Parity Check Calculator

Calculate odd and even parity bits online, supporting parity bit generation and verification for data in various formats such as binary, hexadecimal, and text.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

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Set validation rules first, then enter data or choose a file. Generate parity bits, verify existing parity bits, batch process, and download as a package.

Parity Settings

Set the input format, parity type, and output mode before processing.

Set before processing

Single Input For small binary, hex, decimal, or text data. File batch Select multiple TXT, HEX, CSV, or BIN files for unified processing.

Input format Mode Parity Type Parity Bit Position Output format Data split Decimal width Binary grouping Result separator Text Encoding Keep original data in output

Results

View the first 20 details and copy results; in batch mode, download a ZIP with all results.

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Output Content

Calculation Notes

暂无结果

#	Source	Type	Binary	Number of 1s	Check digit	Results	Status

Instructions

Software Usage Instructions

Set validation rules: First choose single input or batch file processing, then set the processing mode, parity type, parity bit position, output format, data splitting method, bit width, and text encoding.
Select the input format: Single input supports binary, hexadecimal, decimal, and text; batch files support auto-detection, or you can specify binary text, hexadecimal text, decimal text, plain text, or raw bytes.
Enter data or select files: For single input, you can paste data directly or load sample data; for batch files, you can select multiple txt, hex, csv, bin, or dat files.
Generate or verify: Generate mode calculates and adds the parity bit based on the data bits; verify mode checks whether data that already includes a parity bit complies with odd or even parity rules.
View results: Results show the source, parity type, binary data, number of 1s, parity bit, output result, and status. Batch results display only the first 20 detail entries, while downloads include the complete results.
Save and download: You can save the current parameter settings. After processing is complete, you can copy the results and download the text; batch processing can download a ZIP archive, with result file names kept the same as the original files and sequence numbers automatically appended when names are duplicated.

FAQ

A: Even parity requires the total number of 1s in the data and parity bit to be even; odd parity requires the total number of 1s to be odd. Both are used to detect bit errors in data transmission.

A: Choose generate mode when you need to append a parity bit to the original data; choose verify mode when the existing data already includes a parity bit and you need to check whether it passes.

A: The parity bit position depends on the communication protocol or data format convention. A common practice is to place it at the end, but in some protocols it may also be placed at the beginning. When using it, make sure the sender and receiver follow the same rules.

A: You can enter hexadecimal content such as A5, 3F, 00, and FF. Multiple data items can be separated by spaces, commas, or line breaks. Data with a 0x prefix is also supported.

A: Text mode first converts the text to bytes using the selected encoding, then converts it to binary for checksum calculation. UTF-8 is suitable for mixed Chinese and English content, while ASCII is suitable for English-only characters.

A: Parity checking is suitable for detecting an odd number of bit errors, such as a single bit flip. If an even number of bits are incorrect at the same time, the check result may still pass, so CRC and other checksum methods can be combined for high-reliability scenarios.

A: The result files in the ZIP will keep the original file names. If multiple files have the same name, a sequence number will be appended to the file name, such as data.txt and data(1).txt, to distinguish them.