How to Find Duplicate Photos on Your Computer (Free, No Install)
Published: 2026-09-25
After years of phone photos, screenshots, and downloads, most people have hundreds of duplicate images eating up disk space. Tools like Duplicate Cleaner and CCleaner work, but they require installation and often miss near-duplicates (resized, compressed, or slightly edited versions).
How Perceptual Hashing Works
Instead of comparing file bytes, our tool computes a 64-bit "fingerprint" for each image. Two images with a Hamming distance below a threshold are considered duplicates. This catches resized, compressed, and color-adjusted copies.
Privacy First
Most online duplicate finders upload your photos to their servers. Our tool runs entirely in your browser — your photos never leave your device.
Try our Duplicate Image Finder to reclaim disk space.