OCR developer tools
Every listing tagged ocr, A to Z: 8 tools across 1 category. Listed in alphabetical order, not ranked.
Amazon Textract
AWS's document parsing and OCR service: Detect Document Text at $1.50 per 1,000 pages, Analyze Document for tables, forms, layout and natural-language queries, plus Expense and ID APIs. New AWS customers get a three-month free tier.
Azure AI Document Intelligence
Microsoft's document parsing service, now part of Foundry Tools: Read OCR at $1.50 per 1,000 pages, a Layout model that outputs Markdown with tables at $10, and prebuilt and custom extraction models. 500 free pages a month, and containers to run it on your own hardware.
Docling
Open-source (MIT) document parsing library started at IBM Research: converts PDF, DOCX, PPTX, XLSX, HTML and images to Markdown, HTML or JSON with layout, reading order, tables, formulas and OCR for scans. Runs locally, with docling-serve for an HTTP API and an MCP server.
Google Document AI
Google Cloud's document parsing service: Enterprise Document OCR at $1.50 per 1,000 pages, Layout Parser with chunking for RAG at $10, Form Parser and custom extractors at $30, plus prebuilt invoice and expense parsers. No charge for failed requests.
Invofox
Document parsing API that turns invoices, payslips, contracts and any document into validated JSON or Markdown for RAG and LLM pipelines, with classification, splitting, confidence scores and continuous learning; SOC 2 and ISO 27001.
LlamaParse
LlamaIndex's document parsing API for 130+ file types: PDFs, scans, slides and spreadsheets come back as Markdown, text, JSON or HTML tables, in four tiers from Fast to Agentic Plus. Billed in credits at $1.25 per 1,000, from 1 to 45 credits a page, with 10,000 free credits a month.
Mistral OCR
Mistral's OCR model for document parsing: OCR 4.1 reads PDFs, PPTX, DOCX and images into Markdown page by page, with tables as Markdown or HTML, headers and footers, bounding boxes and confidence scores, in 40+ languages. $4 per 1,000 pages, $5 with structured annotations.
Reducto
Document parsing API for PDFs, scans, spreadsheets and 30+ file types: Parse captures layouts and tables with bounding-box citations, Extract fills your JSON schema, plus Split, Classify and Edit. Parse is $10 per 1,000 pages, with $150 of free usage and VPC or on-prem on Enterprise.