Free browser tool

Barcode reader

Detect and read supported barcodes from an image using browser APIs.

Input and settings

How to use and what to check

Read a barcode from an image in your browser and show the detected format and raw value as text.

Choose an image that contains a barcode.
Run the reader. If the browser can detect the code, the format and raw value are listed.
Check the value against the image before using or copying it.

Input: One image file
Output: Detected format + raw value; downloadable text

Browser support can affect whether a barcode is detected

A product-label photo → run the reader → check a line such as “ean_13: 490…”.

If the reader says barcode scanning is unavailable, try a current Chrome or Edge browser. If support is available but detection fails, crop closer to the code and use a sharper, glare-free image.

A clear crop often matters more than a huge image

Barcode detection can fail when the code occupies only a tiny part of a photo, is heavily blurred, or has strong glare. Cropping closer to the code before reading is often more useful than simply increasing the image dimensions.

The format name is useful context, not just decoration

The result includes both the detected format and its raw value. That distinction helps when the same-looking string could have come from QR, EAN, Code 128, or another symbology, especially when you are checking labels or test images.

A “not detected” result does not prove there is no code

Browser support, focus, contrast, perspective and damage can all affect detection. For an important barcode, try a cleaner image or another compatible browser before concluding that the code itself is invalid.

For example

If a shipping-label photo contains several printed elements, crop around the barcode first, run the reader, then compare the returned value with the human-readable number printed below the bars. That quick cross-check catches many photo-reading mistakes.