Tools
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Tool
Image to SVG
— Convert raster images to scalable vector graphics using automated tracing technology. Upload a JPG or PNG image by dragging it onto the drop zone or clicking to browse, and the application will generate an SVG representation that can be viewed and copied. The conversion process uses imagetracerjs to intelligently trace image edges and create vector paths suitable for scaling to any size without quality loss.
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SVG to JPEG/PNG
— Convert SVG images to JPEG or PNG format with customizable dimensions, padding, and background colors. The tool allows you to paste SVG code directly, upload SVG files via drag-and-drop, or load SVG images from URLs, then instantly previews the converted result and provides download and base64 embedding options. URL hashes preserve your work for easy sharing and recovery.
Tool
MapLibre GL + OpenFreeMap demo
— Explore an interactive map of San Francisco rendered with MapLibre GL and OpenFreeMap tiles, displaying 1000 randomly distributed markers across the city. The demo showcases three different approaches for rendering large numbers of points—scaled markers, custom HTML elements, and GeoJSON circle layers—with the map automatically adjusted to fit all markers in view. Users can interact with the tilted 3D map to navigate and explore the marker distribution across the San Francisco area.
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User Agent
— Display your browser's user agent string, which contains information about your web browser, operating system, and device. This identifier is sent with every HTTP request your browser makes and helps websites understand how to optimize their content for your specific platform and browser version.
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Markdown and Math Live Renderer
— Render Markdown text with integrated LaTeX mathematical equations in real-time as you type. This tool converts your input into formatted HTML output while simultaneously displaying a live preview with properly rendered math expressions using KaTeX. You can view the generated HTML code and copy it to your clipboard for use in other projects.
Tool
GitHub API File/Image Writer
— Upload files and images to GitHub repositories using the GitHub API. This tool accepts either text content or image files and commits them to a specified repository path with proper authentication via personal access tokens. The interface automatically adapts to show relevant input fields based on whether you're uploading text or an image file.
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Image Token Calculator
— Calculate the token cost for images used in API requests by uploading or dragging an image file into the tool. The calculator analyzes the image dimensions and divides them into 224-pixel tiles, multiplying the total tile count by 1,000 to determine the token expense. This helps estimate costs when working with vision-based APIs that charge per image token.
Tool
YouTube Thumbnail Viewer
— View YouTube video thumbnails in multiple resolutions by entering a video URL or ID. This tool extracts and displays all available thumbnail formats from YouTube's image server, allowing you to preview different quality options and copy direct image links. Click on any thumbnail to expand it for a closer look, and use the copy button to save the image URL to your clipboard.
Tool
Pomodoro Timer
— Track productivity sessions with this Pomodoro timer application that manages timed work intervals with customizable durations. Set a goal for each session, choose from preset time intervals ranging from 5 to 60 minutes, and pause or resume as needed while the timer counts down. All session data including start times, end times, and pause history is automatically saved and displayed in a detailed log table, with the ability to export the data as JSON for further analysis or record-keeping.
Tool
Gemini Chat App
— Chat with Google's Gemini AI models directly in your browser using this interactive chat application. Simply enter your Gemini API key (stored locally for convenience) and select from multiple available models including Gemini 2.5 Flash, Pro, and various other versions to power your conversations. The app displays real-time streaming responses, tracks API usage metrics, and measures response duration to help you monitor your interactions.
Tool
Gemini API Image Bounding Box Visualization
— Analyze images using the Google Gemini API and visualize detected objects as bounding boxes or points overlaid on the original image with coordinate grid lines. The tool supports multiple Gemini model versions and can extract either bounding box coordinates in normalized format or point locations with labels, displaying the results alongside a detailed visualization canvas. Store your API key locally for convenient access across multiple sessions.
