Bad Peggy review
A free local scanner for finding unreadable JPEGs in selected folders.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Bad Peggy is a free desktop utility from Coders' Lagoon for photographers and computer users who need to check JPEG collections for damage. It scans selected folders, identifies files that fail integrity checks, and reports corrupt or unreadable images. Because it runs locally on Windows, macOS and Linux, it suits solo users and small teams that want a focused desktop check without relying on a cloud photo library.
Its main strength is a narrow, practical workflow: point the application at folders, run a batch scan, and review the image files flagged by the checks. That approach fits large collections where manually opening every JPEG would be impractical. The published product details describe folder scanning and batch processing, making Bad Peggy more suitable for collection maintenance than for organizing, searching or editing images. Its free pricing also keeps the utility accessible for occasional integrity checks.
Bad Peggy should be chosen when JPEG file health is the immediate concern and a local desktop application is sufficient. It is not a replacement for a full photo-management suite: the listed capabilities do not include cataloging, metadata tools, face recognition, AI search, cloud sync or RAW support. Users who need those broader library, discovery or editing functions should look to a product built around complete photo management instead. For a targeted JPEG-integrity pass across selected folders, however, its limited scope is the point.
Bad Peggy pros and cons
- Where it wins
- Scans folders for corrupt or unreadable JPEG files
- Checks large photo collections in batches
- Runs locally on Windows, macOS and Linux
- Where it doesn't
- Focuses on JPEG integrity rather than broader photo management
- No cataloging, metadata, face recognition or AI search tools
- No cloud sync or RAW-file support
Bad Peggy fact sheet, pricing and score →
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