns typed JSON with extracted fields, line items, dates, amounts, and a confidence score — no field mapping, no OCR configuration. The vendor states 95%+ accuracy on common document types like invoices and receipts, with average parse times under two seconds. OCR for scanned or image-based PDFs is a paid-only feature, so teams processing physical document scans on the free tier will hit a wall immediately. Volume limits are strict: the free tier covers 10 documents per month, and batch processing is a paid-only feature — meaning teams with high-volume pipelines need to plan their tier before going to production.
Bottom line: Pick this for a developer who needs clean JSON from text-based PDFs without building a template engine — but plan on a paid tier the moment your pipeline handles scanned documents or exceeds a few hundred documents per month.
Pricing Plans
Subscription- Free Tier
- 10 documents per month
Free
10 docs/month
- All document types
- Structured JSON output
- API key access
Starter
500 docs/month
- Priority processing
- Email support
- Field schema hints
Pro
2,000 docs/month
- Batch processing
- Custom AI prompts
- Slack support
Business
10,000 docs/month
- Dedicated support
- Custom integrations
- SLA guarantee
View full pricing on ai2json.com →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Zero-template extraction using AI-inferred document structure, so adding a new vendor or document format does not require rebuilding field mappings.
- Confidence scores returned with every parse, which means downstream code can route low-confidence results to a review queue instead of letting bad data reach your accounting system silently.
- Single REST endpoint compatible with any HTTP client or no-code tool, so integration into an existing workflow does not require an SDK or language-specific library.
- Documents deleted immediately after processing with EU server hosting, so teams with data residency requirements get a documented compliance answer without negotiating a custom data agreement.
- Free tier with no credit card required, so a developer can validate extraction quality against real documents before committing to a paid volume.
Cons
Sign in to edit- OCR for scanned or image-based PDFs is a paid-only feature — teams processing physical receipts or paper contracts on the free tier get no output, not degraded output. The workaround is an immediate tier upgrade or a separate OCR pre-processing step before calling the API.
- Batch processing is a paid-only feature, and free-tier volume caps at 10 documents per month. A team building an invoice pipeline that processes hundreds of documents weekly hits both constraints before the first production deploy — at which point they are either upgrading or evaluating document parsers with higher free-tier throughput.
- The tool is a one-shot parse operation with no workflow logic, conditional branching, or document routing. Teams that need to split, classify, and route documents to different downstream systems based on content must build that orchestration layer themselves or switch to a platform that includes it.
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About
- Platforms
- REST API, any HTTP client
- API Available
- Yes
- Self-Hosted
- No
- Last Updated
- 2026-07-01T20:34:36.812Z
Best For
Who it's for
- Developers building document workflows
- Teams handling invoices and receipts
- No-code automation users
- Applications needing reliable JSON output from PDFs
What it does well
- Extracting invoice data into JSON
- Parsing receipts for accounting systems
- Converting contracts to structured fields
- Processing bank statements automatically
- Integrating PDF extraction into web apps
Integrations
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Frequently Asked Questions
- Is AI2JSON free?
- AI2JSON has a permanent free tier alongside paid upgrades. You can keep using a baseline version indefinitely without paying.
- Is AI2JSON open source?
- No — AI2JSON is a closed-source tool. Source code is not publicly available.
- Does AI2JSON have an API?
- Yes. AI2JSON exposes a developer API. See the official documentation at https://ai2json.com for details.
- What platforms does AI2JSON support?
- AI2JSON is available on: REST API, any HTTP client.
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Curated lists that include this category
Template-based PDF extractors collapse the moment the source document changes layout. AI2JSON sends a PDF to a single POST endpoint and returns structured JSON — document type, confidence score, and extracted fields — without requiring any prior configuration. The workflow is three steps: register for an API key, POST the file, parse the response. The vendor states the underlying model is DeepSeek, which classifies document type automatically and extracts fields without manual rules.
The differentiating claim is zero-template extraction: the AI infers structure from the document itself, which means an invoice from a new vendor does not require a new template. Confidence scores are returned with every parse, so downstream code can flag low-confidence extractions for review rather than silently passing bad data into accounting systems.
For text-based PDFs — invoices, contracts, bank statements, receipts with embedded text — the tool fits directly into a document automation pipeline via REST API, compatible with Python, JavaScript, cURL, or no-code HTTP clients. The ceiling appears at two points: scanned or image-based PDFs require OCR, which is gated to paid tiers; and batch processing is also a paid-only feature. Teams running high-volume document pipelines or processing physical scans on free access will encounter both limits before they reach production scale.
Servers are hosted in the EU (Estonia), documents are deleted after processing and not stored, and all traffic runs over HTTPS with API key authentication — details the vendor states explicitly for teams with data residency or compliance requirements.