Use this generator to create an MD5 and SHA1 hash of a string.
A hash function is an algorithm that takes an input (or 'message') and returns a fixed-size string of bytes. The output, known as the hash value or digest, is unique to the given input. Hash functions like MD5 and SHA1 are one-way, meaning it is computationally infeasible to reverse the process and generate the original input from its hash.
Generates both of the most widely-used hash algorithms, MD5 and SHA1, from a single input.
No complex settings. Just enter your text, click the button, and get your hashes instantly.
All hashing operations are performed securely on the server, ensuring accurate and reliable results every time.
Convenient copy buttons next to each hash allow you to quickly copy the value you need.
Get instant results for your text strings, no matter the length. The tool is optimized for speed.
This tool is available for free use without any restrictions or usage limits.
No. The key difference is that encryption is a two-way process; what is encrypted can be decrypted with the correct key. Hashing is a one-way process. You cannot "un-hash" a value to get the original input. This makes it ideal for verifying data integrity, not for securing data that needs to be retrieved later.
For security-related purposes like storing passwords, MD5 is considered cryptographically broken and should not be used. It is vulnerable to "collision" attacks. However, it is still commonly used for non-security purposes, such as a checksum to verify file integrity against unintentional corruption.
SHA1 is another popular hash function. While it is stronger than MD5, it is also considered insecure for most cryptographic uses today. More secure alternatives like SHA-256 (part of the SHA-2 family) are recommended for security applications.
Hashing is used in many areas, including: verifying the integrity of files after download, storing password hashes (with salting) instead of plain text passwords, and in data structures like hash tables for rapid data retrieval.