Hash Generator

Compute MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files right in your browser. Compare two hashes, verify checksums, and run integrity checks — all without sending any data to a server.

Hash Generator
Thời gian thực
Tạo MD5, SHA-1, SHA-256, SHA-512 hash từ text hoặc file
Nhập text
Bảo mật

Tất cả hash được tạo hoàn toàn trên trình duyệt của bạn. Không có dữ liệu nào được gửi lên server.

Hash Algorithms

MD5

128-bit hash (32 ký tự hex)

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SHA-1

160-bit hash (40 ký tự hex)

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SHA-256

256-bit hash (64 ký tự hex)

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SHA-512

512-bit hash (128 ký tự hex)

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So sánh Hash
Dán hai giá trị hash để kiểm tra xem chúng có trùng khớp hay không (không phân biệt hoa/thường, khoảng trắng).
Nhập cả hai hash để so sánh

Công cụ liên quan

Tất cả công cụ

About Hash Generator

Generate cryptographic hashes instantly in your browser. Supports MD5, SHA-1, SHA-256, and SHA-512 algorithms for both text and file inputs. All processing happens client-side — your data never leaves your device.

Key Features

  • -Multiple hash algorithms (MD5, SHA-1, SHA-256, SHA-512)
  • -Hash both text input and uploaded files
  • -Instant client-side computation
  • -One-click copy hash to clipboard
  • -No data transmitted to any server
  • -Compare two hashes for equality

Use Cases

File Integrity Verification

Verify downloaded files match original checksums to ensure they have not been tampered with during transfer.

Password Hash Comparison

Compare password hashes without exposing plaintext values. Useful for debugging authentication systems.

Data Deduplication

Generate hash fingerprints to identify duplicate files or content across large datasets.

Checksum Validation

Create and verify checksums for software releases, backups, and data transfers.

Frequently Asked Questions

What is a cryptographic hash?
A hash function converts any input into a fixed-length string of characters. The same input always produces the same output, but the process cannot be reversed to recover the original data.
Which hash algorithm should I use?
SHA-256 is recommended for most purposes. MD5 and SHA-1 are considered weak for security but still useful for checksums. SHA-512 provides the highest security level.
Is my data safe?
Yes. All hashing runs entirely in your browser using a JavaScript cryptographic library (CryptoJS). No data is transmitted to any server — everything is computed locally on your device.
Can a hash be reversed?
No. Cryptographic hash functions are one-way by design. You cannot derive the original input from a hash output.

Tips & Best Practices

  • -Use SHA-256 or higher for security-sensitive applications
  • -Always verify file checksums after downloading from untrusted sources
  • -Never use MD5 for password hashing in production systems
Hash Generator - MD5, SHA-1, SHA-256 Online Free | atdev.blog