cbird
The cbird command-line program retrieves image and video content by visual content, with search and deduplication tools.
About cbird
cbird is a command-line program for content-based retrieval of images and videos. It examines pixels to create comparable features and perceptual hash codes, finding duplicates and similar files that file hashing misses, including resized, cropped, rotated, or edited versions.
It uses a cached search index, includes a GUI for evaluating matches, can search images inside zip files, and supports hardware video decoding. Actual image and video format support varies with the Qt and FFmpeg configuration.
Key features
- Find duplicates missed by file hashing using pixel comparison
- Search images and videos by visual similarity
- Store results in cached searchable index
- Evaluate matches in GUI with side-by-side comparison
- Search for images contained inside zip files
- Decode video with hardware including multiple GPUs
Best for: People managing local image and video collections who work from the command line to find visual duplicates.
Good for
- Detects duplicates that file hashing misses by comparing image content
- Handles edited versions such as resize, crop, color changes, and video clipping
- Delete and Replace actions send files to trash instead of deleting permanently
Watch out for
- Supported formats vary with Qt and FFmpeg configuration
- Video extensions listed by the tool may be unavailable at runtime
- GUI use is described as lacking documentation
cbird at a glance
- Website
- github.com/scrubbbbs/cbird
- Category
- Online Tools › Image Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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cbird FAQ
How does cbird find duplicates that file hashing misses?
It examines the pixels of files to get comparable features and perceptual hash codes.
Can cbird permanently delete files?
No. The Delete and Replace actions use the trash/recycler by default, with no way to permanently delete files.
What file formats can cbird read?
Common formats and many obscure formats depending on Qt and FFmpeg setup; run cbird -about to list extensions, and images inside zip files are supported.
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