ponchio/untrunc
Restore a damaged (truncated) mp4, m4v, mov, 3gp video. Provided you have a similar not broken video. observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4857
- days_rel: n/a
- days_push: 832
- n_releases_24m: 0
Adoption not part of the score
1947 stars · 258 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Untrunc is a command-line tool written in C++ that repairs damaged (truncated) MP4, M4V, MOV, 3GP video files and M4A audio files. It works by using an intact reference file from the same camera or app to reconstruct the broken file's metadata and recover playable content.
Use cases
- repair a truncated mp4 video recorded on my phone
- fix a corrupted mov file from my camera
- recover a broken 3gp video that won't play
- restore a cut-off m4v recording
- fix a damaged m4a audio file
- untrunc a video whose metadata was lost mid-recording
When to choose
- you have a working reference video from the same device or app
- your video is truncated mid-recording and unplayable
- you're comfortable using the command line and building from source
When to avoid
- you have no intact reference file from the same source
- the video is corrupted in ways other than truncation
- you need a GUI-based repair tool
- you need a maintained tool with broad codec support beyond Libav 12
Facets
cli-tool · maturity maintenance
video-processing cli developer-tools media files cli cross-platform video-repair truncated-mp4 file-recovery libav data-recovery video command-line linux macos
1 source
- readme: https://github.com/ponchio/untrunc · fetched 2026-08-28 · 00f83ee0579f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ponchio/untrunc | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem