UD5 Toolkit
Image Cropper - Online Crop Photo Circle & Rectangle
Crop images into rectangular or circular shapes with interactive handles. Output as PNG or JPEG. A simple, browser-based tool with no uploads required.
Image Auto Crop Tool - Online Remove White Borders
Image Auto Crop Tool
Remove white borders automatically — free, fast, and completely browser-based.
Drag & drop your image or click to upload. No data leaves your device.
Drop your image here
JPG, PNG, WEBP, BMP, GIF (max 25MB)
Original
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Cropped
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Frequently Asked Questions
An auto crop tool automatically detects solid-colored borders (like white or transparent margins) around your image and removes them, saving you from manual cropping.
The tool scans the pixels from each edge inward, stopping when it finds a pixel that differs from the chosen border color (by more than the tolerance). Everything outside that boundary is trimmed off.
No. All processing happens directly inside your browser using JavaScript and the Canvas API. Your image never leaves your device.
JPG, PNG, WEBP, BMP, and GIF. For best results with transparent borders, use PNG or WEBP. The cropped result is always downloaded as a high-quality PNG to preserve any transparency.
Yes! Use the "Border Color" dropdown to select White/Transparent, Black, or a custom color. The tool will then crop that specific color (and similar shades within the tolerance).
Tolerance controls how strictly the tool matches the border color. A lower value removes only exact matches; a higher value allows slight variations (e.g., off-white, shadows) to be treated as part of the border.
No. The cropped area is extracted at full original resolution. You get a perfect 1:1 copy of that portion without any recompression or quality loss (saved as lossless PNG).
If the tool doesn't detect any border matching your settings (e.g., the image already has content touching all edges), the cropped version will be identical to the original.
Yes, completely free. There are no usage limits, watermarks, or hidden fees.
Absolutely. The interface is responsive and touch-friendly. You can upload, adjust settings, and download directly from your phone or tablet.
Image Resize & Pad - Online Fit Without Cropping
Resize an image to exact dimensions and add colored padding to fill the aspect ratio without cropping. Useful for profile grids.
Online Image Cropper by URL - Remote Image Edit
Enter an image URL, crop it interactively, and download the result. No upload. Works with any CORS‑enabled image.
Image Pixelator - Online Censor & Mosaic Effect Tool
Pixelate or censor parts of an image by dragging. Adjust block size for mosaic effect. Useful for hiding faces or sensitive data. Client-side processing.
Image Strip Joiner - Online Combine Side by Side
Glue multiple images together horizontally or vertically into one long strip. Perfect for sharing comparisons. Local.
Online Video Resizer - Crop & Scale Locally
Resize a video by cropping to a new aspect ratio or scaling up/down. Apply and download the result. Browser‑based.
Image Edge Detector - Online Sobel & Canny Filter
Run edge detection algorithms (Sobel, basic Canny) on images directly in the browser. Great for learning computer vision concepts.
Auto Image Enhancer - Online One‑Click Photo Fix
Automatically adjust brightness, contrast, and saturation of a photo. Click to enhance and download. Canvas‑based.
Image Resizer - Online Bulk Photo Resize Without Upload
Resize images directly in your browser by width, height, or percentage. Maintain aspect ratio and download the result. Images never leave your computer.
Image Compressor - Online Optimize JPEG & PNG Locally
Compress images while preserving quality. Adjust compression level and preview output size. All processing is done client-side for fast and secure optimization.
Image Color Extractor - Online Palette from Picture
Upload an image and extract its dominant colors or full color palette. Download as a CSS snippet or color swatch. Entirely client-side, your images stay private.
Image Format Converter - Online PNG to JPEG & More
Convert images between popular formats like PNG, JPEG, WEBP, and BMP. No quality loss on conversion when using lossless formats. Private and fast.
Images to PDF Merger - Online Combine JPG/PNG into One
Select multiple images, arrange their order, and merge them into a single PDF document. Works offline in your browser.
Image to CSS Grid Layout - Online Pixel‑Based Generator
Upload a small pixel art image and get a CSS grid layout that recreates it using divs. Novelty developer tool.
Web Image Size Calculator - Online KB & Dimensions Tool
Predict the file size of an image based on pixel dimensions and format (JPEG, PNG, WebP). Rough estimate. Local.
Batch PNG to WebP Converter - Online Optimize Images
Convert multiple PNGs to WebP format at once. Adjust quality and see size reduction. All processing local and private.
Images to PDF Merging - Online Combine & Order
Combine JPGs and PNGs into a single PDF. Drag to reorder pages. All processing happens locally; your files never leave your device.
Pixel Art Coloring Book – Online Click to Fill Grid Cells
Choose a pre-drawn pixel outline and fill cells with colors. Save your masterpiece. Meditative fun.
shape‑margin & shape‑image‑threshold Tester
Wrap text around an irregular shape and adjust the margin and alpha threshold. Magazines layout on the web.
Pixel Sorter Effect - Online Glitch Art Generator
Apply a pixel sorting glitch effect to your photo. Sort pixels by brightness, hue, or saturation. Create abstract art. Canvas.
Pixel Sharp Image Upscaler - Online Nearest‑Neighbour Enlarge
Enlarge pixel art or low‑res images without blur. Choose 2x, 4x, 8x. Perfect for sprites. Download scaled PNG.
Image Difference Checker - Online Visual Compare
Upload two images and see a diff overlay highlighting the pixel differences. Adjust tolerance. For regression testing.
Extract Color Palette from Image URL - Online Without Upload
Enter an image URL to extract a 5-color dominant palette. Avoids uploading files. Uses canvas to read remote image pixels. Fast and privacy-oriented.
Image to WebP Converter - Online Bulk Optimize
Convert images to WebP format with configurable quality. See file size savings. Batch process multiple files. All local.
Pixel Art Upscaler - Online Nearest‑Neighbour Enlarge
Enlarge pixel art or low‑res images without blur. Choose 2x, 4x, 8x. Perfect for sprites. Download scaled PNG.
Image Aspect Ratio Fitter - Online Resize to Exact Fit
Resize and crop an image to a specific aspect ratio (1:1, 16:9…) with automatic fit/cover. Download the perfect image.
JPEG Quality Visual Comparator - Online Side‑by‑Side
Upload an image and see a slider comparison of different JPEG quality levels. Find the optimal file size vs. quality trade‑off.
JPEG EXIF Remover - Online Strip Metadata for Privacy
Remove all EXIF data (GPS, camera info) from a JPEG before uploading. Processed locally. Protect your privacy.
Web Worker Image Filter - Online Heavy Processing Demo
Apply a convolution filter (blur, sharpen) using a Web Worker. See the UI stay responsive while processing. Learn multithreading in the browser.
Word Cloud Image Maker - Online Vector Export
Paste text and generate a word cloud as a downloadable PNG image. Customize colors and shapes. All local.