World's most Intelligent Data Extraction and Document Processing Platform

Say good bye to manual data entry and document processing. Automate document extraction, interpretation and processing using KlearStack AI.

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Trusted by Fortune 100 companies.
How It Works?

Intelligent data extraction WITHOUT creating templates for each document layout. Automate end-to-end processes and run decision analytics directly on top of the documents.


Upload Invoices, Purchase Orders, Contracts, Legal Documents and more. Extract Data. Catalog/ Sort.


More than 95% Accuracy. Compare original to extracted. Input missing metadata. Self-learning algorithm.


Open RESTful APIs . Easy integration with any systems. Out-of-the-box integrations with SAP, QuickBooks, and more.

Security and Compliance

Complete data security, exclusivity and compliance.

Quickly & Accurately Extract Data

With cognitive capabilities, KlearStack AI sees the scanned documents the same way the human mind reads. Capture, convert and analyse data from any jpg, png, tiff, bmp, pdf document without templates.

KlearStack-Intelligent Document Automation
Intelligent extraction of significant fields
Automatically upload documents

Use any mobile scanning software, email documents, upload using APIs, manual upload using our browser Interface.

Intelligent extraction of significant fields
KlearStack classification engine

Classify document types like Invoices, Purchase Orders, Bill of Lading, Performa Invoices, Credit Notes, ID Cards, etc.

Intelligent extraction of significant fields
Intelligent extraction of significant fields

KlearStack AI uses machine learning to easily identify the significant fields from the finance documents.

Adaptive deep learning models
Automate straight through processing & exception management

Using our three layered data validation technology confidently automate straight through processing. Automatically highlight documents that fail any re conciliation checks.

Adaptive deep learning models
Adaptive deep learning models

Even if the invoice layout changes, Machine Learning models handle the data extraction smoothly.

Template independent extraction
Template independent extraction

It is template-less extraction! Save hundreds of person-days that are spent in custom template designing.

On-premise OCR extraction
On-premise option

Automated Invoice Processing software can also be deployed On-Premise.

Say “No” to Templates. Easy Setup. Cancel Anytime. Choose Your Plan!


No. of pages: 10,000 - 100,000 per year
  • No of fields: Upto 15*
  • Integration: KlearStack API
  • Data Retention Policy: 3 months
  • Batch Processing
  • Support: Email Only


No. of Pages: 100,000 - 1 Mn per year
  • No of fields: Upto 25*
  • Integration: KlearStack API. Email.
  • Data Retention: 6 months
  • Batch or Online Processing
  • Support: Email Only


No. of Pages: 1 Mn+ per year
  • No of fields: Upto 35*
  • Integrations: API. Email. Custom
  • Data Retention: 2 Years
  • Batch or Online Processing
  • Support: 24/7. Email and Phone.
Frequently Asked Questions

200% productivity increase. 5X reduced turnaround time. 60% reduction in expenses. $0 set-up costs. Still have questions? Check our FAQ below:

  1. KlearStack provides ‘end-to-end’ data extraction (including line – items) from Invoices with very high accuracy.
  2. Most of the alternatives fail to extract line items precisely.
  3. It is truly a template-independent ‘Data Extraction Software’. Absolutely NO template co-ordinates or rules needed!
  4. The Adaptive Deep Learning Model increasingly train themselves thereby increasing accuracy.
  5. Unlike other alternatives in the market, it is not just-OCR solution.
  6. Free Trial for limited time period.
  1. Eg: Date can be at multiple places in a invoice, KlearStack recognizes the Invoice Date correctly.
  2. Eg: Total can be written as “Total 2 nos. Rs. 76,000”; A normal Regex/Rule will fail in this case. KlearStack can identify the ‘total amount’ precisely in all layouts.
  3. Using Regex, you cannot determine Supplier name on the invoice.
  4. Regex cannot help in identifying the correct GSTN number for Supplier.
  5. Regex will not help in extracting line items
  1. Accuracy of Invoice Processing is 98% in Lab.
  2. For new invoices, it is ~ 85% & within 2-3 weeks, as the ML model retrain themselves, it increases beyond 95%
  1. Yes, KlearStack is a bulk invoice processing software. Your entire billing process can be automated in KlearStack software.

Yes, KlearStack can process data from multi-page invoices with very high accuracy.

Yes, KlearStack provides On-prem support.

KlearStack Software can extract invoice data from PDF, JPEG, BMP, TIFF file formats.

Yes, KlearStack is invoice data extraction software with Multi-user support.

    KlearStack is fully compliant with features pertaining to :
  • Network Security
  • Database Security.
  1. Using UI, you can export data into csv format/excel spreadsheet
  2. Using API, you will get data in json format

Try KlearStack Today

Is your company processing more than 1000 documents every month? Learn how KlearStack AI can automate your business processes. Get in touch!

Say “No” to Templates. Easy Setup. Cancel Anytime.

Request Free Demo