Analyze images with free online photo forensics tools for error levels, noise and hidden edits.
Sherloq
Inspect digital images with Sherloq's open-source forensic analysis tools.
About Sherloq
Sherloq is an open-source digital image forensic toolset distributed as a GitHub repository. It is a personal research project intended as a companion for experimenting with image forensic algorithms from research papers and workshops, and as a starting point for people learning about digital image forensics. The author states that it is not meant to automatically decide whether an image is forged or authentic.
The toolset is planned around a graphical interface with multiple tool windows, a file and metadata inspection tools, and export of visual and textual analysis results. The README describes the feature list as what the toolkit will hopefully provide once a beta stage is reached, and notes that some functions are not yet implemented. The current code is a Python port that the author describes as still in progress. The repository is for tracking development and is not intended for distributing a final product, so the author warns to expect bugs, unpolished code, and missing features.
Key features
- Planned Qt-based graphical interface with multiple tool windows
- Planned support for JPEG, PNG, TIFF, BMP, WebP, PGM, PFM and GIF files
- Planned file digest tool showing crypto and perceptual hashes
- Planned metadata tools for file header structure and full EXIF dumps
- Planned thumbnail analysis comparing embedded thumbnails with the original image
- Planned similar search that browses online image search services
Best for: Students, researchers, and developers who want an open-source, extensible environment for learning about and experimenting with digital image forensic techniques.
Good for
- Source code is publicly available under an open-source license, and the author invites contributions and testing
- Designed as an extensible framework for trying and comparing image forensic algorithms
- Stated educational focus, with planned online help and tutorials
Watch out for
- The author states it is not an automatic tool for deciding whether an image is forged
- Repository is not intended for distributing a final product, and bugs and missing features are expected
- Some listed functions are not yet implemented, and the Python port is still in progress
Sherloq at a glance
- Category
- Design & Creative › Photography
- 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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Sherloq FAQ
Can Sherloq automatically determine whether an image has been forged?
No. The author states that it is not meant as an automatic tool that decides whether an image is forged or not. It is intended as a companion for experimenting with algorithms.
Is Sherloq ready for production use?
The repository is not intended for distributing a final product. The author notes that users should expect bugs, unpolished code, and missing features.
Does the similar search feature use outside services?
Yes. The README describes the similar search tool as browsing online search services to find visually similar images.
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