File Naming Validator
Upload files or paste filenames to check them against a naming preset.
No single convention is universally correct — pick the preset that matches where these files are going.
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Drop files here or paste filenames below.
| Filename | Status | Issue | Suggested Fix |
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Found problems? Fix them with the Bulk File Renamer
Frequently asked questions
Which naming rules does the Validator check?
General best practices by default, with presets for Windows, macOS, Linux, and web/SEO-friendly naming — including Windows reserved names like CON or LPT1 and characters that are invalid on specific platforms.
Is one naming convention the "correct" one?
No — conventions differ by platform and team. That's why the Validator offers multiple presets instead of enforcing a single standard.
Does the Validator check for duplicate filenames?
Yes — it flags both exact duplicates and names that only differ by case, such as Invoice.pdf and invoice.pdf.
Can the Validator fix the problems it finds?
Yes — use "Fix All" for a suggested corrected filename per issue, or open the Bulk Renamer to apply a pattern-based fix across the whole batch at once.