CONVERT
3GP → BMP
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Fast, secure 3GP to BMP conversion. No registration required.
Here is the short version — 3GP is the mobile video container standardised by 3GPP for early smartphones. Hence the need for BMP. Converting 3GP to BMP means extracting a still frame (or a series of them) from your video and saving each one as a BMP image. KaijuConverter runs FFmpeg server-side so the frame grab is pixel-accurate: no compression, no post-processing, just the raw video frame rewritten in the BMP encoding you picked. Context: 3GP is the mobile video container standardised by 3GPP for early smartphones. BMP is the uncompressed Windows bitmap format — bulky but pixel-perfect.
3GPP Video
Source format3GP is a multimedia container designed for 3G mobile phones. It stores video and audio at low bitrates optimized for limited bandwidth. Many early mobile phone recordings use this format.
BMP Image
Target formatBMP is an uncompressed raster image format native to Windows. Files are large but preserve exact pixel data with no compression artifacts. Rarely used on the web due to file size.
Why convert 3GP to BMP
A single image travels places a whole video cannot — article headers, slide decks, chat messages, anywhere you need illustration but not motion. Converting the right frame to BMP upfront is simpler than linking the whole 3GP.
HOW TO CONVERT
3GP → BMP
Upload the 3GP
Drag-and-drop the video. We accept 3GP files up to 100 MB on the free tier.
Pick a frame
Seek to a timestamp (default: midpoint) or request every frame as a numbered batch.
Receive the BMP
FFmpeg decodes the frame and writes it as a BMP. Download arrives in seconds.
Common Use Cases
Article and blog thumbnails
Pull a BMP hero image straight from your 3GP footage — faster than retaking the photo or paying for stock.
Video preview cards
Generate a BMP poster for a 3GP player embed so it shows a real frame instead of a black rectangle.
Documentation screenshots
Freeze a moment in a screen-recorded 3GP and export it as a BMP for help articles and manuals.
Social media stills
Instagram and LinkedIn favour static BMP posts for reach; pull one from your 3GP campaign footage in seconds.
3GP vs BMP — Strengths and limitations
What each format does best, and where it falls short.
3GP Strengths
- Extremely low bitrate and file size — great for 2G/3G networks.
- Universal playback in feature phones and early smartphones.
- Based on MP4 — easy to convert and handle with modern tools.
- Mandatory codec in every 3G device since 2001.
Limitations
- Tiny resolutions — rarely above 320×240 in practice.
- H.263 video is far behind H.264 in compression efficiency.
- Metadata support is minimal.
BMP Strengths
- Dead-simple format — trivially easy to read and write.
- Lossless and uncompressed — perfect bit-exact pixel storage.
- Universally supported in Windows applications since 1985.
- Supports 1, 4, 8, 16, 24, and 32-bit color depths.
Limitations
- Enormous file sizes — no meaningful compression in typical use.
- Not a web format — browsers support it but nobody serves BMPs over HTTP.
- No metadata support (no EXIF, no ICC profile in practice).
3GP vs BMP — Technical specifications
Side-by-side comparison of the technical details.
3GP
- MIME types
- video/3gpp, video/3gpp2
- Extensions
- .3gp, .3g2
- Container
- MPEG-4 Part 14 subset
- Video codecs
- H.263, MPEG-4 SP, H.264
- Audio codecs
- AMR-NB, AMR-WB, AAC
BMP
- Extensions
- .bmp, .dib
- MIME type
- image/bmp
- Compression
- None (typical); RLE 4/8 bit (rare)
- Color depths
- 1, 4, 8, 16, 24, 32 bits per pixel
- Byte order
- Little-endian
| Specification | 3GP | BMP |
|---|---|---|
| MIME types | video/3gpp, video/3gpp2 | — |
| Extensions | .3gp, .3g2 | .bmp, .dib |
| Container | MPEG-4 Part 14 subset | — |
| Video codecs | H.263, MPEG-4 SP, H.264 | — |
| Audio codecs | AMR-NB, AMR-WB, AAC | — |
| MIME type | — | image/bmp |
| Compression | — | None (typical); RLE 4/8 bit (rare) |
| Color depths | — | 1, 4, 8, 16, 24, 32 bits per pixel |
| Byte order | — | Little-endian |
3GP vs BMP — Typical file sizes
Approximate file sizes for common scenarios.
3GP
- 1-min MMS video (176×144) 300-800 KB
- 5-min phone clip (320×240) 5-15 MB
BMP
- Small icon (32×32) 4 KB
- Screenshot (1920×1080) ~6 MB
- 4K image (3840×2160) ~25 MB
- Scanned A4 at 300 dpi ~25 MB
Quality & Compatibility
The BMP you receive is the exact frame decoded from the 3GP — same resolution, same colour, same content. If the target BMP format is lossless (PNG, TIFF, BMP) there is zero additional loss; if it is lossy (JPG, WebP lossy) the quality setting in Advanced options controls the trade-off.
Tips for Best Results
- Pick a lossless BMP (PNG, TIFF) for frames you plan to edit further, and a lossy BMP (JPG, WebP) for final web delivery.
- For thumbnails, test a handful of timecodes and keep the most expressive frame — the first second of a 3GP is rarely the best choice.
- If the BMP looks blurry, the 3GP frame itself was motion-blurred; try a neighbouring frame at a still moment.
Frequently Asked Questions
Yes. The free tier accepts files up to 100 MB without registration, email capture or watermarks. Paid plans raise the size cap, enable batch conversions and provide a REST API for automation, but nothing on the free tier is quality-limited — the output is exactly the same as on any paid plan.
Yes. The Advanced panel accepts a timestamp in HH:MM:SS.mmm and FFmpeg seeks to that exact presentation time. You can also request the first, middle or last frame shortcuts, or a full batch (one BMP per second or per N frames).
Uploads run over HTTPS, files are processed in isolated containers, and both the source 3GP and the BMP output are auto-deleted within two hours. No account is required, file contents are never logged, and KaijuConverter does not use uploads for AI training. The paid plan adds a signable data-processing agreement for regulated workflows.
Yes by default. The extracted frame is written at the same width and height as the source video. If you need a smaller image for the web, an Advanced "scale" option downsizes during the same pass so you do not have to re-encode twice.
Most files finish in well under a minute. Small images and documents are typically ready in a few seconds; large video or audio files scale roughly with duration. Upload speed from your network is usually the dominant factor, not server time.
Partially. We tone-map HDR 3GP content back to SDR when the target BMP does not support wide-gamut. For proper HDR preservation pick a modern BMP that supports it natively (JPEG XL or AVIF) and leave "preserve HDR" enabled in Advanced.
Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
BMP Bitmap Format: The Complete Technical Guide
Everything about the BMP format: DIB header variants, pixel storage, color depths (1 to 32-bit), RLE compression, alpha channels, and BMP vs PNG vs TIFF.
Read guideBMP Format: Windows Bitmap Images Explained — Headers, Compression & Use Cases
Learn what BMP files are, how the Windows Device Independent Bitmap format works, supported colour depths, compression options, and when to use BMP vs PNG.
Read guideBMP Bitmap Format: Complete Technical Guide to Windows Bitmap Images
Learn BMP (Windows Bitmap): BITMAPINFOHEADER structure, pixel encoding, color palettes, RLE compression, and raster fundamentals for legacy graphics.
Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.