Includes: Component, Plugin
PostBox Pro
Multi-step forms for Joomla 5 and 6 — with conditional field logic, file uploads, auto-save, and a submission review step.
Build complex enquiry forms, application forms, and multi-page contact forms without the overhead of a full form framework. PostBox Pro installs in seconds and includes a one-step import tool to migrate from PostBox free.
About this Extension
PostBox Pro is a powerful form builder for Joomla 5 and 6. It goes beyond simple contact forms with multi-page navigation, conditional field logic, file uploads, a submission review step, and auto-save — all built with vanilla PHP and Joomla-native MVC. No jQuery, no bloat, no third-party dependencies.
Create a form, add your fields, set up your email notifications, and publish it as a menu item or embed it anywhere with a shortcode. Pro features like conditional logic and multi-step pagination are configured directly in the field editor — no code required.
See PostBox Pro in Action
Who It’s For
- Site owners who need more than a basic contact form — multi-page forms, conditional fields, and file uploads without installing a heavyweight form framework
- Developers building Joomla sites — clean MVC architecture, template overrides, and well-documented CSS classes for full control over output
- Agencies managing complex enquiry flows — build multi-step forms with conditional branching, review steps, and per-form GDPR retention rules
- Sites already using PostBox (free) — a built-in import tool migrates your existing forms, fields, and submissions into PostBox Pro in one step
Key Benefits
- Multi-page forms — split long forms into steps using Page Break fields; each page validates before advancing, with a progress bar showing the visitor where they are
- Conditional field logic — show or hide any field based on the value of another; configure AND/OR rules visually in the field editor with no coding required
- File uploads — accept attachments with configurable allowed file types and per-form size limits; uploaded files are attached to the admin notification email
- Summary / review step — optionally show visitors a review of their answers before final submission, reducing errors on longer forms
- Auto-save — save form progress to browser storage so visitors can resume if they navigate away; progress clears on successful submission
- Twelve field types — text, email, textarea, dropdown, checkbox, radio, number, date, telephone, URL, file upload, and HTML content blocks
- AJAX submission — forms submit without a page reload; inline validation gives immediate feedback before the server is contacted
- Email notifications with templates — customise notification emails and auto-reply messages using
{field_name}placeholders; specify exactly which field provides the reply-to address - Three layers of spam protection — honeypot (always active), IP rate limiting (always active), and optional captcha via hCaptcha or Cloudflare Turnstile
- GDPR compliance built in — per-form consent checkboxes, configurable data retention periods, and an automated purge task
- Submissions manager — filter by form and read status, search across data, export to CSV, and mark submissions read or unread in bulk
- Import from PostBox free — migrate existing forms, fields, and submissions from the free version without losing any data
- No dependencies — vanilla PHP and Joomla-native MVC; no jQuery, no Bootstrap, no third-party libraries in the output
How It Works
- Install the package — the component, shortcode content plugin, and GDPR purge task plugin are installed together in one step.
- Go to Components → PostBox Pro → Forms and click New to create a form.
- Add fields from the field manager. Set up conditional logic, file upload limits, and multi-page breaks as needed.
- Configure email notifications, auto-reply, and spam protection on the form’s settings tabs.
- Publish the form as a menu item, or embed it in any article using the
{postboxpro ID}shortcode.
Built for Joomla 5 and 6 using Joomla’s native MVC architecture. No jQuery, no Bootstrap dependencies in the front-end output. All Pro features — multi-page navigation, conditional logic, file uploads, and auto-save — work identically whether the form is published as a menu item or embedded via shortcode.
Releases
PostBox Pro v1.1.2
Released: 2026-04-30 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.1.2.zip
Minor update adding a licence key field to component options.
Improvements
- Pro License tab — component options now include a dedicated Pro License tab where you can store your licence key. This is separate from the Download Key in System → Update Sites, which controls automatic update access — see the Licence Key Setup section in the documentation for full details.
PostBox Pro v1.1.1
Released: 2026-04-30 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.1.1.zip
Minor update adding a configurable Reply-To address for notification emails.
Improvements
- Reply-To field — each form now has a Reply-To field in the Email Notification tab. Set it to a static address, or use a
{field_name}placeholder to pull the value from the submission — for example{email}to reply directly to whoever filled in the form. Leave it blank and PostBox Pro will auto-detect the first email-type field as before.
PostBox Pro v1.1.0
Released: 2026-04-27 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.1.0.zip
Feature update adding per-field file upload configuration and relative date constraints for date fields.
Improvements
- Per-field file upload settings — Allowed File Types and Max File Size are now configured on each File Upload field individually, so different upload fields on the same form can accept different file types and sizes. The form-level settings on the Pro Features tab remain as fallback defaults.
- Relative date min/max — the Date field now accepts relative values for Min Value and Max Value:
today,today+7,today+30,today-1etc. The date is resolved at render time, so a value oftoday+7always means seven days from when the visitor loads the form. StaticYYYY-MM-DDdates continue to work as before.
PostBox Pro v1.0.2
Released: 2026-04-27 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.0.2.zip
Minor update adding border control to the shortcode.
Improvements
- Shortcode border control — use
{postboxpro 1 border=false}to embed a form without the card border and background; useful when placing a form inside a section or container that already provides its own styling. Accepted values for disabling:false,0,no. Existing shortcodes are unaffected.
PostBox Pro v1.0.1
Released: 2026-04-07 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.0.1.zip
Bug fix release.
Fixes
- Token validation failing on cached sites — form submission was rejected on sites with aggressive full-page caching because the Joomla form token was being cached along with the page; the token is now fetched dynamically on submit
- Minor admin UI polish on the submissions list
PostBox Pro v1.0.0
Released: 2026-04-01 · Compatibility: Joomla 5.x, 6.x · PHP 8.1+ · Package: pkg_postboxpro_1.0.0.zip
Initial release of PostBox Pro — a powerful multi-step form builder for Joomla 5 and 6.
Included in this release
- com_postboxpro — Component with admin dashboard, form builder, field manager, submissions manager, and import tool