Use this free SHA1 generator app to create a hash for your document or any text. If you need to generate SHA1 hashes for multiple files, just upload your files. You will get the result in the form of separate files containing hashes, as well as a table with hashes for each file. In addition, you can simply specify any text or string in a special field and get the same result.
Our hash generator supports the following hashing algorithms: MD5, SHA1, SHA256, SHA384, SHA512. These algorithms are implemented using special mathematical hashing functions. The result of calculation of a hash-function is called a hash, hash sum, or hash code. It is a byte array, but for ease of use it is converted to a hexadecimal string containing text.
Hashing has many important features that have become very useful in many digital areas. One of the features of hash functions is the result of a fixed length. Regardless of the size of your file, no matter how big it is or consists of just one byte, the hash value of the function for both will have the same length. The next feature is that any two arrays of source data that differ by only one bit will have very different hash values.
Also, the result of hash functions are usually irreversible. This means that having a hash sum string, you will not be able to calculate the value of the source data. You can only iterate over all possible values, which is inexpedient in practice. These features and many others make cryptographic functions very useful, for example, for verifying data integrity, data encryption, storing database passwords or creating digital signatures. For example, to implement the ability to verify the integrity of your file, it is enough to select the desired type of algorithm, select the file and generate a hash. Now that you have a hash calculated for your file, you can provide your file and its hash to anyone and be sure that after downloading your file and hash, the recipient will always be able to understand whether the file was corrupted during download. To do this, he needs to calculate the hash for the file again using our service and compare it with yours.
You can use this online service without installing it on your local computer. No matter what platform you're on, be it Windows, Linux, macOS or Android, the result is fast and accurate.
Simple way to generate SHA1 hash
Main hash algorithms are supported
It is possible to generate hash for files and for any text
The result is returned as text files containing a hashes and as a table of hash strings
Instantly download or send output SHA1 hash file as email attachment or just copy generated hash string from the table
How to Generate SHA1 Hash for document
Open our free website and choose the SHA1 Generator application
Go to the page of the hashing algorithm you need
You can select multiple files to generate SHA1 hashes
Also you can directly enter a text to be SHA1 hashed
Click on the "Generate Hash" button and get the generated hash file, which you can download or send to the mail
You can also get the SHA1 hash string directly from the result text area.
Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period
FAQ
❓ How can I generate SHA1 hash of file?
First, you need to add a file for hash generator: drag & drop your SHA1 file or click inside the white area for choose a file. Then click the "Generate Hash" button. When SHA1 generating is completed, you can download result file containing hash.
⏱️ How long does SHA1 hash generation?
This hash generator works fast. You can generate SHA1 hash for a file in a few seconds.
🛡️ Is it safe to calculate SHA1 hash using free generator?
Of course! The download link of result files will be available instantly after merging. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. Hash generation is absolutely safe.
💻 Can I get SHA1 hash on Mac OS, Android or Linux?
Yes, you can use free Hash Generator app on any operating system that has a web browser. Our SHA1 hash generator works online and does not require any software installation.
