Kopia is a free, cross-platform, open-source backup application designed for speed and security. It creates encrypted snapshots of your files and directories, storing them in your choice of cloud storage—including Google Cloud, Backblaze, Azure Blob, and Amazon S3—or on a local server/NAS. You maintain complete control with flexible policy settings: schedule backups from hourly to monthly, exclude files by name or type, and adjust compression levels. All backups are stored chronologically, making it the ideal tool for building a reliable, fully managed archive of your critical data.






