3GP Metadata Viewer
Inspect location tags, device make/model, timestamps, and encoder notes from 3GP/3GPP videos.
Drag & drop a file here, or click to select
Max file size: 100 MB
Looking to remove metadata instead? Go to the Metadata Remover.
Why view 3GP metadata?
Checking 3GP metadata helps you protect privacy, verify authenticity, and understand how the file was created.
Protect privacy
Spot GPS, author, or device fingerprints in your 3GP before sharing.
Verify authenticity
Check timestamps, software, and edit trails to see if a 3GP is original or altered.
Work faster
Grab technical details at a glance so you can export and deliver your 3GP with confidence.
Preview the report layout
See how we surface EXIF, PDF, and video metadata before you upload your own file.
Example Metadata Report
After uploading, you'll get a detailed breakdown of your file's hidden data, similar to the example below.
Want to check your own file's metadata? Upload it above - no signup required.
Our secure process
We show you exactly what happens when you upload a file, so you know where your data goes and what stays untouched.
Upload over HTTPS
Pick or drop your 3GP. Transfers are secure.
Parse metadata only
We read headers and metadata blocks; the file content is not changed or recompressed.
Highlight key signals
We group timestamps, authorship, location, and technical fields so you can spot what matters quickly.
Display readable results
You see structured metadata grouped by sections for fast review with no downloads required.
Delete temporary copy
The transient server copy is purged right after processing completes.
Want to try it out? Upload your file above, no signup required.
What 3GP metadata can you view?
Here are the fields you can inspect before you share or archive the file. Use them to verify provenance, quality, and privacy.
- GPS coordinates, device make/model, and capture timestamps
- Codec, bitrate, and resolution from legacy phone clips
- Encoder or carrier hints embedded in the container
What metadata lives inside a 3GP
3GP is an ISO Base Media subset developed by the 3GPP consortium for 3G mobile networks (2000-2010 era), so it shares the MP4 atom tree but adds 3GPP-specific brands (`3gp4`, `3gp5`, `3gp6`, `3gs7`) and a particular metadata vocabulary. Instead of MP4's iTunes-style ©xyz tags, 3GP uses the udta/loci atom for location (a more structured longitude/latitude/altitude/role triple) and udta/tnam, udta/perf, udta/gnre for title, performer, and genre.
The 3GPP TS 26.244 spec also defines udta/auth for author, udta/kywd for keywords, udta/clsf for classification, and udta/rtng for rating. Most of these are rarely populated — the common real-world case is a handset writing just the loci atom with GPS coordinates and leaving everything else blank. Feature-phone cameras (Nokia, Sony Ericsson, Samsung pre-Android) often also write a Manufacturer and Model string into meta/ilst that identifies the exact phone model, which is useful forensic context on legacy content.
Technical metadata sits in the same mvhd, trak, and stsd atoms as MP4. The codecs are restricted: H.263 (codec box `s263`), MPEG-4 Part 2 (`mp4v`), or H.264 (`avc1`) for video; AMR-NB (`samr`), AMR-WB (`sawb`), or AAC-LC (`mp4a`) for audio. Resolutions are small — 176x144 (QCIF) and 320x240 are the most common — and frame rates often drop to 15 fps. The viewer surfaces all of this so you can tell whether a 3GP file is worth preserving as-is or should be converted for modern playback.
3GP metadata FAQs
Why is 3GP metadata so different from MP4 metadata?
3GP was standardized by 3GPP with its own udta vocabulary (loci, tnam, perf, gnre) before iTunes-style MP4 tags existed. The two families diverged and never fully reconciled. The viewer decodes both vocabularies.
What camera-maker tags can 3GP carry?
meta/ilst can hold manufacturer and model strings — Nokia, Sony Ericsson, and Samsung feature phones all wrote these. Some carriers (NTT DoCoMo, Verizon's old V-CAST pipeline) also added their own udta entries the viewer surfaces.
Can I extract GPS from a 3GP?
Yes, from udta/loci when present. The loci atom is a structured record with longitude, latitude, altitude, and a role field (`shooting location`, `real location`, `fictional location`). The viewer decodes all four fields.
What codecs should I expect in a 3GP?
Video: H.263 (most common on pre-2007 files), MPEG-4 Part 2, or H.264. Audio: AMR-NB (8 kHz, 4.75-12.2 kbps, voice-grade), AMR-WB (16 kHz), or AAC-LC. The viewer decodes stsd to show the exact codec.
Are 3GP files still playable on modern phones?
iOS plays 3GP natively via AVFoundation. Android plays them back through ExoPlayer. Desktop browsers generally do not — you need VLC or a re-mux to MP4. The codec info from the viewer tells you whether a re-mux is enough or transcoding is required.