Validation Muse for Contact Form 7

Validation Muse lets you write your own error messages for every Contact Form 7 field — directly in the form editor, per form, per field. No code, no global settings page, no JavaScript hacks.

Most CF7 validation plugins broke when Contact Form 7 6.x introduced Schema-based Validation (SWV). Validation Muse runs its filters at priority 20 (after CF7 core) and uses Reflection to replace SWV error text on already-invalidated fields, so your custom copy actually shows up — even on the new validation engine.

Why Validation Muse

• CF7 6.x SWV compatible — works with the new Schema-based Validation engine, not just legacy hooks.
• Per-form, per-field — each form keeps its own messages; no global override.
• Stored in post meta — messages live with the form, compatible with CF7 form duplication and third-party CF7 import/export plugins.
• Multilingual via Flavor — when the Flavor translation plugin is active, language tabs and a one-click AI Translate button appear in the editor automatically. Zero overhead when Flavor is not installed.
• Developer-friendly — extensibility hooks vmcf7_loaded and vmcf7_validation_tag_types let you add custom field types.
• Lightweight — no admin bloat, no tracking, no upsells.

Supported field types

• Required-field messages: any required tag (text, textarea, select, checkbox, radio, file, etc.)
• Invalid-format messages: email, url, tel, number (including range), and date.
• HTML inside messages is allowed and sanitized through wp_kses_post().

Translations

The plugin ships with a .pot file and is already translated into Dutch, German, Russian, Spanish (Chile/Spain). Help translate it into your language.