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.
UD5 Toolkit
Paste a list of URLs or texts and generate QR codes all at once. Download as individual images or a single sheet.
Generate random license keys or serial numbers in various formats (XXXX-XXXX-XXXX). Useful for software activation testing. Local generation.
Generate random, secure coupon codes with a prefix. Choose length and character set. Perfect for store admins. All local.
Fill in bio, skills, projects to generate a clean HTML portfolio page. Copy the code. Local builder.
Generate a complete <head> section with meta charset, viewport, SEO, favicon, and social tags. Customize and copy.
Upload multiple SVGs and combine them into a single SVG sprite sheet with `<symbol>` and `<use>`. Fast icon system.
Generate encrypted passwords for .htaccess basic authentication. Create .htpasswd entries using bcrypt, MD5, or SHA. Server admin utility, local compute.
Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.
Generate classic retro sound effects (coin, jump, explosion) using oscillators and noise. Play and download as WAV. Web Audio API fun.
Place rectangular pattern pieces on a virtual fabric width to optimize cutting layout and reduce waste. Simple manual drag & drop. Local only.
Design a custom counter style with symbols, range, and speak‑as. Preview ordered lists with your new style. Export the CSS rule.
Build an accessible modal using the native <dialog> element. Customize backdrop, content, and open/close logic. Copy the code.
Design a custom analog clock face by choosing colors, hands, and numbers. Download as SVG or PNG. For craft or UI design.
Get a clean, commented JS plugin skeleton with IIFE or ES module pattern. Start your new library faster.
Generate the next sequential invoice number with optional prefix and date stamp. Keep track locally or export.
Write HTML, CSS, and JavaScript in separate panes and see the result in real time. Store your snippets locally.
Design custom unordered and ordered lists with images, strings, or counters. Preview and copy the CSS.
Write SSML to control pitch, speed, and breaks. Play the generated speech with the browser’s TTS engine. Learn SSML.
Select trip type (beach, business, camping) and get a pre-filled packing checklist. Customize and print. Local storage.
Paste lyrics and tap while the song plays to embed timestamps. Export as .lrc file for music players. All in browser.
Add columns with types and constraints, then generate a SQL CREATE TABLE statement. Supports MySQL/PostgreSQL.
Fill in container image and ports. Generate a Deployment and Service YAML with best practices. Start your K8s journey.
Build Apache mod_rewrite rules for redirects or clean URLs. Fill in simple fields and get the .htaccess code.
Convert an SVG shape into a CSS mask‑image. Transparent regions become masked. Great for custom image crops. Client‑side.
Trim a video clip and convert it into an animated GIF. Adjust frame rate and size. Processing stays on your computer for privacy.
Enter a MIDI note number (0–127) or a musical note name and get the exact frequency in Hz. Piano keyboard picker.
Run multiple named timers simultaneously for cooking. Presets like pasta, rice, etc. Audio alarm. Works in background.
Write a function name and get a complete unit test stub with describe, it, and expect. Follows AAA pattern.
Combine random character, setting, conflict, and genre to generate unique story prompts. Over 10,000 possible combinations. Perfect for overcoming writer's block.
Connect to a serial device (Arduino, etc.) via the Web Serial API. Send and receive text. No native app needed.