UD5 Toolkit
QR Code Scanner from Camera - Online Live Decode in Browser
Scan QR codes using your device camera. Decodes text, URLs, and Wi‑Fi credentials directly in the browser. No data sent to server.
Live Barcode/QR Scanner - Online Camera Decoder
Live Barcode & QR Scanner
Point your camera at any barcode or QR code to decode instantly
Camera Ready
Click Start Scan to activate your camera. Works best in good lighting.
Scan Result
--
Waiting for scan...
Upload Image for Decoding
Drag & drop or click to browse – JPG, PNG, GIF, WEBP
Scan History
No scan history yet
Frequently Asked Questions
How does the live barcode scanner work?
This tool uses your device's camera and the HTML5-QRCode library (powered by ZXing) to detect and decode barcodes and QR codes in real time. All processing happens locally in your browser — no images are ever uploaded to any server, ensuring complete privacy.
What barcode formats are supported?
We support QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, Codabar, ITF, Data Matrix, PDF 417, Aztec, MaxiCode, RSS-14, and RSS Expanded. You can filter specific formats using the dropdown above for faster, more accurate scanning.
Why isn't my camera working?
Please ensure you've granted camera permission when prompted by your browser. Also check that no other application is using the camera. This tool requires HTTPS or localhost to access the camera (a browser security requirement). Try switching cameras using the Flip button if available.
Is my data secure when using this online scanner?
Absolutely. All scanning is performed 100% client-side within your browser. No video feed, images, or scanned data ever leaves your device. You can even disconnect from the internet after the page loads and scanning will continue to work perfectly offline.
Can I scan from an image file instead of the camera?
Yes! Use the Upload Image area on the right. Drag and drop or click to select any image file (JPG, PNG, GIF, WEBP) containing a barcode or QR code. The decoder will extract the data instantly.
What's the difference between 1D and 2D barcodes?
1D barcodes (like UPC-A, EAN-13, Code 128) are linear — they store data in parallel lines of varying width. They typically hold 20–30 characters. 2D barcodes (like QR codes, Data Matrix) use patterns of squares/dots and can store thousands of characters, including URLs, text, and contact info.
How can I improve scanning accuracy?
For best results: (1) Ensure good, even lighting on the code. (2) Hold the camera steady and fill the scan frame with the code. (3) Avoid glare and reflections. (4) Clean your camera lens. (5) Select the specific barcode format from the dropdown for faster decoding.
Does this work on mobile devices and all browsers?
Yes! This scanner works on iOS Safari, Android Chrome, Firefox, Edge, and desktop browsers that support the MediaDevices API. On mobile, the rear camera is used by default for optimal scanning. The interface is fully responsive and adapts to any screen size.
Barcode Knowledge Base
QR Code – URLs, text, WiFi, vCards
EAN-13 – Retail products (Global)
UPC-A – Retail products (US/Canada)
Code 128 – Logistics & shipping
Code 39 – Automotive & defense
Data Matrix – Small item marking
PDF 417 – ID cards & transport
Aztec – Travel tickets & boarding passes
QR Code Scanner - Online Scan QR from Camera or Image
Scan QR codes using your device camera or by uploading an image. Instant decoding of URLs, texts, and more. No data sent to server, pure browser processing.
QR Code Scanner (Upload Image) - Online Decode from File
Upload an image containing a QR code and decode its content. Works offline using JavaScript QR decoder. No camera needed.
QR Code from Camera Snapshot - Online Freeze & Decode
Freeze your live camera, then scan a QR code from the static frame. Works when auto‑scan fails. Private.
Barcode Scanner Simulator – Online Enter Number & Visualize
Type a UPC or EAN number and see how a laser scanner would identify it, plus check digit validation.
Wi‑Fi QR Code Generator (Advanced) - Online WPA3 & Hidden
Generate a Wi‑Fi QR code with full options: WPA3, hidden network, and EAP. Download as SVG. All local.
Wi‑Fi QR Code Generator - Online Join Network Scan
Create a QR code that lets people connect to your Wi‑Fi without typing a password. Just scan and join. Secure local.
