diff --git a/README.md b/README.md
index 071d4a4c..dda4ddd4 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,7 @@ Table of Contents
   * [Cloudmersive](https://cloudmersive.com/) — Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 800 calls/month.
   * [Colaboratory](https://colab.research.google.com) — Free web-based Python notebook environment with Nvidia Tesla K80 GPU.
   * [Collect2](https://collect2.com) — Create an API endpoint to test, automate, and connect webhooks. Free plan allows for two datasets, 2000 records, 1 forwarder, and 1 alert.
+  * [Conversion Tools](https://conversiontools.io/) - Online File Converter for documents, images, video, audio, eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). Free tier is limited by file size and number of conversions per day.
   * [CurlHub](https://curlhub.io) — Proxy service for inspecting and debugging API calls. Free plan includes 10,000 requests per month.
   * [CurrencyScoop](https://currencyscoop.com) - Realtime currency data API for fintech apps. Free plan includes 5000 calls per month.
   * [Datapane](https://datapane.com) - API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools.