# Reverse Image Search - Find Similar Images & Sources on the Web

> Fast and reliable reverse image searches - find visually similar images and original image sources on the web in real-time.

## Overview

Reverse Image Search is a fast and reliable API for finding visually similar images and original image sources on the web in real-time. It returns matches as structured JSON via REST.

Who is this API for: developers building image provenance and copyright tools, duplicate detection, brand monitoring, and visual search.

What it returns: visually similar images and original source pages for a given image.

Need help integrating? Contact support@openwebninja.com.
For high volume / large scale plans, please contact support@openwebninja.com.

## Endpoints

### GET /reverse-image-search - Reverse Image Search
Send an image URL and get the top 500 source web pages.
Parameters: **url**, limit, safe_search
Full URL: `https://api.openwebninja.com/reverse-image-search/reverse-image-search`

## Base URL and Authentication

- Base URL: `https://api.openwebninja.com/reverse-image-search`
- Auth: API key in the `x-api-key` header. Get a key by subscribing (free tier available) at https://app.openwebninja.com/api/reverse-image-search

## Topics

reverse image search api, image search api, visual search api, similar images api, image source api, duplicate image detection api, copyright monitoring api, image lookup api

## Links

- API page: https://www.openwebninja.com/api/reverse-image-search
- Get an API key / subscribe: https://app.openwebninja.com/api/reverse-image-search
- Pricing & plans: https://app.openwebninja.com/api/reverse-image-search/pricing
- Website: https://www.openwebninja.com
- OpenAPI spec: https://openwebninja.s3.us-east-1.amazonaws.com/portal/openapi/reverse_image_search.yaml
- Support: support@openwebninja.com

_Last updated: 2026-05-27_