I could not verify an official maximum size for files sent in personal Viber chats. That leaves the Viber attachment limit for documents, videos, and other chat files unconfirmed. The often-quoted 200 MB figure comes from guidance for Viber Business video templates, not from a verified rule for personal conversations. I also found no confirmed size differences among Android, iPhone, iPad, Windows, Mac, and Linux. Viber’s security page does not list attachment limits.
Viber file size limit by file type
The Viber material reviewed for this guide did not publish a maximum for personal-chat attachments as of October 13, 2026. I could not confirm separate caps for chat videos or documents, either. The careful answer is that the limit remains unverified here, not that a particular number applies.
| Sharing method | File type | Verified size limit | What the available material says |
|---|---|---|---|
| Personal Viber chat | Document or other attachment | Not verified | No official limit confirmed for this guide |
| Personal Viber chat | Video | Not verified | No official chat-video limit confirmed |
| Android, iPhone, or iPad | Chat attachment | No device-specific limit confirmed | No verified operating-system difference found |
| Windows, Mac, or Linux | Chat attachment | No device-specific limit confirmed | No verified desktop difference found |
| Viber Business video template | Campaign video | 200 MB, as reported by Messaggio | Third-party template guidance, not a personal-chat rule |
Personal chats, media messages, and business campaign assets are separate sharing contexts. A limit for one does not establish a limit for another. Read our guide to Viber file sending limits for more on the topic.
Viber maximum file size iPhone, iOS, Android, and desktop
I found no verified Viber documentation that sets separate attachment limits for iPhone, iOS, Android, Windows, Mac, or Linux. An attachment menu may look different across devices, but that does not confirm a different upload cap. If a file sends on one device and fails on another, check the app, connection, available storage, and file format before assuming the limit changed.
Does Viber set a different limit for each file type?
No published comparison of personal-chat limits for videos, photos, and documents could be confirmed. A video sent in a personal conversation is not the same as an asset uploaded for a business message template. Documents are another sharing case, and the material reviewed here does not establish a universal limit by file type.
Viber file limits depend on how you share
Personal chat files and videos

In a one-to-one or group conversation, users can attach files through the chat. I could not verify a published maximum size or an official list of accepted formats for these personal-chat attachments. Check the app’s message when you try to send a file. A limit from another provider or business service does not establish Viber’s personal-chat rule.
Viber Business video templates
Messaggio’s guide to its Viber Business video-message workflow reports a 200 MB video limit. It lists 3GP, M4V, MOV, and MP4 as accepted formats for that template process. The guide also reports a cover image size of 1600 × 1200 pixels and a maximum image file size of 2 MB. These figures come from How to Send Videos on Viber, Messaggio, a third-party campaign platform. They do not confirm limits for personal chats or establish a universal Viber policy.
| Question | Personal chat | Messaggio’s business-template guide |
|---|---|---|
| Does the 200 MB figure apply? | Not verified | Reported for its video template |
| Video formats | Not verified for chat | 3GP, M4V, MOV, MP4, according to Messaggio |
| Cover-image size | Not verified for chat | 1600 × 1200 px, up to 2 MB, according to Messaggio |
A business campaign upload can follow asset rules for that workflow, while a chat attachment follows the consumer app’s own rules. Do not use the 200 MB business figure to decide whether a personal message will send.
How to send a file on Viber
Attachment controls can vary by device and app version. These are general steps, not a live-verified list of screen labels: open the conversation, find its attachment control, choose a file or media item, review the selection, and tap send. If Viber rejects the file, check the possible causes below instead of retrying the same upload repeatedly.
Android
- Open the Viber conversation where you want to share the file.
- Tap the attachment control, often shown as a plus sign or paperclip.
- Choose a file or media source and select the item.
- Check the selection, then send it.
Menu names and choices can vary by Android version and Viber release. If the file does not appear in the picker, check Viber’s access to its storage location.
iPhone or iPad
- Open the recipient’s conversation in Viber.
- Open the attachment or media controls in the message composer.
- Choose an item from the available photo, video, or file options.
- Review the selection, then send it.
A document saved outside Photos may appear in the file-selection options rather than the photo library. Follow the controls in your installed app, since labels can change.
