# Screwlab > Screwlab is a browser-based DJ player for creating chopped and screwed mixes with AI-assisted production tools. Screwlab lets users upload their own audio, estimate BPM, apply screw presets, use suggested chop points, preview changes, and record a performance in the browser. The player is free to try without an account; recording and in-player playback are free; a free account keeps your track library and queue. Screwlab Pro unlocks clean audio (MP3) downloads. ## Public pages - [Screwlab homepage](https://screwlab.com/): Product overview, workflow, features, and player preview. - [Pricing](https://screwlab.com/pricing.html): Free and Pro plan information. - [Account access](https://screwlab.com/account.html): Account creation, login, subscription status, and billing management. - [Help](https://screwlab.com/help/): Guides and explainers for screwing and chopping music. - [What Is Chopped and Screwed?](https://screwlab.com/help/what-is-chopped-and-screwed/): The meaning, history, and technique behind chopped and screwed music, including its origin with DJ Screw in Houston. - [How to Screw and Chop Your Music](https://screwlab.com/help/how-to-screw-and-chop-your-music/): A complete beginner's guide to slowing, chopping, previewing, recording, and exporting a chopped and screwed mix. ## Core features - AI-assisted BPM analysis - Chopped and screwed playback controls - Screw presets - Suggested chop points - Browser-based recording ## Access notes - The player is interactive and not a useful crawl target; it needs no account to try. - Users provide their own audio files for processing in the browser. - The public website is the authoritative source for current features and pricing.