Question: Is there a free online tool that analyzes my music mixes and provides feedback for improvement?

If you're looking for a free online tool to analyze your music mixes and offer suggestions for improvement, Mix Check Studio is a great choice. The AI-powered system lets you upload audio files, select whether it's a mixed or mastered track and the genre, and get detailed feedback. The system analyzes the track privately without retaining the audio file and offers anonymized track statistics.

Another useful option is Cryo Mix, an AI-based music mixing and mastering service. Cryo Mix offers tools like AI Mixing, which can adjust vocal levels, add backing vocals and tweak settings to produce a finished mix. It also has an AI Audio Separator that isolates individual stems from a single audio file and a mastering tool to ensure industry-standard quality.

For a more specialized mastering service, eMastered offers fast, professionally processed versions of music tracks. It uses AI technology to analyze audio and make changes, including Stemify for high-quality stem separation. The service offers a free account option, so it's good for musicians and sound engineers of all levels.

Last, Maastr is an online audio mastering service that uses AI to speed up audio tracks. It's got an interface to upload audio files and applies AI-powered mastering for a professional sound in minutes. You can also add mix notes for feedback and store all versions of a track, so it's good for sound engineers and musicians.