Try it yourself
Try Encypher in 30 seconds
For anyone: paste text, sign it, verify it. Or sign an image or PDF. No account needed.
$0
No account, no API key
44
Media types Encypher signs and verifies
3
Steps: paste, sign, verify
More demos: for AI teamsfor publishersper-sentence signing liveprivate team walkthrough
Paste your content
Sample article pre-filled. Edit it or paste your own.
Or sign a file
The demo signs JPEG, PNG, WebP, TIFF and PDF. Audio, video and Office files are verify-only here. Images up to 8 MB, PDF up to 10 MB, five files an hour. That is the scope of this free demo, not the list of formats Encypher signs.
To check an audio, video or Office file, use the free verification tool. No account needed.
Free to try
Paste your text and go. No account, no setup.
Invisible to readers
The mark is hidden inside the text. Anyone reading it sees exactly what you wrote, nothing different.
Anyone can check it
It uses an open standard Encypher helped create, so anyone can confirm where the text came from.
Why you can trust it
Built on the open standard we co-authored
- 1
Open standard
Built on the C2PA standard for unstructured text, which Encypher authored; the text standard published January 8, 2026.
- 2
Keyless verification
Anyone can verify signed content for free, with no account and no API key.
- 3
Travels with the text
The mark is embedded invisibly and survives copy and paste, so proof goes wherever the content goes.
Verify on any webpage
Install the free Encypher Verify Chrome extension to detect C2PA watermarks automatically as you browse. No account required for verification.