JSON Validator — Format, Validate & Fix JSON Data [Free]

JSON Validator

automation-lab/json-validator

This actor validates JSON strings and reports syntax errors with positions. It also formats valid JSON, detects the type (object/array/string/number/boolean/null), counts keys or array elements, and measures nesting depth. Useful for data pipeline QA and bulk JSON validation.

JSON-LD Validator

automation-lab/jsonld-validator

This actor validates JSON-LD structured data on web pages. It extracts all `<script type="application/ld+json">` blocks, validates JSON syntax, checks for required properties (@context, @type), and verifies recommended fields for known Schema.org types like Product, Article, Organization,...

Actor Schema Validator. Available on the Apify Store with pay-per-event pricing.

Email Validator & Verifier

junipr/email-validator

6-layer email validation: format, MX records, SMTP mailbox verify, disposable detection (5K+ domains), role-based check, free provider ID. Quality score 0-100 per email. Typo suggestions. Batch processing.

Rich Results Schema.org Tester

alizarin_refrigerator-owner/rich-results-tester

Test any URL for Google Rich Results eligibility. Validate structured data, identify schema errors & get recommendations. Batch test multiple pages for SEO audits.

Telegram Number Validator - Bulk Check

clearpath/telegram-phone-number-validator

Bulk verify phone numbers for active Telegram accounts. Check 1,000-10,000 numbers per run. Upload CSV or Excel files, get instant yes/no results. Clean contact lists, validate leads, enrich CRM data. No Telegram account needed. Global coverage with automatic phone format normalization.

EU VAT Number Validator is an Apify actor that bulk-validates European Union VAT identification numbers through the official VIES (VAT Information Exchange System) REST API operated by the European Commission.

Actor Test Runner. Available on the Apify Store with pay-per-event pricing.

WhatsApp Number Validator - Bulk Check 10K per Run

clearpath/whatsapp-phone-number-validator-api

Check if phone numbers have WhatsApp. Validate up to 10,000 numbers per run from CSV, Excel, or direct input. Yes/no result per number. Clean contact lists before WhatsApp campaigns.

Canonical URL Checker

automation-lab/canonical-url-checker

This actor validates canonical URL tags on web pages. It checks both HTML `<link rel="canonical">` tags and HTTP `Link` header canonicals. It verifies that the canonical URL is accessible, self-referencing when appropriate, absolute (not relative), and consistent between HTML and HTTP...

Actor Schema Diff. Available on the Apify Store with pay-per-event pricing.