Free OCR with no upload: read text from any screenshot or scan

You have a screenshot of an error, a photo of a receipt, or a scanned page, and you need the text out of it. The usual free OCR sites make you upload the image first. For a payslip, an ID, or an internal dashboard, that's a lot of trust to hand a random website just to read a few lines. The good news: modern browsers can do OCR locally, so the image never has to leave your device.

How browser-based OCR works

OCR engines like Tesseract have been compiled to WebAssembly, which runs in your browser at near-native speed. The engine and the language model download once (and then cache), and from that point the recognition happens entirely on your machine. There's no server doing the work, which means there's no server seeing your image.

Read text from any image, privately

Image to Text (OCR) does this. Drop in a screenshot, scan or photo and it extracts the text in your browser, shows a confidence score, and lets you copy it or download a .txt. You can verify the privacy claim yourself: open your browser's Network tab while it runs and watch that your image is never sent anywhere. It works offline after the first load, too.

Tips for better accuracy

• Higher resolution helps. A crisp screenshot beats a blurry phone photo.
• Straighten and crop. Skewed or cluttered images confuse the recognizer; crop to just the text.
• Good contrast. Dark text on a light background reads most reliably.

Then use the text

Once you have the text, it's ready to paste into ChatGPT or Claude, drop into your notes, or feed into a wider pipeline. If you're prepping it for an LLM, our guide on getting text ready for ChatGPT and Claude covers the next steps, counting tokens, trimming to fit, and redacting anything sensitive, all in the browser as well.