UD5 Toolkit
Placeholder Image Generator - Online Dummy Image Creator
Generate custom placeholder images for mockups and layouts. Specify dimensions, colors, and text. Export as PNG or use the generated data URI. Entirely browser-based.
Custom Paint‑by‑Numbers Generator – Online from Photo
Custom Paint‑by‑Numbers Generator
Turn your favorite photo into a ready‑to‑paint template in seconds.
Upload Photo
Drag & drop your image here
or click to browse
Settings
Processing...
Frequently Asked Questions
A paint‑by‑numbers generator transforms any photo into a simplified template with numbered color zones. You then match the numbers to a provided color palette to recreate the image as a painting.
Simply upload your photo, choose the number of colors and outline thickness, then click "Generate Template". The tool automatically segments the image and produces a downloadable PNG ready for printing.
Yes! The final result is a high‑resolution PNG that you can print on any standard paper. For best results, use A4 or letter‑sized paper and adjust printer settings to "fit to page".
The number of colors sets how many distinct paint colors will be used. A lower number gives a simpler, more stylized template; a higher number captures more detail and resembles the original photo.
No. This tool runs entirely in your browser. Your images are never sent to any server; everything is processed locally on your device for privacy and speed.
Absolutely. You can print the template, match the numbers to acrylic or oil paints, and create your own DIY paint‑by‑numbers kit. It’s great for relaxation, gifts, or art projects.
Common formats like JPG, PNG, WEBP and GIF are supported. For best results, use a clear, well‑lit photo with a simple background.
@counter‑style Generator - Online Custom List Markers
Design a custom counter style with symbols, range, and speak‑as. Preview ordered lists with your new style. Export the CSS rule.
Lorem Ipsum Image - Online Dummy Photo Placeholder
Generate a grey placeholder image with custom text and dimensions. Data URI output. No external service.
License Key Generator - Online Serial & Product Code Maker
Generate random license keys or serial numbers in various formats (XXXX-XXXX-XXXX). Useful for software activation testing. Local generation.
Invoice Number Generator - Online Sequential & Random
Generate the next sequential invoice number with optional prefix and date stamp. Keep track locally or export.
Add Line Numbers - Online Number Text Lines Tool
Number each line of your text sequentially. Customize start number and format. Useful for code snippets, tutorials, and document review. Private operation.
List Style CSS Generator - Online Custom Bullet & Counter
Design custom unordered and ordered lists with images, strings, or counters. Preview and copy the CSS.
Digital Hourglass - Online Visual Timer with Sand
An animated hourglass that you can set for any time. Watch the sand flow. Beautiful and calming timer.
Image Flip Tool - Online Mirror & Rotate Picture
Flip images vertically or horizontally, and rotate in 90° increments. Quick and simple editing right in the browser. Download the corrected image instantly.
CSS Opacity & RGBA Generator - Online Transparency Tool
Adjust opacity visually with a slider and see the different CSS representations (opacity property vs RGBA/HSLA). Copy best option.
SVG Sprite Generator - Online Combine Icons into One
Upload multiple SVGs and combine them into a single SVG sprite sheet with `<symbol>` and `<use>`. Fast icon system.
Web Crypto Key Generator - Online Generate RSA/EC Keys
Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.
SVG to CSS Mask Converter - Online Non‑Destructive Mask
Convert an SVG shape into a CSS mask‑image. Transparent regions become masked. Great for custom image crops. Client‑side.
Noise Texture CSS Generator - Online Grain & Grunge
Generate a subtle or heavy noise/grain texture as a CSS background. Adjust intensity and color. Copy the small code.
International Phone Number Formatter - Online Validate & Normalize
Paste a phone number and format it according to the E.164 standard. Identify country and detect common typos. Local parser.
Batch QR Code Generator - Online Multiple Codes at Once
Paste a list of URLs or texts and generate QR codes all at once. Download as individual images or a single sheet.
Sound Effect Generator - Online Create 8-bit & Retro Noises
Generate classic retro sound effects (coin, jump, explosion) using oscillators and noise. Play and download as WAV. Web Audio API fun.
Story Prompt Generator - Online Creative Writing Inspiration
Combine random character, setting, conflict, and genre to generate unique story prompts. Over 10,000 possible combinations. Perfect for overcoming writer's block.
Area Converter - Online Square Feet & Acre Hectare Tool
Convert between square meters, square feet, acres, hectares, and more. Essential for real estate and land measurements. Instant results, private data.
Date to Unix Epoch Converter - Online Human to Timestamp
Convert any human‑readable date to a Unix timestamp in seconds or milliseconds. Also shows ISO 8601. Clean interface.
Kitchen Timer - Online Multiple Preset Countdowns
Run multiple named timers simultaneously for cooking. Presets like pasta, rice, etc. Audio alarm. Works in background.
Unix Timestamp Converter - Online Epoch & DateTime Tool
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Ideal for developers debugging time-related code.
Image Channel Viewer - Online Isolate RGB or CMYK Channels
View the individual red, green, and blue channels of an image as grayscale. Photographer and developer tool.
<dialog> Modal Generator - Online Native HTML Modal
Build an accessible modal using the native <dialog> element. Customize backdrop, content, and open/close logic. Copy the code.
Stopwatch & Countdown Timer - Online Dual Tool
Dual-function tool: a precise stopwatch with laps and a configurable countdown timer with alarm sound. Works offline, perfect for activities.
SVG Morphing Playground – Online Smooth Path Transformation
Paste start and end SVG paths with the same number of points and preview a smooth morph animation. Copy SMIL code.
Vanilla JS Plugin Builder - Online Template Generator
Get a clean, commented JS plugin skeleton with IIFE or ES module pattern. Start your new library faster.
Online Code Editor (HTML/CSS/JS) - Instant Live Preview
Write HTML, CSS, and JavaScript in separate panes and see the result in real time. Store your snippets locally.
perspective‑origin Playground - Online Vanishing Point
Move the vanishing point of a 3D scene. Drag to set perspective‑origin and see the scene shift. Copy CSS.
CSS visibility & display Demo - Online Show/Hide Effects
Compare visibility: hidden vs display: none. See how each affects layout and event listeners. Inline code.