A bridge from phone number to chat.
Paste a number → hit the button → the dialog opens. No “save contact” hassle. ⚡
Frontend-only web app. No server, no database. Everything runs in the browser.
- Paste or type a number (parentheses, spaces, dashes allowed).
- We clean & normalize it (incl. 8→7 for RU/KZ).
- Tap Open WhatsApp — universal link opens the chat on mobile or desktop.
- Number field + Paste (input group)
- Open WhatsApp (primary CTA)
- Additional (collapse) → multiline message
- History (collapse) → recent numbers: insert / delete / clear
- Inline error messages under the field
- Title: Zappi — instant to WhatsApp
- Subtitle: Paste a number — we’ll open the chat without saving a contact.
- Placeholder: Enter a number: e.g., +7 707 123-45-67
- Buttons: Paste, Open WhatsApp, Additional, History, Clear all
- Error: This doesn’t look like an international number. Check length and country code.
- Parses from clipboard & strips extra characters
- Normalizes local formats (incl. RU/KZ)
- Validates length against international standard
- Adds an optional pre-filled message to the chat
- Stores recent numbers locally (on the user’s device)
- No cloud sync: history/settings don’t travel across devices
- Deep links vary by platform — universal links favored for stability
- Very long messages can hit URL length limits in some browsers
- PWA: install to home screen, offline static assets
- QR: generate PNG/SVG, “Download”
- Channels: Telegram / Viber / SMS / Email (switcher)
- Batch: paste a list → open dialogs sequentially
- Pages: mini “link-in-bio” via URL parameters
- Widget: “Message us” embed for any website
- i18n: RU/EN toggle & local storage
- Wordmark: “Zappi” in black
- Mark: lightning bolt (accent/gradient per brand guide)
- Assets: transparent backgrounds for logos/icons
- Favicon: single source at
/favicon.ico(avoid conflicts)
MIT — see LICENSE.