Hash & checksum · Adler-32
Calculate a Adler-32 value from your input, on this device.
Working with several files? Add the files you need, then keep this tab open until processing finishes. Large batches use more device memory.
Supported files: text/plain, */*
Local workflow
Pick a supported file from your device or drop it into the tool.
Choose the output, quality, or size options that matter for this job.
Your browser processes the file locally and prepares a fresh download.
01
The file picker accepts: text/plain, */*. The contents and encoding of the file must also be supported; an extension alone does not guarantee compatibility.
02
Compare the result with a reference made using the same algorithm and the same input. A changed byte or line ending changes the digest. A matching checksum does not, by itself, establish who created a file.
03
Adler-32 detects accidental errors; it is not a cryptographic digest.
Help
File contents are processed on your device. The browser downloads the tools it needs, but does not upload your file to LocalConvert for conversion.
Read the error shown by the tool. An unsupported format needs a different input; running out of memory may require a smaller file or a more capable device. Keep the tab open while the job runs.