Digital evidence
Certify WhatsApp by email
Export the chat from WhatsApp to certify@tintatech.com and get the certificate by email.
What you upload
Email attachments
Limit
Up to 5 files of 25 MB
Your file
Passes through our server and is deleted
Takes
A few minutes
Android
- Open the chat in WhatsApp.
- Tap ⋮ (More options) → More → Export chat.
- Choose whether to include media.
- Choose your email app and enter certify@tintatech.com as the recipient.
- Send the email.
iPhone
- Open the chat in WhatsApp.
- Tap the contact or group name at the top.
- Scroll down and tap Export chat.
- Choose Mail (or your email app) and enter certify@tintatech.com as the recipient.
- Send the email.
- We reply to the same address with the certificate, the link to verify it and the PDF. It usually takes a few minutes.
- Write from a real mailbox such as Gmail, Outlook or iCloud: we do not reply to senders that cannot be verified.
- If the email is too large to send, export the chat without media. Up to 5 attachments per email are accepted.
- By email, the file passes through our server to compute its fingerprint and is deleted as soon as it is processed. If you prefer it never leaves your device, use the web upload version.
Certify WhatsApp by email
Export the conversation from WhatsApp straight to certify@tintatech.com and within minutes you get the certificate by email: the file's fingerprint, the timestamp date, a link to verify it and the PDF. It is the fastest way from your phone.
What you get
- A certificate with the SHA-256 fingerprint of every file you attach
- The date and time of a timestamp issued by a third party
- A public link anyone can use to verify the certificate
- The certificate PDF in the same reply email
How it works
- 1
Export the chat
In WhatsApp, open the conversation and use Export chat. On Android it is in the three-dot menu, under More; on iPhone, tap the contact or group name.
- 2
Send it to certify@tintatech.com
Choose your email app and enter that address as the recipient. You can include media or leave it out.
- 3
Get the certificate
We reply to the same address with the certificate, the verification link and the PDF.
When is it useful?
- Anyone who needs to keep a conversation as a record straight from their phone
- People in a work, family or business dispute who want to preserve their messages
- Lawyers who ask clients to send their chats in an orderly way
- Anyone who would rather not download files or use a computer
What it proves and what it does not
It proves
- That the exported file had exactly that content at the timestamp date
- That any later change to the file is detected when it is verified
It does not prove
- Who actually wrote the messages or that what was said is true
- That the conversation is complete if messages were deleted before exporting
- It does not replace a notary or guarantee that a court will accept it
- By email, the file passes through our server to compute its fingerprint and is deleted as soon as it is processed. If you prefer it never leaves your device, use the web upload version.
- We only reply to verifiable senders, such as Gmail, Outlook or iCloud.
- Up to 5 attachments per email are accepted. If the chat with media is too large to send, export it without media.
More detail in how certification works.
What happens to your file?
The email and its attachments are used only to compute the fingerprint and issue the certificate, and are deleted as soon as they are processed. They are never forwarded to anyone. Privacy policy.
Frequently asked questions
How do I certify a WhatsApp chat from my phone?
Export the chat with WhatsApp's Export chat option, choose your email app and send it to certify@tintatech.com. You get the certificate in the same inbox.
How long does the certificate take?
Usually a few minutes. If it does not arrive, check your spam folder and that the address is spelled correctly.
Do I need to create an account?
No. Your email works as your account: the first time you write, it is created automatically and linked to your certificates.
Is it the same as uploading the chat on the web?
The certificate is the same. The difference is that by email the file passes through our server and is deleted afterwards; on the web the fingerprint is computed on your device and the file is not uploaded.
Will it hold up in court?
It proves the file existed as-is on that date, but it does not replace a notary or guarantee that a court will accept it. Ask a lawyer.