ColdAisle

Overview

ColdAisle is an on-premises data center infrastructure management application that runs on Windows with IIS, PHP, and SQL Server. It is a strong fit for operators who want to replace spreadsheets or openDCIM while keeping inventory in-house and using directory authentication.

Its appeal is a broad, free, MIT-licensed toolset; the trade-off is a Windows-specific stack and IPAM that stops short of IPv6, DNS, and DHCP server functions.

Key features

Floor plans, power, and cooling

ColdAisle pairs 2D floor plans with interactive 3D views of cabinets, row PDUs, and raceways. That makes it useful for teams planning space and capacity alongside rack layouts, rather than maintaining those views separately. Power management covers A/B zones, panels, single-, dual-, and three-phase PDUs, outlet inventories, history charts, and overload alerts. Cooling tools include CRAC and CRAH equipment, environmental sensors, and 3D airflow visualization, giving facilities operators a shared view of physical infrastructure.

Monitoring, access, and migration

SNMPv2c and SNMPv3 support, MIB uploads, device discovery, OID templates, and scheduled polling give operators a substantial toolkit for device monitoring. SNMP secrets are encrypted at rest with the application key. Authentication can use local accounts, LDAPS with Active Directory group mapping, or Microsoft Entra ID OIDC single sign-on; built-in Administrator, Operator, Auditor, and Viewer roles help distinguish responsibilities.

Teams moving from openDCIM can import data through a live API or offline JSON dumps and preview the migration before proceeding. That lowers the risk of a blind cutover. The IPAM feature has a narrower remit: it does not provide IPv6, DNS, or a DHCP server, so teams needing those functions must keep or choose separate services.

Pricing

ColdAisle — free. The free plan is self-hosted, released under the MIT License, and includes rack management, power and cooling monitoring, and space and capacity planning. With no paid tier or seat restriction described, it is a practical option for organizations that can operate the application themselves and want its infrastructure scope without a license charge. There is no free trial because the product is free to use.

The cost is operational rather than a subscription: deployment is on-premises, and the application runs on Windows using IIS, PHP, and SQL Server. Bug reports and feature requests go through GitHub Issues; the maker says there is no paid ticket portal in v1. Teams that require a paid support channel should weigh that limitation before relying on it for critical operations.

Platforms

ColdAisle is self-hosted and on-premises, with a web interface and a Windows application stack. It suits organizations that can provide that environment and want customer inventory to remain under their own hosting; it is a poor fit for teams seeking a vendor-hosted service or a Linux-hosted deployment.

Who it's for

ColdAisle is aimed at data center operators replacing spreadsheets or openDCIM, especially teams that need directory authentication while keeping floor plans and inventory in-house. Its combination of planning, power, cooling, and SNMP monitoring is most valuable when those jobs belong in one system. Teams with a Linux-only infrastructure, a requirement for built-in IPv6, DNS, or DHCP server capabilities, or a need for paid support should look elsewhere or plan complementary services.

Pros and cons

• Pro: 2D planning and 3D views cover cabinets, row PDUs, and raceways, with power and cooling tools alongside them; this supports joined-up space and facility planning.
• Pro: SNMP discovery and polling, plus encrypted-at-rest SNMP secrets, combine monitoring breadth with a stated security safeguard.
• Pro: Active Directory group mapping and Entra ID single sign-on suit organizations that want directory-based access rather than local accounts alone.
• Pro: OpenDCIM import with a preview gives teams a route to migrate without committing data sight unseen.
• Con: The Windows, IIS, PHP, and SQL Server stack rules out Linux-only deployments.
• Con: IPAM lacks IPv6, DNS, and DHCP server functions, limiting its use as a complete address-management service.
• Con: Support requests go through GitHub Issues, with no paid ticket portal in v1.

Alternatives

Compare data center infrastructure management software if you want to weigh ColdAisle against a broader category of tools.

• Global Site Management is worth considering for teams seeking a freemium option with Android and iOS support, or a no-cost entry-level plan for smaller data centers and pilots.
• Danbyte is another free, open-source, self-hosted option if Linux and API support matter; its free plan includes all features and has no seat license or license expiry.
• openDCIM is a free, GPL v3 web application for teams that prefer a Linux-capable self-hosted alternative.
• Brightlayer DCIM is a paid alternative sold through an Eaton reseller; buyers can request a demonstration or consultation.
• Hyperview suits buyers considering a paid product with a 30-day, all-features trial that needs no credit card; its listed plan is priced per asset, per year.
• Cormant-CS is a paid option for buyers whose needs fit its approximately 25–30 rack subscription, listed at $7,200 a year for a one-year agreement.
• EcoStruxure IT is a paid alternative with a listed three-year Expert plan for 250 nodes.
• Sunbird dcTrack is a paid choice for teams seeking a plan with unlimited users, sites, and assets, priced at $19.50 a month on an annual subscription.

Verdict

Choose ColdAisle if you want a free, self-hosted system that brings floor planning, rack capacity, power, cooling, and SNMP monitoring together, with directory-based access and an openDCIM migration path. Its main reasons to look elsewhere are the Windows application stack, incomplete IPAM scope, and lack of a paid support portal in v1.