Lock a photo, screenshot, video, or file so nobody can alter it without it showing — and share a proof anyone can check themselves, in seconds.
⚡ 5 seconds🆓 free, no account🔐 never leaves your device
🔗 You were sent a sealed proof
Drop the file below to check it's the exact, unaltered one.
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↓ drop the file to verify
⚠ Sealing needs a secure page. Open Sealed over https:// or localhost — on a plain http:// connection your browser won't let it make the fingerprint, so nothing will seal.
🗂️
Drop a file to seal it
photo · screenshot · video · pdf · anything — or click to choose
it's fingerprinted right here on your device. the file never uploads.
🔒 Sealed ✓
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send the share link to anyone — they open it, drop the file, and see for themselves whether it's the exact, unaltered one. no account, no trust in us.
what people seal — 20 real ways
🧾 receipts & disputes
🎨 your work
💸 money & handoffs
🏠 personal & trust
🏠
Move-in / move-out
Seal your apartment photos at move-in. At move-out, prove they're the same shots — not re-edited to argue over damage.
🚗
Rentals & borrowed gear
Seal the "before" photos at pickup. The scratches you flagged stay provably unedited when you return it.
🛡️
Insurance claims
Seal your damage photos so the adjuster gets the exact, untouched images — and you can prove you didn't doctor them.
💬
Screenshot evidence
Seal a screenshot the moment you take it. Later, prove it's the unedited capture — no one can claim you tampered with it.
🛠️
Before & after
Seal "before" photos of a repair or a job, so the original condition can't be argued away once the work is done.
🎨
Art & designs
Seal the file. A reposted or AI-scraped copy either matches your sealed original — or it doesn't.
📷
Photos
Prove a published image is your exact, unedited shot — not a crop-and-claim of someone else's.
🎵
Music & demos
Seal a track before sending it to a label or collaborator; prove they got the exact file you sent.
✍️
Writing
Seal a manuscript or script before you submit it to an agent, publisher, or contest.
💼
Client deliverables
Seal the final file you hand over. "That's not what you sent me" becomes something anyone can check.
🧾
Invoices
Seal an invoice you issue; the payer confirms the amount and bank details weren't swapped. (Invoice fraud is a top scam.)
📄
Contracts
Both sides seal the final PDF; prove the copy in hand is the exact one everyone agreed to — no clause quietly changed.
📤
Files to your lawyer / accountant
Seal it, share the fingerprint separately. They confirm nothing was tampered with in transit.
🛒
Marketplace deals
Seal the "as described" condition photos so neither buyer nor seller can swap them in later.
🔑
Sensitive documents
Confirm a forwarded copy is untouched — nothing slipped in or changed along the way.
👨👩👧
Family photos & video
Seal the originals. Later, prove a precious photo is the untouched original — not an AI-"enhanced" version.
🩺
Medical records
Seal the PDF your clinic gave you; a second-opinion doctor confirms it's the unaltered original document.
💾
Backups & archives
Seal an archive. Months later, confirm it hasn't been corrupted or quietly tampered with.
⬇️
Downloads & installers
A publisher's fingerprint lets you confirm your download is the real file — not a malware-laced copy.
🎓
Assignments & theses
Seal your file at the deadline; prove the submitted version is the exact one you finished.
Sealed proves a file is the exact, unaltered one. When you also need to prove when it was made or who made it, pair it with a dated note — or with full korg, which adds a trusted date stamp and a signature only you could've made.
how it works
01
Drop it
Your file gets a unique fingerprint, computed on your device. The bytes never leave.
02
It's sealed
That fingerprint is locked. Change a single pixel and it won't match anymore.
03
Share the proof
Anyone can check a copy against your seal — themselves, offline, no account.
💡 keep your seal valid: share the original file — attach it, AirDrop it, or "send as document." A screenshot or a chat-app copy (Instagram, WhatsApp, iMessage "low quality") re-compresses the file and changes its bytes, so it won't match. Renaming a file is fine; editing or re-saving it isn't.
got a file + a proof? check it
paste a proof (or a fingerprint)
drop the file to check it against that proof
straight talk: Sealed proves a file is exactly the same — not changed by even a hair since it was sealed. It can't tell if a stranger's random photo is "fake" (nothing can, without the original to compare). Seal yours, and it's locked: anyone can prove a copy matches it, or doesn't. That's unaltered — it's not a claim about when it was made or who made it, and not a claim that the content is "true." When we can't prove something, we say so — we never fake it. (Proving when and who takes a trusted date stamp and a signature — that's full korg; this page proves the file is unchanged.)