SHA-256 Hash
✓
100% In-Browser Privacy
Zero Server Uploads
Document Checksum & Hash Generator
Verify file integrity and authenticity before uploading to government portals. Calculates SHA-256, SHA-1, and MD5 cryptographic checksums of any document, certificate, or image file in milliseconds using browser WebCrypto.
Client-Side Engine
Confidential & Local
or drag & drop file here (Supports Any document, PDF, Image, Archive (Unlimited size))
100% In-Browser
No file size limits
Safe & Confidential
Document Ready
•
Local Memory
Document Canvas & Live Preview
100% Client-Side Engine
Processing document in browser memory...
Rendering contents locally
Extracted Text
Words
0
Characters
0
No Spaces
0
Sentences
0
Reading Time
0s
Enter or Paste Document Text
Original Document Draft
Revised / New Document Draft
Comparison Result:
+ Added
- Deleted
Click "Compare Now" to view highlighted differences.
Candidate Information
Educational Qualification
Key Skills & Experience
Markdown Code Editor
Live Formatted Preview
Cryptographic File Checksums
Calculated locally using native Web Crypto API
Processed locally inside browser
No data leaves your device • 100% Confidential
Document Checksum & Hash Generator
Format & Security
Client-Side Privacy Guarantee
Your documents, spreadsheets, certificates, and personal information never leave your computer or smartphone.
Quick Presets & Formats
- Official A4 Paper Dimensions (210 × 297 mm)
- Compatible with SSC, UPSC & State PSC
- Universal UTF-8 Encoding
Key Features & Highlights
- ✓ Calculates SHA-256, SHA-1, and MD5 hashes simultaneously
- ✓ Compare hash against an expected checksum with instant Match/Mismatch indicator
- ✓ Processes files of any size directly in memory without uploading
- ✓ One-click Copy Checksum to clipboard
How to Use this Tool (Step by Step)
- 1 Select any document or certificate file.
- 2 The SHA-256, SHA-1, and MD5 cryptographic hashes will be calculated immediately.
- 3 Optionally paste the expected checksum to verify file integrity with 1 click.
Common Indian Real-World Use Cases
Verifying tender documents and digital bids before uploading to e-procurement portals
Ensuring downloaded circulars or software packages have not been tampered with
Checking file identity before and after compression to track variations
Frequently Asked Questions
Never. The cryptographic calculation is performed 100% on your device using the browser native Web Crypto API.