Introducing Substrate — AI-powered compute optimization and lifecycle managementLearn more

Free Developer Tools

Developer tools that
make Kubernetes easier

Browser-based utilities for everyday Kubernetes tasks. No sign-up, no install — just open and use.

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Popular

YAML Editor

Smart YAML editor with Kubernetes schema autocomplete, syntax highlighting, and real-time error detection.

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Kubernetes Manifest Validator

Validate K8s manifests against the official API schema. Catch misconfigurations before they hit your cluster.

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Base64 Encoder / Decoder

Encode and decode Base64 strings instantly. Perfect for Kubernetes secrets and config values.

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JSON to YAML Converter

Convert between JSON and YAML formats with a single click. Preserves comments and formatting.

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Kubernetes Resource Calculator

Calculate CPU and memory requests and limits. Estimate costs and right-size your workloads.

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CronJob Expression Builder

Build and validate Kubernetes CronJob schedules visually. Preview next run times instantly.

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Why use these tools?

Built for Kubernetes

Every tool is purpose-built for K8s workflows — with schema awareness, resource validation, and cluster-ready output.

Fast & Private

All processing happens in your browser. Your data never leaves your machine — no server round-trips, no storage.

No Sign-Up Required

Jump straight into any tool. No accounts, no email gates, no trials. Just open and use.

Need more than free tools?

Substrate gives you a complete compute optimization and lifecycle management platform — multi-cloud clusters, VMs, cost optimization, and ephemeral environments, all from one dashboard. Bring your own cloud (BYOC) and get $100 in free credits to start — no credit card required.

Get $100 Free Credits