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Bulk generate SHA-1, SHA-256, and SHA-512 hashes. Supports HEX/Base64 formats and case conversion for data validation and digital signatures.
Enter text to start batch encryption
HMAC-SHA Calculator
Securely calculate message authentication codes (MAC). Supports SHA256, SHA512, and other algorithms to verify data integrity and sender identity.
Keccak Hash Calculator
Online hash tool supporting Keccak-224, 256, 384, and 512 algorithms. Features custom salt, iterations, and multiple input/output formats.
Caesar Cipher Encoder & Decoder
Easily encrypt and decrypt text using the Caesar cipher (shift cipher) with custom alphabets and shift values online.
SHAKE Hash Generator
Variable-length hash generator for SHAKE-128/256, featuring salt support, multiple iterations, and various input/output formats.
HMAC-SHA Calculator
Securely calculate message authentication codes (MAC). Supports SHA256, SHA512, and other algorithms to verify data integrity and sender identity.
Keccak Hash Calculator
Online hash tool supporting Keccak-224, 256, 384, and 512 algorithms. Features custom salt, iterations, and multiple input/output formats.
Caesar Cipher Encoder & Decoder
Easily encrypt and decrypt text using the Caesar cipher (shift cipher) with custom alphabets and shift values online.
SHAKE Hash Generator
Variable-length hash generator for SHAKE-128/256, featuring salt support, multiple iterations, and various input/output formats.
SHA Hash Calculator
Online hash generator and verification tool supporting SHA1, SHA256, and SHA512 algorithms, featuring advanced salting and multi-round iteration options.
When you need to generate irreversible, unique fingerprints for hundreds or thousands of passwords, file checksums, or transaction IDs, calculating SHA hashes manually one by one is highly inefficient. This tool allows you to input multiple lines of text and generate corresponding SHA series hashes (digests) in bulk all at once. SHA (Secure Hash Algorithm) is a one-way cryptographic hash function that maps data of arbitrary size to a unique digest of a fixed size. The generated hash value (such as the 64-character hexadecimal string of SHA-256) serves as a core credential for verifying data integrity and authenticity.
Q: What is the difference between SHA-1, SHA-256, and SHA-512? How should I choose?
SHA-1 (160-bit) is no longer recommended for secure scenarios due to collision risks and should only be used for legacy system compatibility. SHA-256 (256-bit) is currently the most universal choice, balancing security and performance, and is widely used in SSL/TLS, Bitcoin, and file verification. SHA-512 (512-bit) offers higher security but produces a longer output, making it suitable for situations requiring extremely high collision resistance.
Q: What is the SHA-256 hash value of "123456"?
8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92. This is a typical short-answer example that directly responds to a hash value query for a specific input. You can use this tool for similar quick verifications.
Please strictly separate input data by line; empty lines will also be calculated and generate a corresponding hash. SHA is a one-way hash, meaning the original data cannot be reverse-engineered from the result, so it is not suitable for "encryption-decryption" scenarios. Although this tool performs calculations locally in your browser and does not upload data to a server, it is still not recommended for processing top-secret information. Please note that the output length of different algorithms is fixed (e.g., SHA-256 is always 64 hexadecimal characters). If the result length does not match, please check your input or format settings.
In software development or system auditing, bulk hash generation is often used to create test cases or verify data consistency. An efficient approach is to compile a list of filenames (or user IDs in a database) to be verified into text, one per line, use this tool to bulk generate their SHA-256 values, and then compare them with the standard values. For example, when verifying the integrity of a batch of downloaded files, input "file1.zip file2.iso readme.txt", select SHA-256, and compare the generated hashes line-by-line with the official checksum file (like .sha256sum) to quickly locate corrupted files. For password storage, be sure to add a unique "salt" to each password before hashing. The hashes generated by this tool should only serve as the input basis for salted hashing and must never be stored directly.
