What is the best free hashtag tracking tool to monitor hashtag performance?

I would recommend you using - https://www.trackmyhashtag.com/ It is the best free hashtag tracking tool which can monitor any hashtag performance. It provides useful hashtag analytics on an Analytics dashboard which you can easily export in CSV file and use as per your requirements. It hashtag various useful features : 1. Real-time hashtag or event tracking 2. Fetch historical Twitter data 3. Measure and analyze hashtag campaigns 4. Track the most active influencers 5. Analyze competitors best hashtags The analytics provided by this tool helps you plan an effective strategy for your social media marketing. Use the free trial provided by @Trackmyhashtag in which you can track any 2 hashtag, keyword, event or account. Visit Trackmyhashtag and see how it will work for you!