Data Validator
Validate common data formats like JSON, emails, and URLs
Validate common data formats like JSON, emails, and URLs. Key features include JSON, email, URL, phone, IPv4, credit card, and date checks and Bulk validation (one value per line). Use it for inspecting and transforming structured data. All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Encrypted with HTTPSProcessed in your browser
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Actions:
How to Use
- Select the data format to validate
- Paste your data
- Click "Validate" to check
- Review validation results and errors
Features
- JSON, email, URL, phone, IPv4, credit card, and date checks
- Bulk validation (one value per line)
- Pass/fail results for every entry
- Valid and invalid counts
- No data leaves your browser
Frequently Asked Questions
What data formats can I validate?
The tool validates JSON, email addresses, URLs, phone numbers, IPv4 addresses, credit card numbers, and dates.
Does it show the exact error location?
No. Results show a valid/invalid status with a short message for each entry. For JSON, the parser error message is shown when the input is invalid.
Can it validate against a schema?
No. The tool checks formats and syntax only. Schema validation is not supported.
What data tools are available?
We offer CSV viewer, JSON viewer, XML viewer, data validator, CSV to JSON converter, and more for working with structured data.
Are these data tools free?
Yes. All data tools are free with no sign-up, no file size restrictions, and no usage limits.
Is my data private?
Yes. All data processing happens in your browser. Your data is never uploaded to any server.
Privacy & Security
All processing happens entirely in your browser using client-side JavaScript. Your files and text are not uploaded to Tool-web's server.
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