Calculate SHA256 Hashes
cross-browser testing tools
World's simplest online SHA256 checksum calculator for web developers and programmers. Just paste your text in the form below, press the Calculate SHA256 button, and you'll get the SHA256 hash digest of your text. Press a button – get an SHA256. No ads, nonsense, or garbage.
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Announcement: We just added three new tools categories –
Text tools, Image tools, and Math tools. Check them out!
Text tools, Image tools, and Math tools. Check them out!
Using an SHA256 Digest Calculator in Cross-browser Testing
An SHA256 digest calculator can be useful if you're doing cross-browser testing. For example, if your web application needs to validate data integrity and make sure no one tampers with the data, then as soon as the data is submitted, you can calculate its SHA256 cryptographic checksum. After the checksum is calculated, even the slightest change in the original data will completely change the checksum value. To make sure the SHA256 is correctly calculated, you can write unit tests for it. The input data for the test case will be a string or a longer text fragment, and the output will be the hash. To write a failing test case for this scenario, you can change any character in the output hash and the input data will no longer match the hash value. Additionally, you can use use this utility to check if the given hash was calculated for the given data.
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Pro tip: You can use ?input=text query argument to pass text to tools.
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