Platform Engineer Toolkit

BY TOOLS.FUN  ·  MARCH 28, 2026  ·  5 min read

Platform engineers build the internal developer platforms that enable product teams to ship faster. The work spans Kubernetes, CI/CD pipelines, infrastructure-as-code, and developer experience tooling. These free, browser-based utilities handle the formatting, validation, and conversion tasks that come up constantly when building and maintaining platform abstractions.

JSON to YAML Converter

Convert Terraform plan JSON output to YAML, translate API responses into Helm values, or reformat CRD definitions. YAML is the lingua franca of Kubernetes, and this tool makes conversion instant.

Best for: converting Terraform output to Helm values, translating API responses into Kubernetes manifests, reformatting CRD examples.

JSON Formatter & Validator

Pretty-print and validate JSON from Terraform state, cloud API responses, and GitOps webhook payloads. Catch structural errors in JSON configurations before they break your deployment pipeline.

Code Diff Tool

Compare Kubernetes manifests, Terraform modules, and Helm chart templates before and after changes. Essential for reviewing platform changes and debugging unexpected diffs in GitOps workflows.

Crontab Calculator

Validate cron expressions for Kubernetes CronJobs, Argo Workflows schedules, and platform maintenance tasks. Preview the next ten execution times to prevent scheduling conflicts.

Base64 Encoder / Decoder

Decode Kubernetes Secrets (which are Base64-encoded by default), encode values for ConfigMaps, and inspect JWT tokens from service mesh authentication layers like Istio.

Best for: inspecting Kubernetes Secrets, encoding ConfigMap values, debugging Istio/Envoy JWT authentication.

RegExp Tester

Build regex patterns for Ingress path matching, Prometheus metric relabeling, and log pipeline filters. Test patterns with live highlighting before committing them to your platform configuration.

JSON to XML Converter

Convert JSON to XML for legacy enterprise integrations that your platform must support. Some older middleware, SOAP services, and configuration management systems still require XML input.

Timestamp Converter

Convert timestamps from platform logs, Kubernetes events, and CI/CD pipeline outputs to human-readable dates. Essential for debugging timing issues across distributed platform components.

cURL Converter

Test platform APIs, webhook endpoints, and health checks. Convert cURL commands from documentation into structured requests for debugging and integration testing.

MD5 / Hash Generator

Generate SHA-256 checksums for container image verification, artifact signing, and configuration integrity checks in your platform's supply chain security pipeline.

Password Generator

Generate strong secrets for platform service accounts, database credentials, and API tokens. Avoid weak passwords in the infrastructure layer that product teams depend on.

URL Encoder / Decoder

Encode callback URLs for webhook integrations and decode percent-encoded strings from Ingress controller logs. Prevents encoding issues in platform-level routing configurations.

Best for: debugging Ingress routing issues, encoding webhook callback URLs, fixing percent-encoding problems in API gateway configurations.
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