
JSON schema builder
Define properties with names, descriptions, and types to generate JSON schemas. Supports strings, arrays, numbers, booleans, and timestamps with configurable length constraints.

Define properties with names, descriptions, and types to generate JSON schemas. Supports strings, arrays, numbers, booleans, and timestamps with configurable length constraints.

Generate one-click calendar event links for Google Calendar, Apple Calendar, Outlook, Yahoo, and more. Create Add to Calendar buttons and downloadable ICS files to boost event attendance in your emails and notifications.

Create mailto links with pre-filled recipients, subject lines, body text, CC, and BCC fields. Generate properly encoded email links that work across all email clients and embed them in your notification templates.

Transform your code into beautifully styled, email-compatible HTML snippets with syntax highlighting. Choose from multiple themes and languages, then export as inline-styled HTML or PNG for use in transactional emails and notifications.

Generate VAPID (Voluntary Application Server Identification) key pairs for web push notifications.

Calculate statistical significance for your A/B tests. Enter visitor and conversion data to determine if your results are statistically significant with confidence levels and p-values.

Generate realistic text message previews for iPhone and Android devices. Customize contact names, message content, and device settings to create professional mockups for your SMS notifications.

Generate realistic push notification previews for iPhone and Android devices. Customize icons and message content to create professional mockups for your push notifications.