Built to Work.
Built to Serve.
Free interactive tools that solve real problems — no signup, no tracking. Each one demonstrates the engineering behind it.
OmniConverter
Convert images between formats. Drag & drop or click to upload.
Drop an image here or click to browse
PNG, JPEG, WebP, HEIC supported
OmniConverter
// Client-side image conversion
const canvas = document.createElement('canvas');
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
const ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0);
// HEIC support via dynamic import
const heic2any = await import('heic2any');
const blob = await heic2any({ blob: file });
// Export to any format
canvas.toBlob(callback, outputFormat, 0.92);“Zero server costs for file conversion — all processing happens in the browser. Supports HEIC from iPhones with dynamic WASM loading.”
WiFi Card
Generate a QR code for your WiFi network.
WiFi Card
// WiFi QR code standard (WPA/WPA2/WEP)
const wifiString =
`WIFI:T:${encType};S:${ssid};P:${password};;`;
// Theme-aware QR — adapts to light/dark mode
const dataUrl = await QRCode.toDataURL(
wifiString,
{ color: { dark: qrDotColor, light: '#00000000' } }
);
// Customizable card export via Canvas
const gradient = ctx.createLinearGradient(0, 0, w, h);
gradient.addColorStop(0, theme.colors[0]);“WiFi credentials never leave the browser. Supports WPA, WPA2 & WEP with 6 customizable card themes for download.”
Tone Polisher
Rewrite any text in a different tone using AI.
Polished text will appear here...
Tone Polisher
// API route with rate limiting
const limiter = rateLimit(ip, {
maxRequests: 10,
windowMs: 60_000,
});
// Groq API — llama-3.1-8b-instant
const response = await fetch(GROQ_API_URL, {
body: JSON.stringify({
model: 'llama-3.1-8b-instant',
messages: [
{ role: 'system', content: tonePrompt },
{ role: 'user', content: text },
],
}),
});“Sub-second AI rewrites using Groq inference. Rate-limited per IP to prevent abuse. Four distinct tone personalities via system prompts.”
Timezone Picker
Compare times across cities. Drag the slider to change the time.
Timezone Picker
// Zero-dependency timezone conversion
const formatter = new Intl.DateTimeFormat('en-US', {
timeZone: 'America/New_York',
hour: 'numeric',
minute: '2-digit',
hour12: true,
});
// DST handled automatically by the browser
const time = formatter.format(utcDate);
// Color zones: green (9-6), yellow (6-9/6-10), red“No moment.js or date-fns needed — the Intl API handles DST transitions automatically. Half-hour increments for cities like India (+5:30).”
Image Compressor
Compress any image by quality percentage or target file size.
Drop an image here or click to browse
PNG, JPEG, WebP, HEIC supported
Image Compressor
// Binary search to hit a target file size
async function compressByTargetSize(canvas, format, targetBytes) {
let lo = 1, hi = 95, best = null;
for (let i = 0; i < 15; i++) {
const mid = Math.floor((lo + hi) / 2);
const blob = await blobFromCanvas(canvas, format, mid);
if (blob.size <= targetBytes) {
best = blob;
lo = mid + 1; // try higher quality
} else {
hi = mid - 1; // reduce quality
}
}
return best ?? await blobFromCanvas(canvas, format, 1);
}“Zero server costs — Canvas API handles all compression locally. Binary search finds the highest JPEG/WebP quality that fits within the user's target size in ~15 iterations.”