HASHTAGFILE

The first 100 % private and secure file tagging & verification tool.

Take photos, tag them instantly, and share a verifiable proof in seconds.

Loading...

Upload & Tag File

Drop your file here

or click to browse • Max 50MB

e.g., Proof-of-Contract.pdf

Use the upload box to activate your camera, take a photo, verify it instantly, and share it with a proof certificate.

Email attachments

If selected, the original file will be attached in addition to the email.

How it works

Upload your file

We instantly create a unique digital fingerprint (SHA-256 hash).

Receive your certificate

A timestamped proof confirms the file existed at this exact moment.

Verify anytime

Anyone can re-upload the same file later to confirm authenticity and that it is unchanged.

Capture & Verify instantly

You can take a photo directly with your camera and create a verifiable, unchangeable proof within seconds. Perfect for documenting contracts, handovers, damages, receipts, or anything that needs to be protected.

You can optionally share the verified file and certificate via email or messenger. Shared files are stored temporarily (24 hours).

Your file is never stored or transmitted except when you choose to share it. In that case, a secure 24-hour download link is generated for delivery.

Use hashtagfile.com to prove that your files are real, unchanged, and verifiable.