Viber desktop
Open the chat, select its attachment control, choose a file from the computer, and send it after checking the selection. If Viber cannot find the file, locate it in Finder or File Explorer and confirm that it is available on the computer. For setup and messaging help, see our Viber messaging and calling guide.
Check file size and format before sending
Checking the file first can help distinguish an upload limit from a format or access problem.
- Android: Open the file in a file manager and view its details. Labels vary by device maker.
- iPhone or iPad: Find the item in Files and open its information details. Photos and videos may also show details in Photos.
- Windows: Right-click the file and open Properties.
- Mac: Select the file in Finder and open Get Info.
Confirm the file name and extension, note its size, check that the device has storage available, and use a stable connection. An extension such as .mp4 identifies a container name; it does not confirm that a particular Viber sharing method accepts the file.
Compression can make a file smaller, though it may reduce image or video quality. Keep the original and send a compressed copy made with a video editor or archive tool. Data Compression, Wikipedia describes the general idea of reducing data size; it does not document Viber’s upload rules.
Why Viber may not send a file
A failed upload does not always mean the file exceeds a size cap. Check these possible causes in order:

- Size: If Viber reports that the file is too large, reduce it or share a link. The personal-chat cap remains unverified here.
- Format: Try exporting a copy in a common format suited to the content. A format listed for a business template does not automatically apply to chat.
- Connection: Switch to a stable Wi-Fi or mobile-data connection and try once more.
- Storage: Free space on the sending device. If possible, ask the recipient to check available storage, too.
- App state: Close and reopen Viber, then check the app store for an update.
- Recipient’s app or device: Ask the recipient to update Viber or try opening the file on another device, if available.
If an upload stalls, check whether the first copy arrived before sending it again. Viber backups serve a different purpose from file attachments. Our guide to backing up and restoring Viber chats covers that task.
Ways to send large files on Viber
If a file fails because of its size, choose a workaround that fits the file and the recipient:
- Compress or export a copy. Lower a video’s resolution or bitrate if the recipient does not need the original quality. Keep the untouched original separately.
- Split a large archive. Archive software can divide some files into smaller parts. Tell the recipient how to reassemble them, and check that both sides can use the same tool.
- Share a cloud-storage link. Upload the file to a service you trust, restrict access to the intended recipient, and send the link in Viber. Check for an expiration date and remove access when the recipient no longer needs the file.
A link points to a file hosted elsewhere; it does not change Viber’s attachment rules. Avoid public access for private documents, and do not send a password in the same chat as a sensitive file link. See our guide on sending large files through Viber for more options.
Viber maximum file size: quick answer
- Personal chat attachments: No official maximum was verified for this guide.
- iPhone, Android, and desktop: No verified platform-specific cap was found.
- Business video templates: Messaggio reports a 200 MB video asset limit for its template workflow. That does not confirm a personal-chat limit.
- If a send fails: Check the file size and format, connection, storage, app state, and recipient’s device. Try a compressed copy or a restricted-access link if needed.
I would not rely on an unsourced number for personal chats. Check Viber’s own help or in-app guidance for a limit that applies to your app version and sharing method.
Viber file size questions
What is the Viber maximum file size for personal chats?
I could not confirm a maximum for personal-chat attachments in official Viber material reviewed for this guide. Messaggio’s 200 MB figure concerns its Viber Business video-template workflow.
Is the Viber video size limit different from the document limit?
No confirmed personal-chat limits by file type were found. Viber may show different controls for media and documents, but I could not verify a published size comparison.
What is the Viber maximum file size iPhone or Android users can send?
I found no official attachment cap specific to iPhone, iOS, or Android. I could not confirm a separate limit for Windows, Mac, or Linux, either.
Does the 200 MB Viber video figure apply to personal chats?
Do not treat it as a personal-chat cap. Messaggio reports 200 MB for video assets in its Viber Business template workflow, which differs from sending a file in a personal conversation.
Can I compress a file or split it into parts?
Yes. A compression tool can make a smaller copy, or archive software can split a large archive, as long as the recipient can open or reassemble the parts. Compression may reduce media quality.
Is a cloud link safer than an attachment?
That depends on the storage service and its access settings. Limit access to the intended recipient, check expiration and sharing controls, and avoid public links for sensitive files. Viber describes its chat security features on its official security page, but that page does not set the privacy terms for a separate cloud-storage provider.