OCR Engine Research
Compare different OCR engines — On-Device vs Cloud-Based
Upload a file or snap a photo. Test how different OCR services perform and choose what works best for your use case.
Tesseract.js
Runs entirely in your browser. Images are processed locally and never leave your device — ideal for confidential documents.
OCR.space
Cloud-based OCR service. Images are sent to their servers for processing. Free tier available with rate limits.
Google Vision API
Enterprise-grade cloud OCR. Images are sent to Google servers. Higher accuracy, requires API key with billing enabled.
On mobile, this can open the rear camera directly.
Get free key at console.cloud.google.com (1,000/mo)
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Extracted text
Recognition status
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