Choose your file
Select any file from your device.
Developer Tools
UUID Generator Online
Generate random UUID v4 identifiers online free — useful for developers and testing.
Runs in your browser — no uploadChoose your UUID
Drag & drop here, or pick a file from your device
UUID
Processed on your device — size is limited only by your browser's memory
Computes a SHA-256 checksum locally. Useful to verify file integrity after download.
Working...
🔒 This tool works offline inside your browser tab. Your file is never uploaded, and results are discarded when you close the page.
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About this tool
UUID Generator Online
Calculate a cryptographic hash fingerprint of a file on your device. The file never leaves your browser.
Adjust the settings
Click Generate Hash and copy the SHA-256 result.
Download
The finished file is created on your device and downloads straight away.
UUID Generator Online FAQs
Is filecompress.in really free?
Yes. All 100+ tools are free with no daily limit. Optional accounts unlock higher quality presets.
Do my files get uploaded?
No. Compression runs in your browser tab. Check the network panel — no file is sent.
How do I compress PDF to 100KB?
Open Compress PDF to 100KB, upload your PDF and pick a compression level. The tool targets your size limit.
Can I make a passport photo online?
Yes. Use Passport Photo Maker — upload a portrait, pick 2×2 inch size and download a white-background photo.
Does this work on mobile?
Yes, on Android, iPhone and iPad browsers. Very large files depend on device memory.
Will the visit counter reset when you update the site?
No. Visit counts are stored in our MySQL database, not in the static files we deploy.