File Hash Calculator: SHA-1, SHA-256, SHA-384 & SHA-512
The File Hash Calculator reads a file in your browser and uses native WebCrypto to calculate its SHA-1, SHA-256, SHA-384, and SHA-512 hashes. It displays all four results as hexadecimal digests, and you can click a digest to copy it. Use the values to check downloads, compare files, or confirm integrity; processing happens in memory, and no file data is sent to a server.
The File Hash Calculator is a browser-based tool for calculating file hashes. It uses the browser's native WebCrypto to generate SHA-1, SHA-256, SHA-384, and SHA-512 digests for a file, then displays each result in hexadecimal. Use this file hash calculator to check a download, compare files, or get a digest you can copy for later reference.
The calculator reads the file and hashes it in memory, producing all four digests from the same input. Each algorithm generates its own hash value, so you can compare a result with a checksum that uses the matching algorithm. Click any displayed digest to copy it. The tool calculates hashes; it does not encrypt the file or turn the digest back into the original content.
A file is the content you want to check, while a hash is a compact value calculated from that content. Hashes are useful for checking whether files match: calculate a digest for each file with the same algorithm and compare the results. This makes the calculator helpful when verifying downloads or checking file integrity.
The calculation runs in your browser, and the file is processed in memory. Nothing is sent to a server, and the tool works offline once the page has loaded. You can use it without uploading your file to a remote service.
Developers and DevOps engineers can use the calculator to verify artifacts, check files received from another person, or compare a local file with a published checksum. It is also useful for anyone who wants to inspect the four supported hash outputs and copy a digest without installing a separate hashing tool.
Step 1: Choose the file you want to check using the tool's file input. The file is read and processed in your browser.
Step 2: Let the calculator generate the SHA-1, SHA-256, SHA-384, and SHA-512 hashes. It shows all four results for the same file.
Step 3: Review the hexadecimal digests and compare the relevant value with a trusted checksum or another file's hash.
Step 4: Click a digest to copy it, then paste it where you need to verify or record the file hash.
Use case: Verify a downloaded file by comparing its hash with a checksum supplied by a trusted source.
Use case: Compare two files by calculating their hashes and checking whether the values match.
Use case: Check the integrity of a file before using or sharing it by recording its digest and comparing it later.
Use case: Verify a hash value you were given by calculating the corresponding digest for a file and comparing the results.
Use case: Learn how SHA-1, SHA-256, SHA-384, and SHA-512 produce different digests by testing files with the calculator.
Use case: Produce a file hash locally instead of sending the file to a third-party page for processing.