MySQL Free plan 9.1 Visit 
Quemsi
quemsi.com
What it is
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.
Spec sheet
- What it does
- Quemsi provides tagged database snapshots, backup flows, restoration and timeline management through a web console.Read 21 Oct 2026 · quemsi.com
- Purpose
- Quemsi provides tagged database snapshots, a timeline view, and one-click restore through a web UI.Read 9 Oct 2026 · quemsi.com
- Audience
- The Solo plan is described as being for individual developers, while Enterprise is described as being for companies.Read 9 Oct 2026 · quemsi.com
- API
- The architecture page lists example REST endpoints for executing flows and querying agents and flow executions, and says full API documentation will be provided in the future.Read 9 Oct 2026 · quemsi.com
- Security
- The architecture page states that agent-to-cloud communication uses TLS 1.3, agents use certificate-based mutual TLS, and SHA-256 checksums verify backup integrity.Read 9 Oct 2026 · quemsi.com
- Privacy
- The agent performs backup and restore operations within the user's infrastructure, while the cloud service manages metadata rather than database content.Read 9 Oct 2026 · quemsi.com
- Support
- The Solo plan includes community support and the Enterprise plan includes priority support.Read 9 Oct 2026 · quemsi.com
- Headquarters
- The privacy policy gives Quemsi GmbH's postal address as Leopoldstraße 24, 12305 Berlin, Germany.Read 21 Oct 2026 · quemsi.com
- Agent architecture
- A locally deployed agent performs database operations while the cloud handles metadata, authentication and coordination.Read 21 Oct 2026 · quemsi.com
- Agent platforms
- The agent is available for Windows, Linux, and macOS, and can also run as a Java JAR or Docker container.Read 9 Oct 2026 · quemsi.com
- API authentication
- Company API tokens use qsk-prefixed secrets with selectable scopes and optional agent binding.Read 21 Oct 2026 · quemsi.com
- API limitation
- The architecture page says complete API documentation is planned for a future release.Read 21 Oct 2026 · quemsi.com
- Automation
- Recurring flows can be scheduled with timers and triggered through the UI, CLI or API.Read 21 Oct 2026 · quemsi.com
- Backup flow model
- Backup flows require a source and destination, with optional processing steps such as Zip.Read 21 Oct 2026 · quemsi.com
- CI integration
- The documented API and CLI support snapshot-before-deploy and restore-before-tests workflows.Read 21 Oct 2026 · quemsi.com
- CLI
- Quemsi publishes a CLI for Linux, Windows and Java 21 JAR execution, with --wait enabled by default.Read 21 Oct 2026 · quemsi.com
- Cross-environment sharing
- Snapshots can be shared between development, testing and production environments while remaining in customer-controlled infrastructure.Read 21 Oct 2026 · quemsi.com
- Data residency
- Quemsi states that database contents and backups remain in the customer's environment and only metadata is sent to the cloud.Read 21 Oct 2026 · quemsi.com
- Databases
- The product supports MySQL, PostgreSQL, SQL Server, and MongoDB.Read 9 Oct 2026 · quemsi.com
- Demo
- The demo supplies preconfigured databases and flows, requires no installation or credit card, and resets every day at midnight.Read 21 Oct 2026 · quemsi.com
- Deployment options
- Agents can run as Windows, Linux or macOS services, standalone processes, Docker containers or Java JARs.Read 21 Oct 2026 · quemsi.com
- Developer stack
- The repository describes the agent as a Spring Boot and GraalVM project that can be built by users.Read 21 Oct 2026 · github.com
- Flow customization
- Backup and restore flows can include custom workflows such as stopping services and running scripts.Read 9 Oct 2026 · quemsi.com
- Free usage
- The site says the Solo plan has no time limit and includes core features without restriction.Read 9 Oct 2026 · quemsi.com
- Independent listing
- UMA Technology lists Quemsi at 7.4 out of 10 from 26 directory entries.Read 21 Oct 2026 · umatechnology.org
