Profile Assets
Profile Photo
| Dimensions | 400 × 400 px recommended |
|---|---|
| Aspect Ratio | 1:1 |
| Max File Size | 10 MB |
| File Formats | JPG, PNG |
| Notes | Displayed as a circle in chats and contacts |
Community / Channel Icon
| Dimensions | 400 × 400 px |
|---|---|
| Aspect Ratio | 1:1 |
| Max File Size | 10 MB |
| File Formats | JPG, PNG |
| Notes | Square icon representing a Viber Community or Channel |
Community Cover Photo
| Dimensions | 1920 × 768 px recommended |
|---|---|
| Aspect Ratio | 5:2 |
| Max File Size | 10 MB |
| File Formats | JPG, PNG |
| Notes | Wide banner displayed at the top of the Community page |
[Ad]
Shared Image Specs
Chat / Message Image
| Max File Size | 200 MB |
|---|---|
| File Formats | JPG, PNG, GIF, WEBP |
| Notes | Images shared in personal or group chats; GIFs play inline |
Sticker (Custom)
| Dimensions | 490 × 490 px |
|---|---|
| Aspect Ratio | 1:1 |
| Max File Size | 500 KB |
| File Formats | PNG, WEBP |
| Notes | Transparent background required for sticker packs |
Video & Media Specs
Chat Video
| Max File Size | 200 MB |
|---|---|
| File Formats | MP4, MOV |
| Resolution | Up to 1080p |
| Max Duration | Up to 3 minutes in chat |
| Notes | H.264 recommended for broad device compatibility |
Voice Message
| File Formats | M4A, MP4 |
|---|---|
| Max Duration | No hard limit (practical limit ~15 minutes) |
| Notes | Recorded in-app; transcription available in some regions |
Text & Character Limits
Chat Message
| Character Limit | 7,000 characters |
|---|
Bio / About
| Character Limit | 70 characters |
|---|
Community Name
| Character Limit | 30 characters |
|---|
Community Description
| Character Limit | 200 characters |
|---|
Business Messaging Specs
Business Message Image
| Dimensions | 800 × 533 px recommended |
|---|---|
| Aspect Ratio | 3:2 |
| Max File Size | 1 MB |
| File Formats | JPG, PNG |
| Notes | Promotional image sent via Viber Business Messages API |
Chatbot Message — Text
| Character Limit | 1,000 characters |
|---|---|
| Notes | Text body for bot-initiated transactional or promotional messages |
Rich Media Message
| Dimensions | 400 × 400 px per card |
|---|---|
| File Formats | JPG, PNG |
| Notes | Carousel-style rich messages via Business API; up to 6 cards |