What are best practices for website forms?

Forms are critical conversion points requiring careful design. Best practices include: asking only for essential information (every field reduces completion rate), using clear, specific labels, providing inline validation feedback, making required fields obvious, ensuring mobile-friendly tap targets, adding helpful placeholder text, grouping related fields logically, showing progress indicators for long forms, and writing action-oriented submit buttons ("Get My Free Quote" instead of "Submit"). Avoid multi-column layouts on mobile. Use appropriate input types (email field with @ key, telephone field with number pad). Consider breaking long forms into multi-step formats with progress indicators. We design forms that balance collecting necessary information with minimising friction. Every form is tested on actual devices to ensure smooth completion.