Originals retained
Work from a copy, inspect the result, and keep the source file unchanged.
FILES / file-compare
File compare.
Compare two files by size, type, and hash.
Result
The result will appear here.
ABOUT THE TOOL
File compare, explained clearly
File compare provides a focused browser workflow for this task: Compare two files by size, type, and hash. The page keeps the essential input, controls, result, preview, copy, and download actions together so that a one-off job can be completed without installing a desktop application. Selected documents are processed in the current browser tab and are not intentionally uploaded by the site. Browser tools work best with ordinary-sized, structurally valid files without unusual permission restrictions. Very large, damaged, scanned, font-heavy, or encrypted documents may not be handled completely. Keep the original and inspect every relevant page or entry before replacing it. The result should be treated as a practical working copy; standards, unusual source structures, and browser differences can still require a dedicated application or a second validation step.
Document preview
Every change is kept close to its result, so mistakes and unexpected output are easier to notice.
New-file export
Use the same controls with a representative sample, then verify the final copy before it leaves the browser.
FEATURES
A complete File compare workflow
Compare two files by size, type, and hash. The page keeps the workflow understandable from the first input to the final checked result.
A focused workspace
The controls for File compare stay together instead of being split across several screens.
Immediate feedback
Results, previews, and status messages make it clear what changed after each action.
Browser-first processing
The core workflow runs in the current browser tab without requiring a desktop installation.
Copy or download
Move the checked result into the next step using the output action provided by the tool.
Useful starting examples
The supplied sample shows the expected input shape and can be replaced with your own material.
Clear operating limits
The page explains privacy, compatibility, quality, and verification limits before important use.
HOW TO
How to use File compare in four steps
Start with the example already shown or replace it with your own material. Choose the file or files requested by the page; tasks where order matters process files in selection order. Enter page ranges, an output name, text, or other options, run the tool, and wait for completion. Review the summary, preview, or file list before downloading the new file. If a document cannot be read, check for corruption, password restrictions, or an unsupported structure and retry with a smaller sample. Keep a copy of every original before batch work, store outputs separately, and verify them before archiving or sharing. When several settings are available, change one setting at a time so its effect is easy to identify. A successful message means the browser completed the requested operation, not that every downstream system will accept the result. Save a separate copy, compare it with the source, and repeat the operation with a representative edge case before using it in important work.
Prepare the source
Start with the sample or add a clean copy of the text, data, media, file, or address requested by the tool.
Set the options
Choose the format, size, mode, range, quality, or other controls that match the intended destination.
Run and inspect
Process the input, read the status message, and compare the preview or output with the source.
Save a checked copy
Copy or download the result, keep the original, and test one representative edge case before important use.
BOUNDARIES
Know what the result can and cannot prove
File compare is a browser utility for preparing, inspecting, or transforming a working copy; it is not an authority, certification service, archival system, security audit, or substitute for professional software required by a regulated workflow. Browser memory, supported formats, fonts, codecs, locale rules, network policies, source quality, and unusual file structures can all change or limit the result. Keep the original material, remove passwords, tokens, personal records, and confidential production data, and do not treat a successful status message as proof that another application will accept the output. Open every downloaded file, compare important values and visible details with the source, and validate a representative edge case in the real destination. You are responsible for having the right to process the input and for deciding whether the checked result is suitable to store, publish, execute, or share.
Keep the source
Do not replace an important original until the exported or copied result has been opened and checked.
Protect private data
Remove credentials, personal records, private identifiers, and confidential production content before processing.
Verify downstream use
A successful browser operation does not guarantee acceptance by every application, service, standard, or device.
ASK
Common questions before you begin
Do I need to install an app or create an account?
No. The tool works directly in the browser and its main workflow does not require registration.
Where is my input processed?
The normal workflow runs in the current browser tab. A tool that explicitly tests a URL or network condition may contact the address or service named on that page.
Does the tool overwrite my original?
No. Copy and download actions create a separate result. Keep the original until you have inspected the new output.
Why can a result differ between browsers?
Browser support, fonts, codecs, memory, security rules, locale, and file implementations can affect processing and rendering.
Can I use the result in production?
Use it as a working copy first. Validate it against the target application, official specification, and a representative real sample.
What should I do when processing fails?
Check the input structure and supported format, reduce the sample size, remove unusual restrictions, and retry one option at a time.
RECENT