Files and images
Free Metadata Analyzer
Inspect files with ExifTool in your browser. Search grouped metadata, compare readable and raw values, and download all collected fields with the exact file hash.
Open Free Metadata AnalyzerFree browser tools
Free File and Email Tools
Inspect file metadata or email headers without uploading them. Your browser processes the input on your device. Get a report without an account, then speak with an examiner if the findings raise a question about a real matter.
Email Header Analyzer
Follow the route recorded in email headers, read authentication claims and compare a DKIM body hash when a complete EML message is available.
Open Email Header AnalyzerYour inputs stay on your device.
The tools inspect files and text in your browser. They do not send inputs to GDF, AI services or mapping providers. Tool input pages do not load optional analytics or advertising, and reports are downloaded directly to your device.
No account or email address is needed. Reports may contain private information, so review them before sharing.
Findings need context.
Metadata can be missing or changed. Mail headers can contain misleading statements. A newly computed hash identifies the supplied bytes but does not prove original authenticity.
If a document or email is disputed, keep the original and its collection context. An examiner can discuss which further records would help answer the question.
Email Forensics · Media AuthenticationProfessional review
Need help with a disputed file?
Explain the disputed record and the decision you need to make. GDF can discuss the scope of a professional examination and how to preserve the original material.
Free Metadata Analyzer 1.1.0 and Email Header Analyzer 1.0.0 are free to use. Browse free tools.