XML Sitemap Generator - Online Free Website Sitemap Builder
Generate a standard XML sitemap for your website by entering a start URL. Crawls internal links directly from your browser. No server-side processing.
UD5 Toolkit
Generate a standard XML sitemap for your website by entering a start URL. Crawls internal links directly from your browser. No server-side processing.
Build a vertical timeline by entering events with dates and descriptions. Export as image or HTML. Perfect for project milestones.
Enter a URL to see exactly what Open Graph and Twitter card tags will be shown when shared on social media. Fetch from browser.
Get the approximate magnetic declination for a given latitude and longitude. Apply correction to your compass.
Fill in says, thinks, does, feels quadrants for a user persona. Save locally or print.
Track daily mood with emoji selection and optional notes. See weekly/monthly mood trends in a color-coded chart. All data stored privately in localStorage.
Connect a MIDI controller and see every message in a log. Filter by channel and type. Essential for debugging music apps.
Paste lyrics and tap while the song plays to embed timestamps. Export as .lrc file for music players. All in browser.
Upload a WebP image and automatically generate a <picture> tag with JPEG/PNG fallback. Ensure compatibility everywhere.
See how to implement file upload progress using both fetch and XHR. Real‑time bar and code snippets for your project.
Paste XML sitemap content and extract all <loc> URLs into a clean list. Useful for auditing. Local parsing only.
Connect your MIDI keyboard and see pressed notes visually on a piano roll. Check velocity, channel, and aftertouch. No DAW needed.
Write Mermaid markdown and instantly see the rendered flowchart, sequence diagram, or Gantt chart. Copy SVG output. Browser-side rendering.
Enter RGB values row by row and create a tiny BMP file. Understanding bitmap headers. Geeky developer tool.
Create a basic Open Graph image with a title, background color, and logo. Download as PNG. Perfect for small sites.
Generate a palette of N colors that are maximally distinguishable for common color vision deficiencies. Copy the hex codes.
Combine multiple static images into a single animated GIF. Adjust frame delay and order. No upload, in‑browser encoding.
Parse a Snowflake ID (used by Discord, Twitter) into its timestamp, worker, and sequence components. Instant local decoding.
Draw a line along the horizon and the tool rotates the image to make it perfectly level. Small rotation. Canvas editing.
Add a realistic water ripple or heat haze distortion to your image. Download the warped photo. Canvas manipulation.
Paste HTML and extract all unique data‑* attributes into a clean list. Understand the data model of a page.
Upload a photo and turn it into an optimized Open Graph image with title overlay. Perfect for blog social shares. Canvas.
Real‑time frequency spectrum from your microphone. Visual bars or line. Check room resonance.
Upload an image and see its 2D FFT magnitude and phase. Learn how image filtering works. Educatinal tool. Canvas.
Visualize audio in real time from your microphone or uploaded audio file. See the waveform dance. Uses Web Audio API locally.
See how revert‑layer removes styles from the current cascade layer and falls back to the previous one. Fix specificity wars.
Play an audio file or use mic to see real‑time frequency bars. Choose colors. Great for music videos. Canvas.
Create and dispatch custom events with detail. Listen on other elements. Understand pub/sub pattern in vanilla JS.
Convert a JSON array of strings or numbers into a single‑column CSV. Quick data dump. Local.
Paste HTML or URL to extract canonical link tag. Verify self-referencing. Simple SEO audit step. Local only.