Compare Files Online
Upload 2 files to instantly check if they are identical using SHA-256 checksums. Compare file names, sizes, and modification dates side by side.
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Free Online File Tools: Compare Files, Folders, PDFs & Excel
Get a fast answer in your browser — then move the recurring, high-stakes work onto your computer.
Compare files and folders, find duplicates, inspect metadata, and verify backups. No email required.
Find Duplicate Files
Upload up to 10 files to quickly identify duplicates. Great for cleaning up folders, verifying backups, or organizing downloads.
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Excel Duplicate Checker Online
Find duplicate values in Excel and CSV files online, with a per-column duplicate count. 100% private — runs in your browser.
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File Metadata Viewer
Extract detailed metadata from your files. View file sizes, types, and checksum information in one place.
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Compare Folders Online
Upload 2 folders to find missing, modified, or duplicate files. Recursive scan with SHA-256 verification. Maximum 100 files per folder.
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SHA-256 Checksum Calculator
Generate SHA-256, MD5, SHA-1, and CRC32 checksums for any file. Verify file integrity and detect corruption. Free online tool, no installation required.
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Quick answer → repeatable workflow
Found the problem? Keep it from coming back.
The browser tools are ideal for a one-off check. FolderManifest desktop handles whole folders, saved reports, offline work, safe duplicate cleanup, and Folder Monitor for changes over time.
Compare Files by Format
Check whether two files are identical, by file type — all free, in your browser, SHA-256 verified.
Compare PDF Files Online
Check if two PDFs are byte-for-byte identical.
Compare Excel Files Online
Compare two XLSX spreadsheets by content.
Compare CSV Files Online
Verify two CSV exports match exactly.
Compare JSON Files Online
Diff two JSON files by SHA-256 hash.
Compare XML Files Online
Check if two XML files are identical.
Compare Word Documents Online
Compare two DOCX files for changes.
Compare Text Files Online
Confirm two TXT files match exactly.
Compare Images Online
Check if two image files are identical.
Compare ZIP Files Online
Verify two archives are the same.
Choose a Free Tool by Task
Start with the result you need: prove two files match, compare folders, find duplicates, or verify a file hash.
Why Choose FolderManifest Free Tools?
Professional-grade file tools built for quick checks. No email required for browser tools.
100% Private
Files are processed only for comparison tasks and are not stored permanently after processing.
SHA-256 Verified
Compare files using cryptographic-grade SHA-256 checksums. The same algorithm used for security certificates and blockchain.
Clear Browser Limits
Browser tools have practical limits by design. Use FolderManifest desktop for larger folders and unlimited workflows.
Works Offline
Need offline workflows? FolderManifest desktop runs locally for full tracking, cleanup, and interactive reports.
Common Use Cases
Our free tools help you stay organized and verify your data throughout your workflow.
Before Backup
Compare files and folders to verify your backups are complete. Use checksum verification to ensure no files were corrupted during transfer.
After Migration
Confirm all files copied correctly when migrating to new storage. Detect missing or modified files instantly with folder comparison.
Audit Preparation
Document folder contents and verify file integrity before audits. Generate evidence of file unchanged status for compliance requirements.
Duplicate Cleanup
Reclaim storage space by finding and removing duplicate files. Use SHA-256 to identify byte-for-byte duplicates regardless of filename.
How We Compare to Other Tools
See why professionals choose FolderManifest for file integrity and duplicate detection.
| Feature | FolderManifest Free Tools | Online Competitors | Desktop Software |
|---|---|---|---|
| Privacy | Processed for comparison, not stored permanently | Often requires upload | Local processing |
| Hash Algorithm | SHA-256 (cryptographic-grade) | Often MD5 or CRC32 | Varies by tool |
| File Size Limits | Tool-specific limits | Often limited to 10-100MB | Typically unlimited |
| Email Required | No (browser tools) | Sometimes required | License purchase |
| Offline Access | Yes (desktop app available) | No, requires internet | Yes |
| Cost | Free forever | Free or freemium | $50-200+ one-time |
Frequently Asked Questions
Everything you need to know about our free online file tools
Are these online file tools really free?
Yes, all browser-based tools are free forever with no email required. Use them as much as you need for quick file comparisons and duplicate detection.
How do I compare folders online?
Upload two folders using our Folder Compare tool. The tool recursively scans both folders (up to 100 files each), calculates SHA-256 checksums, and shows you which files are unique to each folder, which are identical, and which have different content.
What's the file size limit for free tools?
File comparison handles files up to 10MB each. Folder comparison handles up to 100 files and 50MB per folder. For unlimited files and sizes, use FolderManifest desktop.
Are my files private and secure?
Yes. Files are processed in-memory on our servers and never stored on disk. After comparison, files are immediately discarded. We use HTTPS encryption for all transfers.
Can I find duplicate files with these tools?
Yes, use our Find Duplicates tool to upload up to 10 files. The tool groups identical files using SHA-256 checksums, so you can see which files are byte-for-byte duplicates regardless of filename.
Do I need to install any software?
No, all tools work directly in your browser. No downloads, installation, or account required. Just visit the tool page and start using it.
What's the difference between online and desktop versions?
Online tools are for quick checks with practical limits (file size, file count). The desktop version handles unlimited files, generates audit reports, tracks changes over time, and works offline.
How does SHA-256 verification work?
SHA-256 generates a unique cryptographic fingerprint for each file. Even a single bit change produces a completely different hash. Matching hashes mean files are 100% identical byte-for-byte.
Need more power?
FolderManifest can scan entire folders, generate audit-ready reports, and keep your file library organized automatically.