Web MIDI Keyboard Tester - Online Visual Note Display
Connect your MIDI keyboard and see pressed notes visually on a piano roll. Check velocity, channel, and aftertouch. No DAW needed.
UD5 Toolkit
Online LRC Lyric Generator â Create perfectly synced lyrics for karaoke
No lyrics yet
Click "Paste Lyrics" or "Add Row" to start
[mm:ss.xx] format, allowing music players and karaoke applications to display lyrics in sync with audio playback. It's widely supported by media players like VLC, foobar2000, and mobile music apps.[mm:ss.xx] where mm = minutes, ss = seconds, and xx = hundredths of a second (centiseconds). For example, [01:23.45] represents 1 minute, 23 seconds, and 45 centiseconds. The LRC format supports multiple timestamps per line for repeated choruses, like [01:23.45][02:45.67]Chorus lyrics.mm:ss.xx format. The LRC preview updates automatically. You can also use the Offset setting in the Export section to shift all timestamps forward or backward by a specified number of seconds â perfect for correcting sync drift.[ti:Title] â Song title[ar:Artist] â Artist name[al:Album] â Album name[by:Author] â LRC creator[offset:ms] â Global offset in milliseconds[length:duration] â Song durationcurrentTime with centisecond precision. For most applications, this is sufficiently accurate. For the best results, tag each line right at the moment the vocals begin. You can always fine-tune timestamps manually or use the global offset adjustment to correct any consistent lag or lead.Connect your MIDI keyboard and see pressed notes visually on a piano roll. Check velocity, channel, and aftertouch. No DAW needed.
Connect a MIDI controller and see every message in a log. Filter by channel and type. Essential for debugging music apps.
Build a vertical timeline by entering events with dates and descriptions. Export as image or HTML. Perfect for project milestones.
Visualize audio in real time from your microphone or uploaded audio file. See the waveform dance. Uses Web Audio API locally.
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.
Decode FLAC, Opus, or OGG audio files in the browser using compiled WASM libraries. Play instantly without server uploads. Keep audio private.
Convert any image into beautiful ASCII art. Adjust brightness and character set for the best effect. Share text-based pictures. Runs entirely in the browser.
Enter the recipe's wattage and your microwave's wattage to convert cooking time. Prevent burnt or cold food.
Paste binary sequences and convert them back to readable text. Supports space-separated and 8-bit formatted strings. Quick encoding reconversion.
Realâtime frequency spectrum from your microphone. Visual bars or line. Check room resonance.
Paste a string of 0s and 1s and decode it back into ASCII text. Handles spaceâseparated blocks. Local.
Generate a palette of N colors that are maximally distinguishable for common color vision deficiencies. Copy the hex codes.
Play an audio file or use mic to see realâtime frequency bars. Choose colors. Great for music videos. Canvas.
Write Mermaid markdown and instantly see the rendered flowchart, sequence diagram, or Gantt chart. Copy SVG output. Browser-side rendering.
Reverse the NATO phonetic alphabet. Paste 'Bravo Romeo Alpha Victor Oscar' and get 'Bravo'. Essential for call center transcripts.
Parse a Snowflake ID (used by Discord, Twitter) into its timestamp, worker, and sequence components. Instant local decoding.
See the current AudioContext state (suspended, running). Resume it with a button. Understand autoplay policies.
Combine multiple static images into a single animated GIF. Adjust frame delay and order. No upload, inâbrowser encoding.
Generate a standard XML sitemap for your website by entering a start URL. Crawls internal links directly from your browser. No server-side processing.
Add floating emoji reactions (like live streams) to any screenshot or photo. Export as still image. Fun social media tool.
Generate a standard otpauth:// URI and QR code for authenticator apps. Set issuer, account, and secret. All local.
View recent earthquakes worldwide on a map. Fetches public USGS GeoJSON feed directly from browser. Real-time data.
Upload a WebP image and automatically generate a <picture> tag with JPEG/PNG fallback. Ensure compatibility everywhere.
Design visual posts for Instagram, Twitter, Facebook. Background gradients, text, and stickers. Download as PNG. No signâup.
Paste HTML or URL to extract canonical link tag. Verify self-referencing. Simple SEO audit step. Local only.
Paste HTML code and extract all comments or remove them completely. See a list of comments found. Clean your markup.
Apply tone mapping algorithms to bring out details in highlights and shadows. Simulate HDR from a single image.
Tidy up messy HTML code with our online formatter and beautifier. Indent and clean your markup, preview the output instantly. No data is uploaded, everything runs in your browser.
Create a basic Open Graph image with a title, background color, and logo. Download as PNG. Perfect for small sites.
Convert any image into colored ASCII art using divs with background colors. Creates a stunning textâbased replica. View & copy HTML.