Photo Mosaic Generator - Online Tile a Big Picture from Small
Upload a main image and a folder of tile images, and the tool creates a photomosaic. Rendered in canvas. All local.
UD5 Toolkit
Upload a main image and a folder of tile images, and the tool creates a photomosaic. Rendered in canvas. All local.
Drag and drop light sources, camera, and subject to plan a photo shoot. Export diagram as image. Simple and visual.
Click a letter and watch an animated stroke order for print or cursive. Good for kids learning to write.
Upload a small image and see it tiled as a canvas pattern. Export the pattern or copy the JavaScript.
Paste a line of poem and see which syllable stresses create a particular meter. Educational tool.
Create a simple grid or carousel album with local images and captions. Export as printable PDF. Private.
View a series of digital Ishihara‑style plates. Not a diagnostic tool, just educational. Read numbers.
Add a warm, orange light leak to your photo for a vintage film look. Adjust intensity and angle. Instant download.
Use browser compass and geolocation to show which planets and stars are overhead. Minimal, local only.
Toggle between full and reduced motion on a live animated page. See how to design for vestibular disorders. Educational.
Stack multiple background images and blend them with colors. Create unique textures. Copy the CSS code instantly.
Simulate reduced motion preference and test your animations. Copy the media query snippet. Keep your users safe.
Patch the PerformanceObserver and show your page’s Core Web Vitals as you browse. See real‑time scores and suggestions.
Set start and end times for a video and trim it without re-encoding. Download the clip. Pure browser.
Take an SVG element with multiple transform attributes and merge them into a single matrix. Simplify your SVG code locally.
Open a test video in Picture‑in‑Picture mode. Control entering and leaving PiP. Copy the code snippet for your own app.
Paste a Kanji and watch it drawn stroke by stroke with numbered sequence. Excellent for learners. Static data set.
Multiple digital counters for tracking stitches, rows, and pattern repeats. Increment, reset. Works on mobile.
Build a vertical timeline by entering events with dates and descriptions. Export as image or HTML. Perfect for project milestones.
Create a customizable scrolling marquee banner. Copy the HTML and CSS. For retro web projects or fun.
Nest elements in 3D space with preserve‑3d vs flat. Rotate the parent and see children behave differently.
Based on home and destination time zones, suggests a light exposure/avoidance schedule to reduce jet lag. Educational tool, local only.
Create a CAA DNS record to specify which certificate authorities can issue SSL certs for your domain. Prevent mis‑issuance.
Watch classic sorting algorithms step through a randomized bar chart. Adjust speed and array size. Great for learning algorithm efficiency.
Full‑screen random colour changes at a slow pace. Use it as a dynamic background for meditation or focus.
Simulate forced‑colors mode and see how your site looks. Adjust CSS system colors. Make your design accessible.
Generate a palette of N colors that are maximally distinguishable for common color vision deficiencies. Copy the hex codes.
Upload an animated GIF and generate a reversed version. Share the funny backwards motion. Works entirely in your browser via canvas.
Animate elements as they enter and exit the viewport using view() timeline. Parallax and reveal effects without JS.
Select your tech stack and generate a basic CI/CD pipeline YAML file for GitHub Actions, GitLab CI, or Bitbucket.