Developer Tools · head to head
Cortex vs Tilt
Cortex
Developer Tools
Internal developer portal that scores service ownership and maturity rather than just cataloguing services
- From
- On request
- Rated
- -
Tilt
Developer Tools
Local Kubernetes development loop that rebuilds and live-updates containers on save
- From
- Free
- Rated
- -
The short version
- Only Tilt has a free tier, so it costs nothing to try first.
- Each has a real cost: Cortex pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.; Tilt docker acquired Tilt in 2022 and the team now splits its time across Compose and Docker Desktop, so feature velocity is modest and the product's long-term priority inside Docker is not guaranteed; treat it as a stable utility, not a growing platform.
- They diverge on capability: Cortex covers Service catalogue, Tilt covers Live update.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Cortex and Tilt actually diverge.
Identical on both: user rating (Not yet rated), category (Developer Tools).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Cortex
- Service catalogue
- Scorecards
- Initiatives
- Self-service templates
- Query language
- Eng intelligence
- Integrations layer
- On-call and ownership mapping
Only in Tilt
- Live update
- Tiltfile as code
- Unified web UI
- Selective rebuilds
- Local and remote clusters
- Resource dependencies
- Extensions registry
- Custom buttons and triggers
What people use each for
The jobs each tool is most often brought in to do.
Cortex
- A platform team that needs to prove to leadership how far a Kubernetes or framework migration has actually progressed across hundreds of servicesnot Tilt
- An organisation where ownership of production services is genuinely unknown after reorganisations or acquisitionsnot Tilt
- Enforcing production readiness standards on new services at creation time rather than at incident reviewnot Tilt
- Replacing a self-hosted Backstage that is consuming a full-time engineer or two just to stay upgradednot Tilt
Tilt
- A team of ten or more engineers whose application is fifteen microservices on Kubernetes and who currently wait on CI to test a changenot Cortex
- An organisation onboarding new developers who want a single command that stands up the whole stack from a committed Tiltfilenot Cortex
- A platform team giving product engineers a consistent local environment against a shared remote development clusternot Cortex
- A codebase where one repository contains several services and rebuilding all of them on every edit is the main source of lost timenot Cortex
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Cortex
- Pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- The catalogue is only as accurate as the metadata you supply, so an organisation with inconsistent repository conventions spends its first quarter cleaning data before any scorecard means anything.
- Scorecards create political friction: publishing a per-team grade turns an engineering standard into a performance metric, and teams will game the rules rather than fix the underlying issue.
- It is closed source and hosted, so organisations with strict data residency or air-gap requirements have limited options compared with running Backstage themselves.
- Value scales with organisation size, so a company with fifty engineers and thirty services will find the catalogue tells them nothing they did not already know while still paying an enterprise contract.
Tilt
- Docker acquired Tilt in 2022 and the team now splits its time across Compose and Docker Desktop, so feature velocity is modest and the product's long-term priority inside Docker is not guaranteed; treat it as a stable utility, not a growing platform.
- The Tiltfile is Starlark, a Python dialect, so non-trivial setups become real programs that need reviewing and maintaining, and the person who wrote yours becomes a single point of failure.
- Live update only works when the running container can accept synced files and restart the process; compiled languages, distroless images and read-only filesystems often force you back to a full image rebuild, which removes the main benefit.
- It assumes Kubernetes. If your development target is plain Docker Compose or serverless functions, Tilt adds a cluster you did not need and a layer of abstraction with no payoff.
- There is no commercial support contract, no SLA and no paid tier, so when a Kubernetes version upgrade breaks something you are dependent on GitHub issues and a Slack channel rather than a vendor you can escalate to.
Pricing, plan by plan
Cortex
On request- Cortex$undefined/year
- Service catalogue and ownership mapping
- Scorecards and initiatives
- Self-service templates
Tilt
Free- TiltFree
- Apache 2.0 licensed
- All features, no paid tier
- Community support via the Kubernetes Slack #tilt channel
Which should you pick?
Choose Cortex if
- You need service catalogue.
- You work on Web, API.
- You also want scorecards.
Choose Tilt if
- You need live update.
- You want to start without paying.
- You work on Linux, macOS, Windows.
- You also want tiltfile as code.
Questions people ask
- Is Cortex or Tilt better?
- Neither clearly leads. Cortex starts at On request and Tilt at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cortex or Tilt?
- Tilt has a free tier; the other does not. Paid plans start at On request for Cortex and Free for Tilt.
- Does Cortex or Tilt run on more platforms?
- Cortex runs on Web, API. Tilt runs on Linux, macOS, Windows.
- Can I use Tilt for free?
- Yes. Tilt has a free tier, so you can try it without paying. Cortex starts at On request.
- What is Cortex best used for?
- Cortex is most often used for a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services, an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions, enforcing production readiness standards on new services at creation time rather than at incident review, replacing a self-hosted backstage that is consuming a full-time engineer or two just to stay upgraded. Of those, a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services and an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions are not what Tilt is typically brought in for.
- What can Cortex do that Tilt cannot?
- Cortex covers Service catalogue, Scorecards, Initiatives, Self-service templates. Tilt covers Live update, Tiltfile as code, Unified web UI, Selective rebuilds.
Answered from the vendors’ own pages
Cortex: How is Cortex different from Backstage?
Backstage is an open source framework you build and staff. Cortex is a hosted product with scorecards and initiatives out of the box and no platform team required to keep it running.
Tilt: Is Tilt free?
Yes, entirely. It is Apache 2.0 open source with no paid tier and no licence fee.
Cortex: Is pricing published?
No. Cortex requires a sales conversation and prepares a custom proposal.
Tilt: Who owns Tilt now?
Docker, which acquired it in May 2022. It remains open source and the repository is still actively maintained.
Cortex: Can it self-host?
It is offered as a hosted product; on-premise arrangements are handled through sales rather than published.
Tilt: Do I need a remote cluster?
No. It works against a local cluster such as kind, minikube or Docker Desktop, and also against a shared remote development cluster if your services are too heavy to run locally.
Cortex: What is the main adoption risk?
Bad or missing service metadata. The catalogue and every scorecard on top of it inherit whatever quality your repositories already have.
Tilt: How is it different from Skaffold?
Both automate the build-deploy loop. Tilt puts more weight on the live-update path and a multi-service dashboard; Skaffold is more configuration-driven and closer to Google's tooling.
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