Build your OUIS
System Information Open Source Urbanized.
Bunker assembles your 100% open source OUIS, a sovereign collaborative and office suite, an alternative to Microsoft 365 and Google Workspace, hosted in Europe. Mail, drive, video, ERP, CRM. Each building block is pre-configured, hosted on your own servers and yours to bring back in-house whenever you decide.
"Open source always wins in the end."
For each open source solution deployed, Bunker contributes 5% of its revenue to the projects involved.
Contributed to open source
Revenue redistributed to open source projects your IS depends on. We guarantee the sustainability of your software components.
Vendor lock-in
Complete freedom to migrate or change providers at any time.
Digital commons
Contribution to the ecosystem and European digital commons.
Our tools catalog
A selection of open source tools, ready to be deployed on your infrastructure
Sites and content
Directus
A CMS without imposed interface, to manage your content with flexibility, from your own infrastructure.
Alternative to: Contentful, Strapi (cloud), Sanity
Webstudio
Build pixel-perfect websites without writing code, keeping control over the output and the hosting.
Alternative to: Webflow, Wix
ERP and BI
Odoo
Manage your business from A to Z: invoices, projects, CRM, HR... without depending on proprietary solutions.
Alternative to: SAP, Salesforce, Microsoft Dynamics
Metabase
Create dynamic dashboards from your data, without code. Your teams regain control over their analyses.
Alternative to: Power BI, Tableau, Looker
Security
Vaultwarden
Store and share your passwords securely with a Bitwarden-compatible solution, hosted on your servers.
Alternative to: LastPass, 1Password, Dashlane
DocuSeal
Create, send and sign your documents online with an open source solution. eIDAS compliant, complete API and embeddable components.
Alternative to: DocuSign, HelloSign, Yousign
Marketing and social media
Postiz
Schedule and publish your content on all your social networks from a single interface, without cloud intermediary.
Alternative to: Buffer, Hootsuite, Later
Matomo
Analyze your website traffic with a privacy-respecting solution. GDPR-compliant alternative to Google Analytics, data hosted in Europe.
Alternative to: Google Analytics, Adobe Analytics
Data and code
PostgreSQL
A robust, secure and open source database, suitable for critical applications.
Alternative to: Oracle, MySQL, Microsoft SQL Server
GitLab
Collaborate on your code, track versions, manage your projects without prying eyes.
Alternative to: GitHub, Bitbucket
GitLab Runner
Run your CI/CD pipelines on your own servers. Keep control over your builds, tests and deployments.
Alternative to: GitHub Actions, CircleCI, Jenkins
Observability
Grafana
Visualize your system, application or network metrics in real time.
Alternative to: Datadog, New Relic
Loki
Aggregate and query all your logs hassle-free, with sovereign performance.
Alternative to: Splunk, Elastic Stack
Tempo
Follow a request's journey through your system to better understand what's slowing down your services.
Alternative to: Jaeger, AWS X-Ray
Mimir
Store and leverage your metrics at scale with a resilient backend.
Alternative to: Prometheus (cloud), InfluxDB
Collaboration and storage
Nextcloud
Store, sync and share your files securely. Collaborate with calendar, contacts, video conferencing and more.
Alternative to: Google Drive, Dropbox, Microsoft 365
SFTPGo
Move files over SFTP, FTPS or WebDAV with fine-grained access control, backed by S3 storage.
Alternative to: rsync.net, AWS Transfer Family, WeTransfer Pro
Cal.diy
Open your slots and let people book a time, with an open-source Calendly alternative you host yourself.
Alternative to: Calendly, Doodle
Coming soonGokapi
Share large files with end-to-end encryption (E2EE). Set expiration and download limits.
Alternative to: WeTransfer, Send (Firefox), Swiss Transfer
Infrastructure
Proxmox
Manage your virtual machines and containers from a powerful open source platform.
Alternative to: VMware, Hyper-V
Headscale
Link your servers and laptops on an encrypted WireGuard private network, run by your own control plane.
Alternative to: Tailscale, Zscaler
France-Nuage (control-plane)
Control your infrastructure via API with our open source control-plane.
Alternative to: AWS, Azure, GCP
Ready to build your OUIS?
Let's discuss your needs and design together an 100% open source information system, sovereign and adapted to your organization.