100% local processing • No server upload

Online File Analyzer

Identifies file types, checks for threats, and suggests which apps to use

Security Check
Archive Support
App Recommendations
Private
500+
File Formats
100%
Local
0
Data to Server
Free

File Upload

Drag files here

or click to select files

Maximum 10 files

Up to 100MB per file

No files selected

Upload files to start analysis

Online Analyzer Features

Detects file type, suggests apps to open with, and checks security

Security Analysis

Check files for potential threats and type mismatches

  • • Detect hidden extensions
  • • Analyze potential threats

Archive Support

View and extract files from ZIP archives

  • • ZIP archive support
  • • View contents
  • • Extract individual files

Detailed Information

Metadata and structured file analysis

  • • Image EXIF data
  • • Document metadata
  • • File structure analysis

Office Documents

Analysis and preview of Microsoft Office documents

  • • DOC, DOCX, XLS, XLSX, PPT, PPTX
  • • Text extraction
  • • Metadata viewing

PDF Analysis

Deep analysis of PDF documents with data extraction

  • • Text and image extraction
  • • Form and field analysis
  • • Digital signature verification

100% Privacy

All operations run locally in your browser

  • • No server upload
  • • Works offline
  • • Complete confidentiality
Step-by-step guides

How to use the Online File Analyzer

Visual guides for main usage scenarios

Checking suspicious files

How to safely check a file before opening

5 steps

Extracting files from archive

How to work with archives without installing programs

4 steps

Deep PDF analysis

Extracting all information from PDF document

5 steps

Checking image metadata

How to find out all information about a photo

4 steps

100% Privacy

All operations in the Online File Analyzer are performed locally in your browser. Files are not uploaded to a server, not saved, and not transmitted to third parties. You can safely analyze any confidential documents - they remain only on your computer.

Test Examples

Try with Examples

Test files to demonstrate the capabilities of the Online File Analyzer

PDF18.4 KB

sample-document.pdf

PDF document with text and metadata for structure analysis

PDF structure
Document metadata
Text content
PDF version and properties
JPEG11.1 MB

photo-with-exif.jpg

Photo with full EXIF data and camera information

EXIF metadata
Camera information
Shooting settings
Date and time
ZIP1.1 MB

test-archive.zip

ZIP archive with various file types for content analysis

Multiple files
Folder structure
Compression analysis
Content preview
XLSX350 KB

spreadsheet.xlsx

Excel spreadsheet for demonstrating Office document analysis

Office Open XML format
Table structure
Embedded data
Document metadata
PDF/EXE1.7 MB

masked-executable.pdf

Demonstration of real file type detection

Type detection
Match verification
Safe example

Educational file for detection demonstration

HTML2.3 KB

website-code.html

HTML file with JavaScript for web content analysis

HTML structure
Embedded scripts
CSS styles
Code analysis

Safe Testing

All test files are specially prepared to demonstrate the capabilities of the Online File Analyzer. The "masked-executable.pdf" file contains only demonstration data and is completely safe. You can also use any of your own files - they are analyzed locally and are not sent anywhere.

Safe examples
Real formats
Educational materials
Frequently Asked Questions

Everything About the Online File Analyzer

Answers to popular questions about file analysis capabilities

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