Image Similarity Python Packages

pyvisim

A repository for computing similarity between images for image retrieval and image clustering tasks.

czkawka

Python bindings for the Czkawka Rust library, a fast image similarity engine

fastdup

fastdup is a powerful, free tool designed to rapidly generate valuable insights from image and video datasets. It helps enhance the quality of both images and labels, while significantly reducing data operation costs, all with unmatched scalability.

cropcatcher

CropCatcher: locate a query image inside candidate images using classical local feature matching algorithms, with IIIF support

similarities

Similarities: a toolkit for similarity calculation and semantic search. 相似度计算、匹配搜索工具包，支持亿级数据文搜文、文搜图、图搜图，python3开发，开箱即用。

undouble

Python package undouble is to detect (near-)identical images.

imgsim

The AugNet Python module contains functions for the fast computation of image similarity.

agentic-vision

Persistent visual memory for AI agents — capture screenshots, embed with CLIP ViT-B/32, compare, recall. MCP server + Rust core library.

tasnif

Unsupervised image clustering with modern deep embeddings (CLIP, timm) + K-Means. Sort a folder of images into clusters with one Python call or CLI.

compimg

compimg - python package for computing similarity between the images

inline-snapshot-phash

Perceptual hash storage protocol for inline-snapshot

cilissa

🖼️ Interactive tool for assessing digital image similarity

relsim

🍑 relsim: Relational Visual Similarity | pip install relsim 🌍 (CVPR 2026)