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Upload your .m2ts file by dragging it into the upload area or clicking to browse.

Choose your output settings. The default settings work great for most files.

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Om konvertering fra M2TS til 3GP

M2TS (MPEG-2 Transport Stream) is the container format used by Blu-ray discs and AVCHD camcorders, wrapping H.264/AVC or H.265/HEVC video with AC3, DTS, or LPCM audio. Each packet includes an extra 4-byte timestamp for precise synchronization — critical for broadcast and disc-based playback. 3GP is the 3GPP multimedia format designed for GSM mobile networks, optimized for low-bandwidth streaming and feature phone playback. Converting M2TS to 3GP compresses high-quality Blu-ray or camcorder footage into the most compact mobile video format.

Hvorfor konvertere M2TS til 3GP?

M2TS files from Blu-ray discs can be 20-50 GB and from AVCHD camcorders 1-4 GB per hour — far too large for mobile transfer or playback on basic phones. Converting to 3GP dramatically reduces file size (often 50-100x) while producing a format that works on virtually every mobile device, including budget smartphones and feature phones. 3GP is also ideal for MMS (multimedia messaging) where file size limits are as low as 300 KB.

Vanlige bruksområder

Compressing AVCHD camcorder footage from Sony or Canon cameras for quick sharing via MMS
Creating mobile-friendly clips from Blu-ray disc rips for sending to family members on basic phones
Preparing home video highlights from M2TS recordings for viewing on older feature phones
Reducing Blu-ray bonus feature clips to 3GP for archival on low-storage devices
Converting AVCHD wedding video clips for distribution to guests via mobile messaging

Slik fungerer det

FFmpeg demuxes the M2TS transport stream, extracts the H.264 or H.265 video and AC3/DTS/LPCM audio, then re-encodes everything for 3GP constraints. Video is downscaled to QCIF (176x144) or CIF (352x288) using H.263 or MPEG-4 Part 2 at 64-384 kbps. Audio is transcoded from multi-channel AC3/DTS to AMR-NB mono at 12.2 kbps or AAC-LC at 32-64 kbps. The transport stream's timing information is discarded in favor of 3GP's simpler timing model.

Kvalitet og ytelse

The quality reduction is dramatic — M2TS at 1080p/30 Mbps to 3GP at CIF/256 kbps represents roughly a 100x compression ratio. Fine detail, text, and fast motion from the original HD or 4K content will be heavily compressed. The 3GP output is watchable for identifying content and following basic narratives but is not suitable for quality-critical viewing. Audio quality is telephone-grade with AMR-NB.

FFMPEG EngineModerateMinimal Quality Loss

Enhetskompatibilitet

Device	M2TS	3GP
Windows PC	Partial	Partial
macOS	Partial	Partial
iPhone/iPad	Partial	Partial
Android	Partial	Native
Linux	Partial	Partial
Web Browser	No

Anbefalte innstillinger per plattform

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

Tips for best resultat

1Use CIF (352x288) resolution for the best visual clarity that 3GP supports — QCIF (176x144) is only needed for the absolute oldest devices.
2Select AAC audio instead of AMR if your target phone supports it — the quality improvement is substantial.
3Trim the M2TS to just the clip you need before converting to 3GP — this saves processing time and keeps the 3GP file small.
4For MMS sharing, keep the total 3GP file under 300 KB — this means clips of 10-15 seconds at minimum settings.
5Preview the 3GP output before sending — small-screen compression artifacts from HD source material can make some content unrecognizable.

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M2TS to 3GP conversion serves the specific need of making HD/Blu-ray content accessible on the most basic mobile devices. The extreme compression tradeoff is unavoidable but makes otherwise inaccessible high-definition content viewable on any phone.

Ofte stilte spørsmål

Dramatically smaller. A 4 GB M2TS AVCHD clip (about 30 minutes at 1080p) might become 20-50 MB as 3GP at CIF, depending on bitrate settings — roughly 80-200x smaller.

No. 3GP is designed for resolutions up to VGA (640x480) at most. The standard targets are QCIF (176x144) and CIF (352x288). Downscaling from 1080p or 4K is mandatory.

No. 3GP supports only mono or stereo audio. Multi-channel surround sound from Blu-ray M2TS files is downmixed to mono (AMR-NB) or stereo (AAC-LC).

Yes. Sony Handycam AVCHD files (often with .mts extension) are the same format as M2TS and convert to 3GP identically.

MMS limits vary by carrier: typically 300 KB to 1.2 MB. For MMS, use QCIF resolution at minimum bitrate and keep clips under 15-20 seconds.

Yes. .mts and .m2ts are the same MPEG-2 Transport Stream format. AVCHD cameras use .mts, Blu-ray discs use .m2ts. Both convert to 3GP identically.

Relaterte konverteringer og verktøy

Konverter også M2TS til

M2TS to MP4→M2TS to AAC→M2TS to AVI→M2TS to FLAC→M2TS to WAV→M2TS to WebM→

Konverter også til 3GP

MP4 to 3GP→AAC to 3GP→AVI to 3GP→

Egenskap	M2TS	3GP
Fullt navn	Blu-ray BDAV MPEG-2 Transport Stream	3GPP Multimedia
Filendelse	.m2ts	.3gp
Best egnet for	Blu-ray format	Mobile optimized

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