M2TS to 3GP Converter

M2TS vs 3GP — Should You Really Convert?

M2TS is the high-definition container off Blu-ray discs and AVCHD camcorders, usually carrying 1080i or 1080p H.264 video at tens of megabits per second. 3GP is the opposite: a stripped-down mobile container built for 3G phones, designed to be tiny rather than sharp. Converting M2TS to 3GP is a deliberate downscale — you trade resolution and bitrate for a file small enough to sit on an old handset or squeak under a strict size cap. If your only goal is "make it smaller but keep it looking good," convert to MP4 instead; 3GP is the right answer only when an old device or a 3GP-only workflow forces your hand.

Side-by-side Comparison

When to Pick 3GP

• A specific old phone or feature phone only plays 3GP files.
• You have a hard upload or attachment cap that even a compressed MP4 can't meet.
• A legacy MMS, kiosk, or embedded-device workflow expects a 3GP container.
• You genuinely don't need the detail and want the smallest possible clip.

When to Stay on M2TS (or Pick MP4)

• You want to keep the HD quality — re-encoding to 3GP throws detail away permanently.
• You're archiving camcorder or Blu-ray footage; keep the original M2TS as the master.
• You just want a smaller, universally playable file — M2TS to MP4 keeps H.264 quality and plays on virtually every modern device and browser.
• The target is a modern phone — any phone built in the last decade plays MP4 natively, so 3GP buys you nothing.

How to Convert M2TS to 3GP

1. Upload Your M2TS File: Drag and drop your file or click "+ Add Files" to select one or more M2TS clips from your computer; batch uploads convert with the same settings.
2. Set the Preset and Resolution: Expand Advanced Options to choose a quality Preset and pick a Video resolution — for 3GP, scaling down to a small frame is what actually shrinks the file.
3. Tune Codec or Trim (Optional): Set the video codec (H.263 or H.264 for broadest 3GP compatibility, with AMR or AAC audio), or use Trim to keep only the part you need.
4. Convert and Download: Click "Convert" and download your 3GP file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark.

3GP Codec Combinations on This Page

The 3GP container only accepts a narrow set of codecs, and Advanced Options reflects that: the Video Codec dropdown offers H.263, H.264, MPEG-4 and Xvid, while Audio Codec offers AAC, AMR Narrow Band and AMR Wide Band. The page ships with H.264 video and AMR audio selected.

Frequently Asked Questions

Will I lose quality converting M2TS to 3GP?

Yes, and significantly. M2TS holds HD video at a high bitrate, while 3GP is built around low resolution and low bitrate for mobile playback. The conversion downscales and re-encodes, so fine detail is discarded and cannot be recovered. Keep the original M2TS if you ever want the full-quality version back.

Is 3GP a good choice for a modern smartphone?

No. Any iPhone or Android phone from roughly the last decade plays MP4 (H.264) natively and at far higher quality. 3GP only makes sense for genuinely old handsets, feature phones, or a workflow that specifically requires the 3GP container. For everything else, convert M2TS to MP4.

Why is my M2TS file so large in the first place?

M2TS files come from Blu-ray and AVCHD camcorders, which record HD video (often 1080i or 1080p H.264) at 17 Mbps or more. That high bitrate is what preserves the HD detail — and what makes the files big. Shrinking them always means trading away some of that quality.

Which codecs does the 3GP output use?

3GP supports H.263, MPEG-4 Part 2, and H.264 for video, with AMR-NB, AMR-WB, or AAC for audio. On this page you can pick the video codec and audio codec under Advanced Options. H.263 with AMR is the most widely compatible combination for old devices; H.264 with AAC gives better quality if the target supports it.

Should I just convert M2TS to MP4 instead?

For most people, yes. In our testing, converting a 1080p M2TS clip to MP4 keeps the H.264 video stream looking sharp while still cutting file size substantially, and MP4 plays on essentially every current phone, browser, and TV. Choose 3GP only when a specific old device or size limit forces it — otherwise M2TS to MP4 is the better default. You can also explore other targets from the M2TS converter hub.

What resolution should I set for a 3GP file?

Small — and this is the setting that actually shrinks the file. The Preset Resolutions list on this page runs from 4320p down to 144p, and the page opens on 768p, which is far larger than any 3GP-era handset expects. Drop to 240p for a general-purpose small clip or 144p if you are targeting a genuinely old device or squeezing under a hard size cap. Leaving a 1080p M2TS at its native frame inside a 3GP container defeats the entire point of the conversion: the file stays large, and older players that only ever expected small frames will often refuse it outright.

Will the surround soundtrack survive the conversion to 3GP?

No, and it is worth knowing what happens instead. M2TS from a Blu-ray or AVCHD camcorder usually carries Dolby AC-3, often in 5.1, while the 3GP output ships with AMR selected — AMR Narrow Band is a mono speech codec sampled at 8 kHz, designed for phone calls. That means a movie soundtrack gets downmixed to mono and band-limited to telephone bandwidth, which is fine for dialogue and poor for music. If the target device supports it, switch Audio Codec to AAC before converting; if the audio matters more than the container, convert to M2TS to MP4 instead and keep a proper stereo track.

Can I trim the M2TS clip before converting?

Yes. Expand Advanced Options and use the Trim control to set a start point and duration, so only the segment you need is encoded. Trimming first also keeps the 3GP output smaller, which matters when you're squeezing under a tight size limit.