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Efficiently change file MD5 hashes in bulk to generate brand new hash codes, solving issues like duplicate file checks and upload restrictions.
Modifies the MD5 hash value of a file by appending random data to its end, without affecting the file's normal use (limited to multimedia/archive files, etc.).
Drag files here, or click to upload
Supports videos, images, archives, etc.
MD6 Hash Generator
Generate 128, 256, or 512-bit MD6 hashes online. Supports custom keys and iteration levels for data validation and secure message digests.
MD4 Hash Generator
Generate MD4 message digests online with support for multiple input formats, salt, iterations, and encoding options.
MD2 Hash Generator
Generate MD2 hashes online with support for multiple input formats, salting, and iteration settings for data integrity verification.
MD5 Hash Generator
Generate MD5 hash values for any data. Ideal for data integrity checks, file verification, and more.
MD6 Hash Generator
Generate 128, 256, or 512-bit MD6 hashes online. Supports custom keys and iteration levels for data validation and secure message digests.
MD4 Hash Generator
Generate MD4 message digests online with support for multiple input formats, salt, iterations, and encoding options.
MD2 Hash Generator
Generate MD2 hashes online with support for multiple input formats, salting, and iteration settings for data integrity verification.
MD5 Hash Generator
Generate MD5 hash values for any data. Ideal for data integrity checks, file verification, and more.
RIPEMD Hash Generator
Generate RIPEMD-128, RIPEMD-160, RIPEMD-256, and RIPEMD-320 hashes online. Supports text, Hex, and Base64 inputs.
When file uploads are restricted or fail validation due to duplicate MD5 hashes, this tool generates a completely new and unique MD5 hash by appending a tiny amount of random bytes to the end of the file (without affecting the main content). MD5 is a 128-bit cryptographic hash function that maps arbitrary data into a 32-character hexadecimal string, used to uniquely identify file content.
Q: Will the files still open normally after modification?
A: Yes. We only append invisible bytes, which does not affect the parsing of the original content.
Q: Why did the file size increase after modification?
A: This is normal because approximately 1 to 10 bytes of random data are appended. In most scenarios, this is negligible.
We recommend keeping individual files under 5GB. Please verify file integrity after modification. For highly sensitive files, local processing is recommended. Refer to the on-page prompts for bulk upload limits.
This tool is suitable for non-security-sensitive scenarios (such as bypassing duplicate detection) but should not be used in security domains like password verification. Typical example: An empty file with an original MD5 of d41d8cd98f00b204e9800998ecf8427e will get a new random hash after appending a null byte.
