Databasus vs Quemsi
Databasus
databasus.com
Quemsi
quemsi.comSide by side
| Figure | Databasus | Quemsi |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · Database Backup Software | 8.0 (#14) | 8.4 (#8) |
| Purpose | Databasus is a free, open-source, self-hosted tool for backing up databases, with a focus on PostgreSQL point-in-time recovery. | Quemsi provides tagged database snapshots, a timeline view, and one-click restore through a web UI. |
| Storage integrations | Supported destinations include local storage, S3-compatible storage, Cloudflare R2, Google Drive, Azure Blob Storage, NAS, FTP, SFTP, and rclone. | The agent can use local paths, NAS or SAN storage, AWS S3 and Azure Blob Storage. |
| Support | The maker directs users to its Telegram community for questions, configuration help, and release updates, and lists [email protected] as a contact. | The Solo plan includes community support and the Enterprise plan includes priority support. |
| Supported databases | It supports PostgreSQL, MySQL, MariaDB, and MongoDB, with PostgreSQL as its primary focus. | The product lists MySQL, PostgreSQL, SQL Server and MongoDB datasource support. |
| System requirements | The documented minimum requirements are one CPU core, 500 MB RAM, 5 GB installation storage plus backup storage, Docker Engine 20.10 or later, and Docker Compose 2.0 or later. | The documented demo runtime uses an Ubuntu 22.04 Linux container, Java 21 GraalVM Native, 256 MB RAM and 1 GB storage. |
Plans
In their own words
Databasus
Databasus is free, open-source, self-hosted database backup software for Linux and web deployment, with PostgreSQL as its primary focus. It also supports MySQL, MariaDB, and MongoDB. PostgreSQL workflows include logical backups, physical full and incremental backups, and WAL streaming for point-in-time recovery; physical, incremental, and WAL options require PostgreSQL 17 or newer. Schedules can run hourly, daily, weekly, monthly, or through cron. Destinations include local storage, S3-compatible storage, Cloudflare R2, Google Drive, Azure Blob Storage, NAS, FTP, SFTP, and rclone. The service can periodically restore a recent backup in a temporary database container and report the result. It includes access management, teams, projects, and audit logs. Databasus says credentials and backup files use AES-256-GCM encryption, while database access is read-only with SELECT permissions. Installation supports a Linux script, Docker, Docker Compose, and Helm for Kubernetes. The Free, open-source software plan costs nothing under Apache 2.0 and includes all described features.
Quemsi
Quemsi is a hybrid tool for database backup and restore, with a web UI for tagged snapshots, timeline history, and one-click restoration. It supports MySQL, PostgreSQL, SQL Server, and MongoDB. Backup and restore flows can include custom steps such as stopping services or running scripts, and backups can go to AWS S3, Azure Blob, or local drives under the user's control. Its agent runs operations inside the user's infrastructure, while the cloud service handles metadata rather than database content. The agent is open source and can be audited, modified, or built from source. Agent-to-cloud communication uses TLS 1.3, agents use certificate-based mutual TLS, and SHA-256 checksums verify backup integrity. Agents are available for Windows, Linux, and macOS, and can also run as a Java JAR or Docker container. The free Solo plan costs nothing and includes unlimited databases, environments, and flows for one user, with community support.