Karaoke Text Sync Tool - Online LRC Lyric Generator
Paste lyrics and tap while the song plays to embed timestamps. Export as .lrc file for music players. All in browser.
UD5 Toolkit
Paste lyrics and tap while the song plays to embed timestamps. Export as .lrc file for music players. All in browser.
Write HTML, CSS, and JavaScript in separate panes and see the result in real time. Store your snippets locally.
Dual-function tool: a precise stopwatch with laps and a configurable countdown timer with alarm sound. Works offline, perfect for activities.
Convert between square meters, square feet, acres, hectares, and more. Essential for real estate and land measurements. Instant results, private data.
Upload multiple SVGs and combine them into a single SVG sprite sheet with `<symbol>` and `<use>`. Fast icon system.
Write a function name and get a complete unit test stub with describe, it, and expect. Follows AAA pattern.
Move the vanishing point of a 3D scene. Drag to set perspective‑origin and see the scene shift. Copy CSS.
Sing or play an instrument into the mic and see the detected pitch on a real‑time chromatic tuner. Use for practice or ear training.
Write or paste HTML, CSS, and JavaScript and instantly see the rendered output in a sandboxed iframe. A handy frontend prototyping tool.
Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.
Drag items into grid cells and see the resulting grid‑area or line‑based placement code. Learn how auto‑placement and spanning work.
Generate classic retro sound effects (coin, jump, explosion) using oscillators and noise. Play and download as WAV. Web Audio API fun.
Design a custom counter style with symbols, range, and speak‑as. Preview ordered lists with your new style. Export the CSS rule.
Write SSML to control pitch, speed, and breaks. Play the generated speech with the browser’s TTS engine. Learn SSML.
Enter a MIDI note number (0–127) or a musical note name and get the exact frequency in Hz. Piano keyboard picker.
Fill in container image and ports. Generate a Deployment and Service YAML with best practices. Start your K8s journey.
Generate random numbers and watch the live histogram. Compare uniform, normal, and exponential distributions.
Get a clean, commented JS plugin skeleton with IIFE or ES module pattern. Start your new library faster.
Trim a video clip and convert it into an animated GIF. Adjust frame rate and size. Processing stays on your computer for privacy.
Design a custom analog clock face by choosing colors, hands, and numbers. Download as SVG or PNG. For craft or UI design.
Convert any human‑readable date to a Unix timestamp in seconds or milliseconds. Also shows ISO 8601. Clean interface.
Select trip type (beach, business, camping) and get a pre-filled packing checklist. Customize and print. Local storage.
Build an accessible modal using the native <dialog> element. Customize backdrop, content, and open/close logic. Copy the code.
An animated hourglass that you can set for any time. Watch the sand flow. Beautiful and calming timer.
Generate the next sequential invoice number with optional prefix and date stamp. Keep track locally or export.
Generate a complete <head> section with meta charset, viewport, SEO, favicon, and social tags. Customize and copy.
Convert an SVG shape into a CSS mask‑image. Transparent regions become masked. Great for custom image crops. Client‑side.
Build a basic Nginx server block for a static site, reverse proxy, or PHP. Fill in the blanks and copy the config.
Convert JSON data structures to clean, human-readable YAML. Indentation and formatting preserved. All processing done locally for your privacy.
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Ideal for developers debugging time-related code.