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  3. 🤔 What's the difference between Parsio and Airparser?

🤔 What's the difference between Parsio and Airparser?

TL;DR

  • Most of the time, we recommend Parsio for well-known document types such as invoices, bank statements, receipts, business cards, KYC and ID documents, and PDF tables, where we provide pre-trained AI models.

  • Parsio is also the right choice if you simply need OCR — for example, converting PDFs or images into editable text formats like Excel, CSV, or TXT, without extracting structured data.

  • We recommend Airparser for everything else — especially documents with messy, changing, or unpredictable layouts. Airparser is more general-purpose than Parsio and can handle a wider variety of document types

We develop and maintain two document extraction products: Parsio and Airparser.

While both tools solve document parsing and data extraction problems, they are built on different technologies and optimized for different use cases.

This page gives you a practical overview to help you choose the right tool.

For a more in-depth comparison, you can also read our blog post: Parsio vs Airparser: Which Document Parser Should You Use?

Parsio

Parsio is a mature document parsing platform with multiple specialized parsers, each designed for a specific type of document or workflow.

Parsio currently offers 4 parsing engines:

1. Template-based parser

Best suited for:

  • Machine-generated emails

  • Documents with a consistent structure

Typical examples include transactional emails such as order confirmations, shipping notifications, or payment alerts.

2. AI-powered parser (pre-trained models)

Uses pre-trained AI models and works best for common business documents, such as:

  • Invoices

  • Receipts

  • Bank statements

  • Business cards

  • ID and KYC documents

  • PDF tables

This parser is usually the best choice when your document type is supported by a dedicated model.

3. GPT-powered parser

Designed for:

  • Emails and documents with changing layouts

  • Human-generated content

You can think of it as a lightweight version of Airparser: it uses LLMs to extract data from flexible layouts, but with fewer configuration options and less flexibility than Airparser’s schema-based approach.

4. OCR converter

Converts scanned PDFs and images into editable formats:

  • Excel

  • CSV

  • JSON

  • HTML

  • Markdown

  • TXT

This is ideal when your main goal is document conversion, not structured data extraction.

You can learn more about choosing the right Parsio parser here:
https://help.parsio.io/data-extraction/choosing-the-right-parser-type

Airparser

Airparser is a modern, LLM-powered document parser built for flexibility.

Instead of writing prompts or relying on fixed rules, Airparser lets you:

  • Define a structured extraction schema (fields you want to extract)

  • Let the LLM handle the rest

Key capabilities of Airparser include:

  • Strong support for unstructured and messy documents

  • OCR (Optical Character Recognition)

  • Recognition of handwritten text

  • Better handling of documents with frequently changing layouts

Overall, Airparser is more general-purpose than Parsio and can handle a wider variety of document types — especially when no pre-trained model exists.

Why did we create Airparser as a separate product?

Airparser was built as a separate product on purpose.

This allows us to:

  • Experiment and iterate faster on LLM-based features

  • Introduce new extraction approaches without affecting existing Parsio workflows

  • Keep Parsio stable and optimized for high-volume, production use cases

Both products continue to evolve, but each focuses on what it does best.

Choosing the right tool

Below are some practical examples to help you decide.
This list is not exhaustive, but it covers the most common use cases.

Parsio is suitable for:

  • Machine-generated emails with consistent layouts

  • Invoices and receipts

  • Bank statements

  • Business cards

  • KYC and ID documents

  • PDF table extraction

  • Contracts

  • Converting scanned documents to editable formats (OCR)

Airparser is suitable for:

  • Human-generated emails and documents

  • Documents with complex or inconsistent layouts

  • Complex PDF tables

  • Documents with frequently changing formats

  • Invoices (when layouts vary significantly)

  • CVs and resumes

  • Contracts

  • Email signature parsing

  • Excel and CSV files (XLSX / CSV) containing tabular data such as product catalogs, price lists, exports, or reports

Final thoughts

If you are working with standard business documents and want fast, reliable results using pre-trained models, Parsio is usually the best choice.

If your documents are unstructured, unpredictable, or constantly changing, Airparser is the better option.

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