- Legal maker
- The terms identify the provider as Quemsi GmbH.Read 21 Oct 2026 · quemsi.com
- Licence
- The public quemsi-agent repository identifies its licence as LGPL-2.1.Read 21 Oct 2026 · github.com
- Limit: customer responsibility
- The terms require customers to deploy, patch and secure agents, credentials, retention rules and database contents themselves.Read 21 Oct 2026 · quemsi.com
- Limit: future processing
- The architecture page says additional processing options will be added in future releases.Read 21 Oct 2026 · quemsi.com
- Network model
- Agent communication is outbound HTTPS on port 443, while database access stays on the local network.Read 21 Oct 2026 · quemsi.com
- Open source
- Quemsi describes its agent as open source and says users can audit, modify, or build it from source.Read 9 Oct 2026 · quemsi.com
- Privacy compliance
- Quemsi's privacy policy says it processes personal data under the EU GDPR and does not store database or backup contents.Read 21 Oct 2026 · quemsi.com
- Public API
- The integration documentation defines a /api/v1 contract for snapshots, restores, execution polling and restore-action discovery.Read 21 Oct 2026 · quemsi.com
- Public source
- The agent repository is public and says all JAR, Windows executable and Linux binary artifacts are built from its source.Read 21 Oct 2026 · github.com
- Repository activity
- GitHub shows 214 commits, zero stars, two watchers and zero forks for quemsi-agent.Read 21 Oct 2026 · github.com
- Restore flow model
- Restore flows select a tagged backup version and target database, with ClearTables and DropTables options.Read 21 Oct 2026 · quemsi.com
- Security controls
- The architecture page states TLS 1.3, OAuth2 with JWT rotation, mutual TLS agent authentication, audit logging and SHA-256 checksums.Read 21 Oct 2026 · quemsi.com
- Snapshot tagging
- Backups can be labeled with tags such as pre-migration or working-login-flow for later retrieval.Read 21 Oct 2026 · quemsi.com
- Storage
- Backups can be stored in AWS S3, Azure Blob, or local drives under the user's control.Read 9 Oct 2026 · quemsi.com
- Storage integrations
- The agent can use local paths, NAS or SAN storage, AWS S3 and Azure Blob Storage.Read 21 Oct 2026 · quemsi.com
- Supported databases
- The product lists MySQL, PostgreSQL, SQL Server and MongoDB datasource support.Read 21 Oct 2026 · quemsi.com
- System requirements
- The documented demo runtime uses an Ubuntu 22.04 Linux container, Java 21 GraalVM Native, 256 MB RAM and 1 GB storage.Read 21 Oct 2026 · quemsi.com
- Timeline
- A visual timeline shows timestamped database states and supports restoring a selected point.Read 21 Oct 2026 · quemsi.com
- Workflow customization
- Flows can include pre- and post-processing such as stopping services, running scripts, compression and validation.Read 21 Oct 2026 · quemsi.com
Plans and prices
Solo Free Unlimited databases · Unlimited environments · Unlimited flows · Core functionality · Single user · Community support Read 21 Oct 2026 · quemsi.com
Enterprise Priced on request Everything in Solo · Detailed authorization · CI/CD integration · Extra functionality · Priority support · Organizational features Read 21 Oct 2026 · quemsi.com
Strong points and limits
Strong points
- Supports four listed database systems
- Backups can use user-controlled storage
- Agent runs within user infrastructure
- Free Solo includes unlimited databases and flows
Limits
- Full API documentation is not yet provided
Who it suits
Solo is described for individual developers who need database backup and restore flows. Enterprise is described for companies and adds authorization, CI/CD integration, extra functionality, priority support, and organizational features.
Verdict
Quemsi combines database snapshots and restore flows with storage choices and an agent that operates inside the user's infrastructure.
Where Specifiction places it
- Database Backup Software#8 of 278.4