Tool
TIFF Orientation Reader
— Read TIFF orientation metadata from JPEG images by uploading or dragging files into the drop zone. The tool parses the EXIF data embedded in the image file to extract the orientation tag, which indicates how the image should be displayed (normal, rotated 90° clockwise, rotated 180°, or rotated 270° clockwise). Debug information shows the file analysis process, including EXIF location, endianness detection, and TIFF header validation.
Tool
Audio Spectrum Visualizer
— Visualize real-time audio frequency data from your microphone as an animated spectrum display. This application uses the Web Audio API to capture microphone input, analyze frequencies using FFT (Fast Fourier Transform), and render dynamic bars that respond to sound levels across the frequency spectrum. Grant microphone permissions when prompted to begin the visualization.
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Image resize, crop, and quality comparison
— Compare images at different sizes and quality levels by uploading a photo, defining a crop area, and generating multiple preview versions with varying dimensions and compression settings. The tool displays file sizes for each variant and allows interactive toggling between normal and full-width viewing modes, as well as direct downloads. Transparency detection automatically reveals a background color picker when needed for images with alpha channels.
Tool
EXIF Data Viewer
— Extract EXIF metadata and GPS coordinates from uploaded images using this viewer. Simply upload or drag-and-drop an image file to instantly display all embedded EXIF data, including GPS latitude and longitude if available. The tool supports common image formats such as JPEG, PNG, and HEIC.
Tool
Box shadow CSS generator
— Generate custom CSS box-shadow effects with interactive controls and real-time preview. Adjust horizontal and vertical offsets, blur radius, spread radius, color, and opacity using intuitive sliders and color picker to visualize shadow changes instantly. Copy the generated CSS code directly to your clipboard for immediate use in your stylesheets.
Tool
Timezone Meeting Planner
— Plan meetings across multiple time zones by selecting two locations and viewing their local times side-by-side. The comparison table displays 48 consecutive hours of UTC times with corresponding local times for each timezone, making it easy to identify overlapping working hours. Your timezone selections are automatically saved in the URL for convenient sharing and bookmarking.
Tool
Chrome LanguageModel Playground
— Interact with Chrome's built-in language model API through this web-based playground interface. The application allows users to check model availability, download the model if needed, and execute text prompts to generate responses directly in the browser. A persistent history feature maintains records of previous prompts and responses for easy reference.
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Compare PDFs
— Compare two PDF documents side-by-side to identify differences between them. Upload or drag and drop two PDF files to view their pages rendered as images, with a third panel highlighting any pixel-level differences in red. This tool is useful for detecting changes between document versions, comparing drafts, or verifying document modifications.
Tool
Language Model Elo Ratings
— Compare Elo ratings across different language models and dates using this interactive animated bar chart. Load your own JSON data with model names, dates, and Elo scores, then watch the rankings evolve over time with customizable animation speed. The visualization displays the top 20 models at each time point, making it easy to track performance trends and competitive dynamics in the AI landscape.
Tool
CSV marker map - use ?csv=URL to CSV to populate
— View CSV data as markers on an interactive map using the `?csv=URL` parameter to specify a CSV file containing latitude and longitude columns. The map supports additional customization through query parameters including `center` to set the initial location, `zoom` for zoom level, `color` to change marker color, and `marker` to add individual points. Map position and zoom level are automatically saved to the URL bar as you navigate, allowing you to share your current view with others.
Tool
Render Markdown
— Convert Markdown text to HTML using GitHub's official Markdown API, with options to render standard Markdown or GitHub Flavored Markdown (GFM). The tool displays a live preview of the rendered content, automatically generates a table of contents for headings, and provides the raw HTML output for copying, while also offering cleanup options to remove GitHub-specific formatting artifacts.
Tool
OCR PDFs and images directly in your browser
— Extract text from PDF documents and images using optical character recognition (OCR) directly in your browser. The tool leverages Tesseract.js for text recognition and PDF.js to handle multi-page PDF files, supporting multiple languages and file formats including JPEG, PNG, and GIF. All processing occurs locally in your browser with no files being transmitted to external servers.
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