UD5 Toolkit
GIF Optimizer - Online Reduce Size with Color Quantizer
Reduce GIF file size by lowering color count and removing duplicate frames. See side‑by‑side preview. All local.
High Quality Video to GIF - Online Optimized Converter
Video to GIF Converter
Create high‑quality, optimized GIFs from your videos – no upload, all processing happens in your browser.
Drag & drop your video here
or click to browse (MP4, WebM)
Video Preview
GIF Settings
Aspect ratio is locked by default.
Duration: 5.0 seconds
Processing frames, please wait...
Frequently Asked Questions
The tool runs entirely in your browser. It extracts frames from your uploaded video using HTML5 video and canvas, then encodes them into an optimized GIF using the gifshot library. No data is ever sent to a server, ensuring privacy and security.
We recommend MP4 (H.264) and WebM formats for best compatibility across modern browsers. Some MOV and AVI files may also work, depending on your browser’s codec support. If the video doesn't load, try converting it to MP4 first.
Lower the frame rate (e.g., 10 fps), reduce the output dimensions, choose a shorter clip, and select a lower quality setting. Our “Medium” quality provides an excellent balance between size and visual clarity.
Absolutely. Use the “Crop Segment” fields to set a start and end time (in seconds). The converter will only process the frames within that interval, helping you trim unwanted sections and reduce output size.
No. There are absolutely no watermarks. All processing happens locally in your browser; we never touch your files.
By default, GIFs generated with this tool are set to loop infinitely. You can test this in any modern image viewer or browser.
GIFs are limited to 256 colors. Very detailed or colorful videos may appear grainy. Try resizing to a smaller dimension or choosing a clip with less motion for best results.
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.
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.
Image Compression Comparator - Online JPEG vs WebP Preview
Compare original and compressed image side‑by‑side with a slider. Choose format and quality level. Local processing.
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.
Online Video Format Converter - MP4, WebM, AVI in Browser
Convert video files between common formats using FFmpeg WASM. No upload required; all processing stays in your browser.
WebP Quality Comparator - Online vs JPEG & PNG
Compare your image as JPEG, PNG, and WebP side by side at different quality levels. See the size savings visually.
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 to WebP Converter - Online Bulk Optimize
Convert images to WebP format with configurable quality. See file size savings. Batch process multiple files. All local.
Next‑Gen Image Format Comparator - Online AVIF vs WebP vs JPEG XL
Upload one image and see it encoded in AVIF, WebP, and JPEG XL side‑by‑side. Compare quality and file size in your browser.
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.
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.
WebCodecs Video Frame Reader - Online Decode & Display
Decode individual video frames from a local file using the VideoDecoder API. Step through frames. Cutting‑edge browser feature.
Instant Image Slideshow - Online Local Photo Player
Select a folder of images and start a full‑screen slideshow right in your browser. Adjust interval and transition. No upload.
image‑rendering CSS Demo - Online Crisp or Smooth
Toggle image‑rendering: auto, pixelated, crisp‑edges on a scaled image. Essential for pixel art display.
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.
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.
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.
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 to Pixel HTML Table - Online Giant Pixel Art
Downscale an image to a grid of colored `<td>` cells. Create a huge HTML pixel art. Copy the code.
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 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 vs. SVG Weight Comparator - Online Byte‑for‑Byte
Paste a raster image and an SVG, see the file size and rendering time. Understand when to use vector. Local.
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 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.
Color to CIELAB Converter - Online Perceptual Space
Convert hex or RGB to CIELAB L*a*b* values. Understand perceptual lightness and color opponents. Local math.
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.
RGB to CIELAB Converter - Online Perceptual Color Space
Convert RGB and hex colors to CIELAB L*a*b* values. Understand perceptual lightness and chromaticity. All local math.
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.
Responsive Images srcset Generator - Online
Upload multiple sizes of the same image and generate the complete srcset and sizes attributes. For perfect responsive performance.