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.
51K
Announcement: We just launched Online Fractal Tools – a collection of browser-based fractal generators. Check it 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.
Looking for more web developer tools? Try these!
Text Columns to Rows Converter
Text Rows to Columns Converter
Text to HTML Entities Converter
UNIX time to UTC time Converter
UTC time to UNIX time Converter
Seconds to Human Readable Time
Binary Bitwise NAND Calculator
Binary Bitwise XNOR Calculator
Binary Bit Rotator to the Left
Binary Bit Rotator to the Right
Text Character Rotator to the Left
Text Character Rotator to the Right
Number of Letters in Text Counter
Number of Words in Text Counter
Number of Lines in Text Counter
Number of Paragraphs in Text Counter
Decimal to Scientific Converter
Scientific to Decimal Converter
Celsius to Fahrenheit Converter
Pro tip: You can use ?input=text query argument to pass text to tools.