Scan to start an email
Streamline customer inquiries and support requests. Enter an email address to generate a mailto: QR code. When scanned, the smartphone will immediately open its default email app and start a new draft addressed to you.
Use this on brochures, business cards, conference badges, or product packaging. Download the generated code in SVG format so it scales crisply for high-quality printing. Everything happens client-side, meaning your email address is never saved to our servers.
It opens whatever app the user has set as their default mail client on their device, such as Apple Mail, Gmail, or Outlook.
While writing the address is good practice, a QR code eliminates typos and saves the user from having to switch apps and manually type it out.
Generate QR codes from text, URLs, or data. Customize colors, adjust error correction levels, and export as SVG or PNG.
Generate rows of realistic fake data from selectable fields like name, email, address, and price. View as a table and export to CSV or JSON.
Generate comprehensive 10-step Tailwind CSS color scales from a single base color. Copy the results as standard CSS vars.
Write white, pink, or brown noise as a WAV file. Set the level in dBFS, duration, mono or stereo, sample rate, and 16, 24, or 32-bit PCM, with each channel generated separately.
Decode QR codes from an image or live camera feed. Drop, paste, or scan directly, and the tool reads the encoded text, URL, or structured data.
Measure a file to ITU-R BS.1770-4, then apply the gain that lands it on a loudness target such as -14 LUFS or on a true peak ceiling, with an optional limiter holding the peaks.
Generate and validate secure BIP39 cryptographic seed phrases. Calculate seed hexes with custom passphrases entirely offline in your browser.
Build CSS gradients with a live preview, drag color stops along a track, switch between linear, radial, and conic types, and copy the final CSS or export a PNG.
Generate a complete favicon package from an image. Adjust padding, background, and corner radius, then export a ZIP with all required sizes and HTML.
Generate HTML meta tags, Open Graph properties, and Twitter Card tags from a page title, description, and image, with a live search-result and social-card preview.
Recreate a photo as one continuous thread wrapped around nails on a circular frame. Set the nail count and thread passes, then export the image or the nail-by-nail sequence for a physical build.
Generate SMPTE color bars, grayscale steps, linearity grids, and line-pair wedges at an exact pixel size, then export the card as PNG, JPEG, or WebP.