Free document tools
A growing collection of free tools to verify, inspect, and convert documents. Pick a tool, run it in your browser, no signup required.
File integrity tools
4Hash, compare, and verify a file is exactly what it claims to be.
Checksum Calculator
Calculate SHA-256 or SHA-512 hash of any file to verify its integrity.
Try it freeSHA-256 Document Verifier
Privacy-firstDrop any file to compute its SHA-256 fingerprint, then optionally paste a known hash to confirm the document is unchanged.
Try it freeFile Hash Comparator
Upload two files and compare their SHA-256 hashes to confirm they are identical - or detect changes.
Try it freeFile Type Detector
Upload any file to identify its true type from magic bytes - not just the filename extension.
Try it freeMetadata tools
3Read the hidden authorship, camera, and date details inside files.
Image EXIF Viewer
Upload an image to inspect EXIF metadata: GPS, camera model, timestamps, and software.
Try it freePDF Metadata Extractor
Upload a PDF to extract embedded metadata: author, creator, creation date, and modification date.
Try it freeTimestamp Analyzer
Upload a file to display its modification date and compare it against embedded metadata dates.
Try it freeConversion tools
4Convert and protect PDFs, images, and Word documents.
PDF to Image Converter
Privacy-firstConvert each page of a PDF into a high-quality PNG or JPEG image - entirely in your browser.
Try it freePDF Password Protection
Privacy-firstAdd a password to any PDF to restrict who can open it.
Try it freeDOCX to PDF Converter
Upload a Word document and download a formatted PDF in seconds.
Try it freePDF to DOCX Converter
Convert a PDF into an editable Word document while preserving layout and formatting.
Try it freeEncoding tools
2Encode data and generate QR codes without leaving your browser.
Fraud awareness guides
2Checklists and guides for spotting document fraud by eye.
Need automated forensic analysis?
TamperCheck.ai runs 200+ checks on any document and returns a plain-English verdict within seconds.
Start free - we match your first top-up