PNG to JSON Converter
Extract text from a PNG image using OCR and download it as JSON. Upload a PNG file with visible text and get back structured JSON data.
Click to upload a PNG image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •OCR works best on clear, high-contrast images with horizontal, printed text - handwriting and skewed photos reduce accuracy
- •The extracted text is preserved both as one block and split into individual lines
- •Recognition runs the Tesseract OCR engine entirely in your browser as a WebAssembly module - the first run downloads the language data
- •Nothing is uploaded to a server - the image and extracted text stay on your device throughout
Most Popular
Most users scan receipts, forms, or screenshots with clear printed text for the most accurate results
When to Use This Tool
Pull text out of a scanned page or photographed document into an editable, structured JSON format.
Skip manual retyping by extracting printed data directly from a screenshot or photo into JSON.
Convert a photographed receipt or form into JSON data for expense tracking or record-keeping.
Turn printed records or reports into searchable, structured JSON files for long-term storage.
How It Works
Read the uploaded PNG file and pass it to the Tesseract OCR engine running as WebAssembly in your browser
Recognize printed text in the image and return it as plain text
Wrap the full text and its individual lines into a structured JSON object
Display the JSON result, ready to copy or download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Tesseract.js OCR engine (WebAssembly) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
How accurate is the text extraction?
Accuracy depends heavily on image quality. Clear, high-resolution photos of printed text in a standard font typically recognize very well, while handwriting, low resolution, skewed angles, or unusual fonts reduce accuracy significantly.
What structure does the output have?
The output is a JSON object with a "text" field containing the full recognized text and a "lines" array with each line as a separate string.
Is my image uploaded to a server?
No. Text recognition runs entirely in your browser using Tesseract.js, a WebAssembly build of the Tesseract OCR engine. Your image and the extracted text never leave your device.
Why does recognition take a few seconds?
The first time you use this tool, your browser downloads the OCR engine and English language data. Recognition itself also takes a moment since it's running a full OCR model locally rather than calling a server.
Can it read handwriting?
Tesseract is optimized for printed text and generally performs poorly on handwriting. For the best results, use clear, printed or typed text.