AI Object Detector

Detect objects in any photo with YOLO AI

🔒 Files never leave your browser

Downloads once · Cached for offline use · Your image never leaves your device

🔒 Your image is processed entirely in your browser using YOLO AI. Nothing is uploaded to any server.

How to Use AI Object Detector

Upload your image

Drag and drop any JPG, PNG, or WebP image onto the tool, or click to browse. The image loads in your browser and is never uploaded to any server.

Load the YOLO model

Click Load YOLO Model to download the 22MB YOLOS-tiny model. It downloads once and is cached by your browser for instant offline use.

View detected objects

Click Detect Objects and the AI draws color-coded bounding boxes around every recognized object with labels and confidence scores. Download the annotated image as PNG.

Why Choose AllTools AI Object Detector?

  • YOLOS-tiny AI detects 80 COCO object categories — people, vehicles, animals, furniture, and more
  • Color-coded bounding boxes with labels and confidence percentages
  • Runs 100% in browser — your image never leaves your device
  • Works offline after first 22MB model download
  • Download annotated image as full-resolution PNG
  • Grouped results list showing object counts per category
  • Inference time displayed for performance benchmarking
  • No account, no subscription, no daily limits

Why Use This Tool

  • Complete privacy — your image never leaves your browser, verifiable in DevTools Network tab
  • Free forever — no API credits, no subscription, no daily limits unlike cloud detection APIs
  • 80 object categories — covers people, vehicles, animals, electronics, furniture, and everyday items
  • Instant results — no upload wait, detection happens locally in 1-5 seconds
  • Zero friction — no account, no signup, no app installation, works on any device

How Browser-Based AI Object Detection Works

Traditional object detection services like Google Vision API or AWS Rekognition require uploading your image to cloud servers where GPUs run detection models. The AllTools AI Object Detector takes a different approach: it runs the YOLOS-tiny model directly in your browser using Transformers.js and ONNX Runtime Web. YOLOS (You Only Look at One Sequence) adapts the Vision Transformer architecture for object detection. The tiny variant is optimized for speed and browser deployment at just 22MB. When you upload an image, it is scaled to a maximum of 1280 pixels, fed through the model, and each detected object receives a bounding box with coordinates, a class label from the 80-category COCO dataset, and a confidence score. The entire pipeline runs locally — no pixel of your image ever leaves your device.

Use Cases for AI Object Detection

AI object detection is valuable across many scenarios. Content moderators scan uploaded images for specific objects or categories. Inventory managers photograph shelves and automatically count products. Accessibility developers generate image descriptions listing detected objects. Security analysts scan surveillance frames for people or vehicles. Educators demonstrate computer vision concepts with interactive examples. E-commerce sellers verify product photos contain the correct items. Photographers organize large image libraries by the objects they contain. Researchers annotate datasets for machine learning training. Because this tool runs locally, it is especially suited for sensitive images — security footage, medical imaging, unreleased products, or personal photos that should never be uploaded to third-party cloud APIs.

Related Resources

Frequently Asked Questions

Is my image uploaded to a server?
No. The YOLOS-tiny model runs entirely in your browser using Transformers.js and ONNX Runtime Web. Your image never leaves your device. Verify this in the Network tab of your browser DevTools.
What objects can it detect?
The model detects 80 COCO object categories including person, car, truck, bicycle, dog, cat, chair, laptop, phone, bottle, book, clock, and many more. It works best with clearly visible objects in well-lit photos.
How accurate is the detection?
YOLOS-tiny is optimized for speed and browser use. It is accurate for common objects in clear photos. For very small objects, cluttered scenes, or unusual angles, some objects may be missed. The 0.4 confidence threshold filters out low-quality detections.
Does it work on mobile phones?
Yes. The tool runs in any modern mobile browser including Chrome and Safari on iOS and Android. The 22MB model downloads once and is cached. Detection may be slower on phones but works.
Is there a limit on image size?
Images are scaled to 1280px max dimension for optimal detection speed. There is no file size limit — the scaling happens automatically in your browser.
What is a confidence score?
The confidence score (0-100%) indicates how certain the AI is about each detection. Higher scores mean the model is more confident the object is correctly identified. Detections below 40% confidence are filtered out.
Can I download the result?
Yes. Click Download Annotated to save the image with all bounding boxes and labels drawn on it as a PNG file.
How is this different from Google Lens?
Google Lens uploads your photo to Google servers for processing. This tool runs YOLOS-tiny locally in your browser — your image stays on your device. No account needed, works offline, and is completely free.

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