QR Code Text Generator - Online Free Form Code
Generate a QR code from any text, URL, or contact details. Save as PNG, SVG, or copy to clipboard. All local.
Morse Code to Text Translator - Online Decoder
Paste Morse code (dots and dashes) and translate it back to plain English text. Supports standard timing. Local.
Live Image Trace - Online Adjust Threshold to Vector
Adjust a brightness threshold slider and see the live vector trace of an image. Export as SVG. Potrace‑style.
Image to AVIF Converter - Online Next‑Gen Compression
Encode images to the modern AVIF format with lossless or lossy compression. See the quality/size trade‑off. Local WASM.
Image Steganography Encoder - Online Hide Text in Picture Pixels
Hide a secret message within an image by modifying LSB of pixels. Also decode. Pure canvas manipulation, local only. Fun privacy tool.
Slit‑Scan Effect - Online Distort Photo with Time Shift
Create a trippy slit‑scan effect from any image. Simulates the famous photographic technique. Adjust direction and width.
SMD Resistor Code Decoder - Online 3-Digit & EIA-96 Markings
Decode SMD resistor markings (3-digit, 4-digit, EIA-96) to resistance value. Enter code and get ohms instantly. Handy for PCB repair.
Morse Code Speed Tapping Game – Online Decode & Type Race
Morse characters flash on screen; you must tap them correctly on a single button. Points for accuracy and speed. Learn Morse in a fun way.
Barometric Pressure Analyzer - Online Live Weather Prediction
If your device has a barometer, read the pressure and see trend analysis for short-term weather prediction. Fully local sensor access.
Bidirectional Text Analyzer - Online RTL/LTR Detection
Paste text with mixed Arabic/Hebrew and English. See the Unicode bidi class of each character and ordering. i18n debugger.
PGP Message Viewer - Online Decode & Inspect
Paste an ASCII‑armored PGP message and view its packet structure. See the encrypted/plaintext blocks without decrypting.
Exposure Triangle Simulator – Online ISO, Aperture, Shutter
Adjust ISO, f‑stop, shutter speed and see a simulated image brightness and depth of field effect. Learn manual mode.
Image Brightness & Contrast Slider - Online Photo Tune
Quickly adjust the brightness and contrast of an image with live preview sliders. Download the tuned photo. Canvas.
Image Text Extractor (OCR) - Online Copy Text from Image
Extract text from images using basic OCR technology. Works best with clear, printed fonts. Completely local, images never leave your browser for privacy.
Image Compression Visualizer - Online Before/After Slider
Drag a slider to compare your original image with a compressed version (e.g., WebP). See the quality difference and file size savings.
Body Measurement Tracker - Online Fitness Progress Logger
Log neck, chest, waist, hip, and limb measurements over time. See changes on a chart. All data stored locally.
Mosaic Pixel Art from Image - Online 8‑Bit Style Converter
Turn any photo into a mosaic of colored blocks or pixel art. Choose block size and palette. Download as PNG. Pure canvas.
APCA Contrast Checker - Online New Accessible Perceptual Contrast
Check the Accessible Perceptual Contrast Algorithm (APCA) ratio. The next‑generation contrast method for WCAG 3.
Live Site Contrast Checker - Online Audit By URL
Enter a URL and fetch its text/background colors to perform a bulk contrast check. See warnings for WCAG violations.
GIF Frame Extractor - Online Split Animated GIF into PNGs
Upload an animated GIF and download every single frame as a separate PNG image. See frame delays and total count. Entirely local.
Audio/Video Snippet Recorder - Online Temporary Share
Record a short audio or video snippet and get a shareable link (stored locally in browser, no server). For quick feedback.
Text to Binary & Binary to Text Converter - Online Translator
Convert text into binary digits and decode binary back to readable text. Handy for education and computer science. All conversions performed locally in your browser.
Hurricane Shutter Prep List – Online Window Measurement & Track
Record measurements for each window and generate a cutting list for plywood or track inventory of metal shutters. Print and store.