SHA-256 first
Generate SHA-256 for modern download verification while still seeing SHA-384, SHA-512, SHA-1 and MD5 when a source publishes older formats.
Free browser checksum tool
File Hash and Checksum Checker for downloaded files before you install, upload or archive them
Upload one or more files and generate SHA-256, SHA-384, SHA-512, SHA-1 and MD5 values in your browser. Paste an official checksum from a download page, release note or vendor email to see whether the file matches exactly or only after case and whitespace cleanup.
Browser-side hash check
Upload files to the File Hash and Checksum Checker
Drop files here to calculate hashes locally. This checker does not upload your files, and the checksum comparison updates whenever you edit the pasted value.
The checker extracts common hexadecimal checksum lengths and also checks a lowercase, whitespace-cleaned version.
Files stay on your device. Hashes are generated locally with browser APIs plus a local MD5 implementation.
Try sample checksum values
Hash and checksum results will appear here
Upload one or more files to see filename, file size, SHA-256, SHA-384, SHA-512, SHA-1, MD5, pasted checksum, exact match status, normalized match status, copy buttons and a downloadable report.
Hash verification summary
File Hash and Checksum Checker workflow for file integrity
Confirm that a downloaded file, archive or installer still matches the checksum published by its source.
Local upload for file hashing
Upload one or more files. The browser reads raw bytes locally and generates SHA-256, SHA-384, SHA-512, SHA-1 and MD5 values.
Official checksum comparison
Paste the official checksum and review exact matches, mismatches and case or whitespace cleaned matches for each file.
Results export for verification
Copy individual hashes or download a report with filenames, sizes, hash values and match status.
File Hash and Checksum Checker features for trusted downloads
Use this tool when you need byte-level file identity, not upload eligibility or attachment formatting.
MD5 and SHA-1 compatibility
Compare older checksum formats when legacy projects, mirrors or archives publish MD5 or SHA-1 values.
Checksum paste cleanup
Detect exact matches and matches after lowercase and whitespace cleanup, so line wrapping or uppercase checksum text is easier to review.
Multiple file hashing
Hash several downloads or release assets in one pass and compare the same official checksum text against every file.
Copy individual hashes
Copy SHA-256 or MD5 values directly from each result when you need to paste evidence into a ticket, release note or support reply.
Downloadable checksum report
Save a plain text report with filenames, file sizes, generated hashes, pasted checksum and match status for later review.
How to use the File Hash and Checksum Checker
The File Hash and Checksum Checker proves whether bytes match a published checksum; it cannot prove that the publisher itself is trustworthy.
01
Upload files for local hashing
Add the installer, archive, ISO, document or release asset you downloaded. The browser calculates SHA-256, SHA-384, SHA-512, SHA-1 and MD5 from the actual file bytes.
- Use the source file, not a renamed shortcut
- Large files may take longer because the browser reads the full file
02
Paste the official checksum
Copy the checksum from the official download page, signed release note, package index or vendor message and paste it into the comparison box.
If the source publishes a checksum file with filenames, paste the relevant line or the whole block and review the matched algorithm shown in the result.
Paste checksum 03
Review checksum match results
A mismatch means the file bytes differ from the pasted checksum. Download again from the official source, check that you selected the right file, and avoid running or sharing the file until the mismatch is understood.
- Exact match is the cleanest result
- A normalized match usually means only case or whitespace differed
File Hash and Checksum Checker FAQ
Practical answers for interpreting checksum results before trusting a file.
What does this checksum tool verify?
It verifies byte-for-byte identity against a pasted checksum. If the generated hash matches the official value, the file you uploaded has the same bytes represented by that checksum.
Does this checksum tool upload my files?
No. It reads files in your browser tab, calculates hashes locally, and compares the pasted checksum without sending the file to a server.
Which hash formats are supported?
It generates SHA-256, SHA-384, SHA-512, SHA-1 and MD5. SHA-256 is the most common modern download checksum, while SHA-1 and MD5 are included for legacy checksum pages.
Why can exact match and normalized match differ?
Exact match compares the checksum text as pasted. Normalized match lowercases checksum text and removes whitespace, which helps when official checksum values are uppercase or wrapped across lines.
What should I do if a mismatch appears?
Confirm that the checksum belongs to the same file and version, download the file again from the official source, and avoid installing or sharing it until you understand the mismatch.
Can the File Hash and Checksum Checker prove a file is safe?
No. A matching checksum proves file integrity against the published value, but it does not prove the publisher is safe or that the original file is free of malware.
Run the File Hash and Checksum Checker before trusting a download
Generate SHA-256, SHA-384, SHA-512, SHA-1 and MD5 locally, compare the official checksum, then copy or download the verification result.
For upload size, MIME type and attachment filename checks, use the File Attachment Checker instead.