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CrateX.app

Barcode Decoder

Barcode decoder for PNG, JPEG, WebP, AVIF, HEIC, and HEIF images, supporting one or more barcodes across EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Data Matrix, PDF 417, and Aztec with stable top-left to bottom-right ordering.

Upload image

Drop an image here or click to upload

Supports PNG / JPEG / WebP / AVIF / HEIC / HEIF (no GIF / BMP / TIFF / PDF, and QR is not included)

File count

0 / 1

Total size

0 bytes / 50 MB

Single-file limit

50 MB

Decode results

0 result(s)

Upload an image and run decoding to view results.
Barcode Decoder

Quick Start

1
Upload an image: drag and drop or click to select. Supports PNG / JPEG / WebP / AVIF / HEIC / HEIF.
2
Start decoding: click "Decode barcodes" to parse barcodes in the current image.
3
Review results: check decoded text, barcode format, and position for each detected result.
4
Copy one: use the "Copy" button on each result item.
5
Copy all: use "Copy all" to copy every decoded result in one click.
6
Retry decoding: replace the image or clear and run again.

Common Scenarios

Packaging and label QA

verify barcode content on product labels, shipping stickers, or printed materials.

Single-image multi-code check

decode multiple barcodes in one image and verify item by item.

Code audit

verify encoded values such as batch IDs, serial numbers, and order references.

Archive extraction

extract barcode content from screenshots, label photos, or scanned document images into copyable text.

Supported & Unsupported Barcode Matrix

Supported 1D barcodes: EAN-13, EAN-8, UPC-A, UPC-E, Code 128, and Code 39.
Supported 2D barcode formats: Data Matrix, PDF 417, and Aztec.
Input boundary: upload one PNG, JPEG, WebP, AVIF, HEIC, or HEIF image at a time.
Not supported here: QR codes, live camera scanning, GIF, BMP, TIFF, PDF, multi-image batch upload, and result file export.
Best fit: product labels, shipping stickers, tickets, asset tags, and screenshots where barcode edges remain visible.

Detection capabilities

Single-image flow: upload one image at a time; one or multiple barcodes can be decoded from it.
Stable ordering: multi-barcode results are sorted from top-left to bottom-right, not by random detection timing.
Position hint: each result includes top/left/width/height so label, ticket, and shipping-sticker reviews can be cross-checked against the source image.
Format badge: shows the detected barcode type. Current support includes EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Data Matrix, PDF 417, and Aztec.

Barcode Image Quality Checklist

Use a sharp label or packaging photo; keep bars, modules, and printed digits large enough before upload.
Keep the quiet zone visible around the barcode; cropped bars or missing margins often prevent detection.
For glare, curved labels, wrinkled stickers, poor contrast, or partial occlusion, crop the barcode region first and retry.
HEIC/HEIF files are preprocessed locally in the browser before decoding, so they may take longer than JPEG/PNG.
After decoding, spot-check critical identifiers such as GTINs, SKUs, batch IDs, serial numbers, order IDs, and check digits.

Limitations & Compatibility

This is an image-based workflow and does not include live camera scanning.
GIF input is not supported (including animated GIF). Convert to PNG/JPEG/WebP first.
BMP/TIFF/PDF input is currently not supported.
Only one image is processed at a time; multi-image batch upload is not supported.
Severe blur, heavy perspective distortion, or large occlusion may cause decode failures.

Privacy & Security

All processing happens locally in your browser. You can replace, clear, and decode again at any time.
If barcode content is sensitive, use this tool on a trusted device and network.
Before copying, exporting, or sharing decoded results, verify critical values to avoid mistakes or misuse.

FAQ

4

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All tool processing happens locally in your browser.