OCR.Space API alternatives

OCR text extraction from images and PDFs with a free tier. If it doesn't fit your project, here are the 10 best free Documents & Productivity APIs to use instead in 2026, out of 51 in the directory.

For reference, OCR.Space API: HTTPS.

1. 1D

   DocStruct API

   Online · 190 ms

   AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV.

   • No API key needed
   • Fast: 190 ms response
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   TeamSort API

   Online · 988 ms

   Create a ranked-choice poll from a text prompt and get a shareable link.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3A

   AgentPay Doc Tools API

   Online · 657 ms

   PDF to text, RSS/Atom/JSON feeds to JSON and sitemaps to URL lists, paid per call via x402.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   BuildPDF API

   Online · 902 ms

   Convert HTML, images, and text to PDF.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
5. 5

   CloudConvert API

   Online · 401 ms

   Online file converter for audio, video, document, ebook, archive, image, spreadsheet, presentation.

   • Returns JSON at its URL
   • HTTPS

   apiKeyHTTPSCORS ?
6. 6

   Cloudmersive Document and Data Conversion API

   Online · 996 ms

   HTML/URL to PDF/PNG, Office documents to PDF, image conversion.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
7. 7

   DocCheap API

   Online · 609 ms

   Read passports, ID cards and driver's licences into JSON, $0.01 per recognised document.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
8. 8

   iLovePDF API

   Online · 490 ms

   Convert, merge, split, extract text and add page numbers for PDFs. Free for 250 documents/month.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
9. 9

   Renderly API

   Online · 824 ms

   HTML to PDF conversion API built on Chromium.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
10. 10

    staffSign API

    Online · 1184 ms

    Digital employment contract API with QES/eIDAS support for HR and staffing.

    • Callable from the browser (CORS)
    • HTTPS

    apiKeyHTTPSCORS

OCR.Space API vs alternatives

OCR.Space API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
OCR.Space	Required	Yes	Unknown	Up	586 ms	Not rated
DDocStruct	No	Yes	Yes	Up	190 ms	Not rated
TeamSort	No	Yes	Yes	Up	988 ms	Not rated
AAgentPay Doc Tools	No	Yes	Yes	Up	657 ms	Not rated
BuildPDF	Required	Yes	Yes	Up	902 ms	Not rated
CloudConvert	Required	Yes	Unknown	Up	401 ms	Not rated
Cloudmersive Document and Data Conversion	Required	Yes	Yes	Up	996 ms	Not rated
DocCheap	Required	Yes	Yes	Up	609 ms	Not rated
iLovePDF	Required	Yes	Yes	Up	490 ms	Not rated

See also: best Documents & Productivity APIs · all Documents & Productivity APIs