WebP to 3GP Converter
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Supports: WEBP
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
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Need help?How to Convert WebP to 3GP
- Upload Your WebP Files — Click "Choose Files" or drag and drop your WebP images. Upload multiple images to create a slideshow video.
- Choose Merge Strategy — Under Merge Strategy, select "Merge images" to combine all photos into a single 3GP video, or "Video per image" to create separate 3GP files for each image.
- Set Image Duration — Under Image Duration, choose how long each image displays: from 1/60 second (single frame at 60fps) up to 10 seconds per frame. Use 3-5 seconds for standard slideshows.
- Set Background Color — Under Background Color, choose a color (Black, White, or other colors) for letterboxing when images don't match the video aspect ratio.
- Set Video Quality — Under File Compression, choose from: Quality Preset (Highest through Lowest), Target File Size %, Specific File Size, Constant Bitrate, Variable Bitrate, Constant Quality (CRF), or Constraint Quality.
- Adjust Resolution (Optional) — Under Video Resolution, choose presets (480p, 360p, 240p, etc.) or custom dimensions. 3GP is designed for small screens.
- Convert & Download — Click "Convert" and download your 3GP video.
Why Convert WebP to 3GP?
3GP is a mobile video format developed by the 3rd Generation Partnership Project (3GPP) for GSM mobile networks. It is designed for small file sizes and low-bandwidth playback on mobile phones. Converting WebP images to 3GP creates lightweight video slideshows for sharing on feature phones and legacy mobile devices, sending via MMS (multimedia messaging) where file size limits apply, creating video content for low-bandwidth mobile networks, and preparing image sequences for devices that support 3GP but not WebP.
WebP to 3GP Settings
| Setting | Default | Options |
|---|---|---|
| Video Codec | H.264 | H.264, MPEG-4, H.263, others |
| Audio Codec | AMR | AMR (Narrow Band), AAC, MP3 |
| Merge Strategy | Merge images | Single video or per-image |
| Background Color | Black | Black, White, and 20+ colors |
| Image Duration | Configurable | 1/60s to 10 seconds per frame |
3GP Format Overview
| Feature | 3GP |
|---|---|
| Developer | 3GPP (GSM consortium) |
| Video codec | H.264 (default), H.263 |
| Audio codec | AMR (default) |
| Max resolution | Typically 320×240 or 640×480 |
| File size | Very small |
| Best for | Feature phones, MMS, low-bandwidth |
Why is AMR the default audio codec?
AMR (Adaptive Multi-Rate) is the native audio codec for 3GP — it was designed for voice on GSM mobile networks. AMR produces very small files but is voice-optimized. Since WebP images don't contain audio, the 3GP output will be a silent video regardless of the audio codec setting.
Why is the Trim option not available?
Trim is hidden for image-to-video conversions because there is no existing video timeline to trim. Control the video length by adjusting Image Duration and the number of images you upload.
What resolution should I use for 3GP?
3GP is designed for mobile screens. Use 320×240 (QVGA) for feature phones or 640×480 for smartphones. Higher resolutions work but defeat the purpose of 3GP's small file size advantage.
Can modern phones play 3GP files?
Yes — Android and most smartphones can play 3GP files. However, 3GP is primarily useful for legacy devices and MMS. For modern phones, use WebP to MP4 instead.
How do I control the slideshow length?
Total video length = number of images × image duration. For example, 10 images at 3 seconds each = 30 seconds. Adjust Image Duration to control pacing.